​Damp homes promote mould and dust mites which can cause respiratory problems. While dehumidifiers and ventilation systems help reduce the symptoms of the problem, it’s important to track down the underlying cause of dampness in your home. The problem may be relatively cheap and easy to fix.

• Signs of dampness
• Where does excess moisture come from?
• How to tackle sources of dampness inside
• How to tackle sources of dampness outside

Signs of dampnessInside

• Musty smells
• Damp or mouldy clothes or shoes in wardrobes
• Mould forming behind paintings, mirrors and furniture
• Mould, stains or watermarks on ceilings or walls

Condensation on windows, especially in bedrooms, isn't necessarily a sign of excessive dampness if it only happens occasionally during winter.
Outside

• Rotting wood in the structure of your house
• Musty smells or mould under the house

Where does excess moisture come from?InsideThe average NZ family produces up to 8 litres of moisture in the home each day from activities like cooking and showering. This is normal and can be managed by insulating, heating and ventilating.
Find out if your house is dampTo prevent mould growth, the amount of moisture in your home (relative humidity) should ideally be below 65% most of the time, and rooms should be heated to at least 18 degrees.
To assess the temperature and relative humidity in your house, try using a simple, low-cost hygrometer. Take readings over a few days or weeks in different rooms of your house, especially in winter, to find out where you might need to address dampness issues.
 Learn more about hygrometers
OutsideSources of moisture, such as leaking pipes or damp rising from underneath your house, are often hidden and can go undetected for a long time, damaging to your home.

How to tackle sources of dampness insideTop tips

• Eliminate avoidable moisture - dry washing outdoors rather than indoors.
• Extract moisture by using extraction fans (vented externally) in the kitchen, bathrooms and laundry.
• Air out the home regularly - open doors and windows to create a cross draft, or use a ventilation system.
• Keep the home warm - insulation and heating improve ventilation effectiveness and reduce the risk of mould growth on cold surfaces.

Watch: How to fix dampness in your home | 2:55 min


Bathroom, kitchen and laundry

• Avoid drying washing inside - dry it outside or under a covered verandah, garage or carport. If it’s raining, use a clothes dryer (ducted to the outside).
• Use lids on pots when cooking to reduce moisture and save energy.
• Install a shower dome to stop steam escaping into your bathroom.
• Use extractor fans - read our tips below.

Ensure extractor fans are:

• vented to the outside in your bathroom, kitchen and laundry - fans should not vent into your ceiling space
• properly sized and located for the type of room - undersized fans or ducting will be noisy but ineffective
• turned on before having a shower or bath - shut the bathroom door and leave the bathroom window open slightly to improve the fan's effectiveness
• left running for a few minutes after a shower or bath with the bathroom door shut and window open until most of the moisture has cleared
• cleaned regularly to maintain their performance.

Living areas and bedroomsAvoid unflued gas heatersUnflued gas heaters can be portable or have pipes fixed to the walls. They release large amounts of moisture and toxic gases into your house, and can also be a fire hazard.
If you’re using a gas heater or LPG portable heater without a vent or flue:

• always keep at least one window open to allow fresh air to enter the room
• never use in bedrooms.

Furniture

• Keep away from external walls (especially uninsulated walls) - leave a gap of 10cm or more to avoid mould growing behind furniture in winter.
• Keep mattresses off cold floors - put them on a bed base to let air circulate underneath.
• Leave wardrobes slightly open for ventilation.

DehumidifiersDehumidifiers are useful when it’s raining, but are unlikely to stop mould growth unless you tackle the sources of damp, and heat and ventilate your home. At low indoor temperatures, desiccant dehumidifiers tend to be more effective than refrigerant compressor dehumidifiers. Although they use electricity, it’s eventually released as heat and helps warm up the room.
Whatever type of dehumidifier you use, run it together with a heater - a warm room makes it easier for a dehumidifier to extract moisture.

How to tackle sources of dampness outsideUnder floors

• Look for leaks from showers or pipes under the house and fix any issues.
• Check for blocked or leaking downpipes and gutters, and ensure downpipes connect to storm water drains - this is best checked during heavy rain.
• Look for surface water flowing under your house during heavy rain - reshape the outside levels or install drainage channels or subsoil drains as needed. Ask a licensed drain layer for advice.
• Check there are vents on all sides of the house in the subfloor walls - inadequate ventilation is the most common cause of subfloor dampness. Install vents where they are missing - ask a qualified builder for help on sizing.
• Uncover vents blocked by plants, soil or pest barriers, and clear the subfloor area of obstructions.
• Install a vapour barrier (thick polythene sheeting) on the ground under your house. This keeps the moisture in the ground and stops the air under the floor from getting damp. New Zealand Standard NZS4246 has detailed instructions on how to do this.

 How to install a vapour barrier - NZ Standard for installing insulation
If you’re not sure about any of these actions, talk to a qualified builder.

Floors, walls and roofs

• Look for leaks in wall and roof cladding and flashings.
• Check plumbing pipes and services for leaks and moisture getting into walls or floors near showers and baths. Leaks like these are often hidden and can go unnoticed.

Measuring the moisture content of your home's materials is often the easiest way of finding hidden leaks. Talk to a registered or accredited building surveyor who is experienced in non-invasive moisture measurement techniques.
Registered building surveyors - New Zealand Institute of Building Surveyors website 
Accredited building surveyors - Building Officials of New Zealand website 

Concrete floors and walls

• Check for damp patches and white mineral deposits which indicate moisture is coming through. Lift flooring to check the concrete floor surface.
• Waterproofing sealants/moisture barriers can be applied to seal the concrete or masonry. Seek advice from a qualified builder about the best product for your situation, and also discuss any improvements to drainage that may be necessary.

Construction moistureIf your house is new or recently renovated, there’s probably excess moisture in some of the construction materials that needs to dry out. This may take a few months but you can speed up the process with heating and ventilation.
Find out if your home is warm, dry and healthyUse HomeFit to find out if your home is warm, dry and healthy - it's a free online check designed by the Green Building Council.
Do the online check at www.homefit.org.nz

This page links you with information about building and renovating.
Search our catalogueDesign and construction topics can be searched by subject. Start with whatever you are building, add the words design and construction and do a subject search. For example:
Some subjects have their own heading, such as shelving (furniture).
Browse our latest house and garden titles.
MagazinesRBdigital Magazines features a number of building and home renovation magazines, including Home Renovations, Dwell, Inside Out, The Family Handyman and more.
Find more magazines by searching on the subject Building – Periodicals and House Construction – Periodicals.
  
eResourcesBuilding and construction links
Building and constructions websites listed in our Internet Gateway, including useful weathertightness links.
Standards
Standards provide specifications to be used consistently as rules, guidelines, or definitions, to ensure that materials, products, and services are fit for their purpose. Find out how you can access the ones you need.
Standards New Zealand
Search New Zealand standards and access all New Zealand (NZS) and joint Australian & New Zealand (AS/NZS) Standards that are available in PDF format. Includes New Zealand Standards and Earthquake FAQs under the “services” tab.
Access this at any of our libraries.
Home Improvement Collection
Home improvement articles for the hobbyists and the professional alike. Coverage includes architectural techniques, tool and material selection, and much more.
Use at a library or enter your library card & password / PIN.Check with your council before you startBuilding and DIY projects need to follow certain guidelines – for safety and weathertightness, for example.
Before you start a building project, it pays to be informed. For most projects, such as decks, pools, or additions, building consent needs to be applied for and issued before building work commences. Resource consent may also be required.
Working with your local councilLocal councils administer the compliance process for their area, inspecting buildings and issuing consents. Consents must be applied for and issued beforebuilding work commences. MBIE's Building Performance site has a good guide to understanding the building consent process.
The consents and licences section of the Christchurch City Council web site includes information about building forms and charges, design and planning guides, as well as information on building consents. Consent application formsare available on the Christchurch City Council site.
Other district councils, such as Selwyn, Hurunui and Waimakariri will have regulations and by-laws specific to their area.
Christchurch City Council building information
Building law in New ZealandThe Ministry of Business, Innovation and Employment (MBIE) outlines building law in New Zealand on its Building Law and Compliance page.
GlossariesThis list will help you find authoritative sites that clearly define building-industry related terms, and act as an introduction to building law and the compliance process.
LIM – Land Information Memorandum
Information from the Christchurch City Council. Anyone may apply for a LIM, which gives information on any piece of land, including (among other information) any building consents or other authorisations applying to buildings on the land.
PIM – Project Information Memorandum
Information from the Christchurch City Council. The PIM provides an applicant with information relevant to the proposed building work, other than the normal requirements under the Building Act, 1991. This information enables the applicant to assess the feasibility of the project before proceeding with a Building Consent application with the Council.
Standards New Zealand Glossary of building terms (NZMP 4212:1998)
It is available at Tūhuratanga | Discovery, Level 3, Tūranga. New Zealand Standards are also accessible online in our libraries.

The online check.. This will give you an idea of how well your home - or the home you're thinking of buying or renting - is performing.

Once you answer a couple of introductory questions, you’ll end up on this dashboard:

Here you’ll be asked to answer 20 or so questions spread over 3 sections: dry, warm and safe & efficient. It should take you less than half an hour to complete, including some time to check under the home and in the roof space. If you know your home well, it should take you less than 10 minutes.
If you're unsure what a question means click on the information "i" to the right of the question. This will bring up helpful information on what to look for.
The online check won't give you a HomeFit certificate - for this you'll need to get a qualified HomeFit assessor to visit the property.

Getting your home HomeFit certifiedOnce you've made the improvements suggested by the online check go to “Get HomeFit certified”. This will bring up a range of local qualified HomeFit assessors who can visit your home to do the inspection and, if your home is up to the standard, give you the HomeFit certificate. You can email the assessors directly from this website.

HomeFit PLUSHomeFit has a higher standard called HomeFit PLUS. This requires homes to have:

• more insulation (including wall insulation)
• more energy efficient lights
• more energy efficient heating
• better ventilation systems

Having a HomeFit PLUS stamp for your home will differentiate it from the rest of the market. Your HomeFit assessor will be able to tell you if it meets the standard.

Marketing a home as HomeFitIf your home is certified as HomeFit or HomeFit PLUS it will be recorded on some property websites with the HomeFit tick alongside other information such as the number of bedrooms and bathrooms. This means that anyone looking to buy or rent your home can have some peace of mind that it’ll be warmer, drier and safer. If for any reason you don’t want people to know your home meets the standard then please email KiaOra@HomeFit.org.nz.

The HomeFit online check reportWhile you’re completing the online check you can click at any time on the “Get your self-assessment checklist”. This will bring up a short report summarising where your home is doing well and where it could do with some improvements. You can print this out at any time and/or send this as a link in an email for example.

Installer DirectoryThe HomeFit self-assessment report includes a list of local installers and suppliers who can come to your home and sort out any outstanding issues. Many of these installers are also trained HomeFit assessors who will be able to complete the HomeFit assessment once they’ve finished any remedial work.

The report lets you email the installers and ask them to quote for the work. We recommend getting a number of quotes to make sure you’re getting value for money.
I want to use HomeFit to self-check multiple propertiesThat’s fine. Just register to use the HomeFit website and you can save multiple properties and retrieve these whenever you log in. They are visible under the "Account" button at the top of the screen. This could be useful if you are looking at multiple properties to buy or rent, or you hold a portfolio of properties. Remember though that you’ll need to get a formal assessment from a qualified assessor to be able to get a home certified as HomeFit.
What about the RTA Amendment regulations for rental properties?The qualified HomeFit assessor will also check whether your home meets the insulation and smoke alarm requirements of the Residential Tenancies (Smoke Alarms and Insulation) Regulations 2016 (RTA). Even if you’re not thinking about renting this home it’s useful to know if it would meet the standard. It’s also useful to know that the fire alarms are working and are in the right place.

…and the Healthy Home Guarantee Act (HHGA) Standards?The New Zealand Government is consulting on further requirements for rental properties likely to come in force after 2020. This will include standards for heating and ventilation as well as standards for insulation and smoke alarms (like the current RTA but maybe more stringent).

The latest consultation gives a number of different options, all of which are less rigorous than HomeFit so, if you get a home HomeFit certified, it is likely to meet the Healthy Homes Guarantee Act 2017 (HHGA). Once the Healthy Home Standards have been formally published we will update HomeFit to include a check on the HHGA.

I want to know all the techy details about what HomeFit requiresSure, you can find the HomeFit Technical Manual on the NZ Green Building Council website.
​
Needing to get a new building assessed?If you’ve just built, or are about to build, a brand new home that you want to be healthy, safe and warm, then go here.

Advantages of being a First Time Home Buyer
Becoming a first time home buyer is a big decision, but being a homeowner comes with many advantages. A mortgage payment combined with property taxes and insurance is often the same or only slightly more than monthly rent. Instead of throwing away your rent money, you will be building equity with each payment. Additionally, your payments will be offset by tax savings from mortgage interest deductions, which constitute most of the payment in the early years of a mortgage. Finally, real estate has historically appreciated.

Challenges of being a First Time Home Buyer
One of the biggest hurdles in the first-time buyer’s purchase is producing cash deposit for the down payment and buyer’s closing costs. If your income enables you to qualify for the necessary mortgage loan.

A good place to start the entire process is to visit a mortgage loan officer to “pre-qualify” and establish your maximum loan amount. Call Tony Mounce Mortgages today! This loan maximum, coupled with your available cash, will determine the price range in which you should look. You can begin shopping by communities you want and need, remembering that “location-location-location” can be as important as the home itself.
When shopping for a mortgage, look at the overall cost, not just the interest rate. Generally speaking, the higher the rate, the lower the number of points charged. Make sure you understand any hidden costs or special early payment penalties, which could create problems for you. Look at different mortgage products, such as shorter-term fixed-rate loans or adjustable rate loans, but be sure you understand what your “worst case scenario” is if interest rates rise.

First Time Home Buyer Real Estate Agent
Buying a home is usually an emotional decision, and you need the counsel of a reputable, knowledgeable Canterbury first time home buyer agent who can help you buy wisely. As a first-time buyer, professional real estate assistance can be crucial. You should insist that the agent work with you as a “buyer’s agent” to be your advocate in the transaction.
Call now!

​If you have a fire extinguisher in your home, you'll be better prepared to put out small fires before they become big ones.
For businesses, please view our commercial advice on fire extinguishers.
​
Using a fire extinguisher
Only use a fire extinguishers when:
·       It's safe to do so considering the size and location of the fire (your extinguisher will only last 10-15 seconds once started).
·       You're confident you understand how to use the extinguisher correctly.
·       Everyone has been evacuated and accounted for at your safe meeting place.
·       Fire and Emergency New Zealand has been called.
·       You can safely access and retreat from the fire.
Remember, life is more important than property. Don't put yourself or others at risk.

Operating a fire extinguisher
When operating a fire extinguisher, use the 'PTASS' technique:
·       Pull the safety pin or remove the clip.
·       Test squirt the extinguisher to make sure it is working.
·       Aim the nozzle at the base of the fire from a safe distance. Most extinguishers are designed to be operated from about 2 - 3 metres away.
·       Squeeze the handles.
·       Sweep the extinguisher from side to side while aiming at the base of the fire.

Installing a fire extinguisher
You should mount fire extinguishers on the wall, out of reach of children.
Place fire extinguishers in noticeable places where they can be accessed safely, such as:
·       In or near the kitchen – not too close to the stove or cooking surfaces
·       In the garage
·       In cars, caravans and boats

Types of fire extinguisher
There are many different types of fire extinguishers:
·       Water
·       Foam
·       Wet chemical
·       Dry powder
·       Carbon dioxide
·       Specialised materials for Class D fires

The type of fire extinguisher you need depends on the class of fire you're most likely to experience.
There are 6 classes of fire:
·       Class A (Wood paper plastics)
·       Class B (Flammable & combustible liquids)
·       Class C (Flammable gases)
·       Class D (Fires involving combustible metals)
·       Class E (Electrically energised equipment)
·       Class F (Cooking oils and fats)

Choosing a fire extinguisher
The most likely type of fire to occur in your home is a cooking oil or fat fire in the kitchen. So if you're buying your first fire extinguisher, you should choose one for the kitchen that is capable of extinguishing Class F fires.

A Wet Chemical extinguisher is best for extinguishing cooking oil and fat fires. This type of extinguisher can also be used on most other classes of fire in the home. However, don't use wet chemical extinguishers on fires with a live electrical source.

While an ABE Dry Powder extinguisher is suitable for other types of fire in your home, you should never use it on a cooking oil or fat fire as the pressure from a dry powder extinguisher will cause the fire to spread.

Ideally, you should protect your home against the widest range of fire hazards with both an ABE Dry Powder extinguisher and a Wet Chemical extinguisher.

​Updated 15th September 2018

RELATED CONTENT
Smoke alarms
Working smoke alarms are your only voice. Find out why it's important to make sure you have long-life photoelectric type smoke alarms installed in your home.
 
·      
Creating an escape plan
In a fire, you'll only have 1 or 2 minutes to escape your house. That's why it's essential to have an escape plan in place and to practice it regularly.
 

What is Thermal Imaging? 
Thermal Imaging Reports. Infrared (thermal imaging) is an advanced, non-invasive technology that allows the inspector to show clients things about their homes or buildings that can't be revealed using conventional inspection methods.
​


What is thermal imaging used for? 
Thermal imaging is a method of improving visibility of objects in a dark environment by detecting the objects' infrared radiation and creating an image based on that information. Thermal imaging, near-infrared illumination, low-light imaging and are the three most commonly used night vision technologies.

Updated - September 2018 

​People who are sleeping do not smell smoke and are unlikely to wake up during a fire. The most effective way to ensure house occupants wake up and get to safety is to install smoke alarms.

·       legal requirements
·       how many alarms?
·       where to locate alarms
·       maintenance.

Legal requirements?
Smoke alarms are a requirement under New Zealand Building Code clause F7 Warning systems. This applies to new homes and all existing homes undergoing building work.

Acceptable Solution F7/AS1 requires Type 1 smoke alarms, which must have: 
·       a hush button to silence the alarm for at least 60 seconds  
·       a test button 
·       a sound level that complies with NZS 4514:2009 Interconnected smoke alarms for houses – not less than 75 dBA at the sleeping position and not more than 100 dBA at 1.8 m height. (The standard can be downloaded for free.)

On floors with bedrooms the smoke alarms must be located either in every sleeping space or within 3.0 m of every sleeping space door. In this case, the smoke alarms must be audible to sleeping occupants on the other side of the closed doors.
In multi-storey homes there must be at least one smoke alarm on each level, however having an alarm in each sleeping space is considered preferable.
Although there are several types of alarms that can be used to comply with Building Code requirements, Fire and Emergency New Zealand recommends hard-wired alarms or photoelectric alarms with batteries that last up to 10 years.
F7/AS1 does not require smoke alarms in houses to be interconnected, but this is a good idea (and it is a requirement in a part of NZS 4514 that is not referenced). With interconnected alarms, when one smoke alarm detects fire smoke, all alarms will sound. Some models connect wirelessly.

Under the Residential Tenancies (Smoke Alarms and Insulation) Regulations 2016
all rental homes must have smoke alarms: 

·       The alarms must be either hard wired or photoelectric battery alarms with a battery life of at least 8 years. 
·       If alarms have a battery, it is the tenant’s responsibility to replace the battery when it is worn out.
·       There must be at least one smoke alarm installed in the sleeping space or within 3 metres of the entrance to the sleeping space. 
·       There must be an alarm on each floor where there is a habitable space however having an alarm within each sleeping space is preferable.

How many alarms?
Fire and Emergency New Zealand recommends installing an alarm in each sleeping and living space and interconnecting them – a sensible approach to ensure full compliance with F7/AS1. New alarms are available that are smaller and more discreet with longer battery life than the older models.

Where to locate alarms?
Alarms should ideally be installed on the ceiling, at least 200 mm from a wall or a ceiling beam to avoid dead air space. With sloping ceilings the alarm should be 200–500 mm from the apex.
An alternative (but not preferred) position is high on a wall, at least 100 mm from the ceiling and 600 mm from corners to avoid dead air pockets.
To reduce the risk of false alarms or faults, do not install:
·       in a kitchen, garage or bathroom 
·       near a heat source such as a heat pump or solid fuel burner 
·       in damp or draughty areas.
​
Installing Smoke alarms is recommended in all sleep-outs.
 
Larger homes
At least two smoke alarms are needed in extended plan houses.
 
Separated sleeping areas
At least two smoke alarms are needed where there are two sleeping areas separated by the living area.
 
Placement of smoke alarms
At the very least, a smoke alarm should be placed between the sleeping area and living areas.
 
More than one storey
Where a house has more than one storey there should be at least one smoke alarm on each level.

Maintenance
Vacuum over smoke alarms to avoid dust build-up, and test with the test button monthly. The smoke detection element can be tested annually with an incense stick. Battery alarms should be replaced every 10 years.
 
Updated: 30 August 2018

From 1 July 2019, it will be compulsory for all rental properties to meet the new minimum insulation requirements. All landlords should check that the insulation at their properties meets the standards and take action if necessary before the new requirements become compulsory.

Why has the government introduced new insulation requirements?
In 2015, the New Zealand Government introduced important reforms to the Residential Tenancies Act which require all landlords to ensure that their rental properties meet minimum insulation requirements. The changes were in response to concerns that many rental properties did not provide adequately safe, warm, or dry accommodation, particularly for lower income tenants. 
The initiative, run by Tenancy Services, is called Warmer, Drier, Safer Homes. 
Private landlords have been afforded a grace period until 1 July 2019 to meet the insulation requirements of underfloor and ceiling insulation. 
What are the new requirements?
Right now

• All new tenancy agreements must include an insulation statement.
• If you install or replace insulation at a rental property, then it must meet the required standard.
• Installation or repair of insulation products, such as reflective foil, that are electrically conductive is banned.
• Social housing where tenants pay Income Related Rent must have underfloor and ceiling insulation that meets the required standards, provided it can be practically installed.

By 1 July 2019

• All rental properties, including private rentals, must have underfloor and ceiling insulation that meets the required standard where it can be practically installed.

What happens if I don’t comply?
Failure to meet the insulation requirements is an unlawful act under the Residential Tenancies Act. Landlords may face fines of up to $4,000 for failure to comply. 
The Ministry of Business, Innovation and Employment has a Tenancy Compliance and Investigations Team that investigate and enforce the law against landlords in breach of their obligations, including meeting the insulation requirements. 

What are the required standards? Do I need to upgrade or install new insulation?
Use our flowchart to see whether you need to take action to upgrade or install new insulation. 
Pro Tip: If you’re unsure whether your insulation meets the requirements, you should consult a qualified, professional insulation installer or inspector. 
Note: consider ceiling and underfloor insulation separately. You should go through the flowchart twice: once for ceiling insulation, and then again for underfloor insulation.
Watch this video from EECA Energywise to learn more about the insulation requirements

When is insulation not in reasonable condition?
There is no strict or particular criteria for whether insulation is in a ‘reasonable condition’. However, you should consider the following factors: 

• Effectiveness - whether the insulation is fully effective in insulating the house.
• The 4 D’s - the extent of any dampness, damage, degradation, or displacement of the insulation, including problems such as rips, tears, excessive settlement or compression, animal nests, mould, contamination, entrance holes for animals.
• Gaps - whether there are any gaps in the insulation, other than gaps necessary for the function of the premises and the supply of services (e.g. water pipes).
• Ancillary Material - condition or absence of material ancillary to the insulation (e.g. strapping or staples).

Consult the Insulation Requirements Guide and other resources from Tenancy Services for more information on whether insulation is in reasonable condition.
Repair or Installation of Foil Insulation is Banned

DANGER WARNING: Foil insulation poses a serious danger to your safety as it may conduct electricity from live wires. You should turn off mains power at your premises before inspecting foil insulation and/or consult a qualified professional insulation expert. 
Due to the danger posed by foil insulation, installation or repair of it is now banned. This means that landlords are now prohibited from: 

• Installing new Foil Insulation - landlords cannot install new foil insulation.
• Replacing or Repairing Foil Insulation - landlords cannot repair foil insulation that does not meet the new requirements - if the foil insulation is not in reasonable condition and does not have a high enough R-value, then it must not be repaired or replaced with foil insulation. It must be replaced with non-foil insulation.

You may only continue to use foil insulation if it was installed before 1 July 2016 and it is in reasonable condition and meets the R-value requirements. 
Read more from Tenancy Services about the ban on foil insulation. 
Key Resources to Learn More about the Insulation Requirements

• Insulation Safety - How to safely check, inspect, and install insulation.
• Compulsory Insulation Requirements - What the requirements are, how you can comply, the necessary standards, costs, and exceptions.
• Detailed Insulation Requirements Booklet - Detailed safety and insulation information about the requirements and what you should do to make sure your property complies.
• Warmer, Drier, Safer Homes - Broader information about the Tenancy Services initiative, compliance teams, smoke alarms, and when various requirements come into effect.
• Does your rental home meet the insulation standards? - Practical information and advice about whether your rental home is up to the necessary standard for insulation.

Exceptions to Mandatory Insulation
There are 5 main exceptions where a property may be exempt from having to meet the ceiling and underfloor insulation requirements:
1. Underfloor or Ceiling Space Unsafe or Impracticable to Access
This exception applies to areas of homes where it would be unsafe or impracticable to access those areas due to limited access, their design, potential for substantial damage, or healthy and safety reasons. The area must be unsafe or impracticable for a professional insulation installer, not just a landlord or other unqualified person. 

There are 3 common situations where this exception may apply: 

• Substantial Building Work or Damage Required - When an experienced professional insulation installer could not access the area without causing substantial damage to the property or substantial building work being required.
• Health and Safety Risk - When an experienced professional insulation installer could not install insulation in a particular areas without creating a risk to the health and safety of any person. The risk must be greater than that usually considered acceptable for professional installers. This is usually where installation would pose a significant risk to the safety or health of the installer.
• Installation Impracticable - When it is simply not reasonably practicable to install insulation in a particular area. For example, because there is not sufficient space between the ceiling and the roof. 

This exception applies to particular areas of every rental property. So, if it would be unsafe or impracticable to install insulation for one room, insulation must still be installed in all other rooms where it is safe and practicable to do so.

No Exception: When there is no current access point for ceiling or underfloor
Even if there is no existing access point for a ceiling or underfloor, the landlord is expected to create such an access point in order to conduct the necessary insulation work, provided that it does not require significant building work. 
2. Underfloor or Ceiling Spaces which are directly below or above habitable spaces
It will commonly be impracticable to install insulation in areas of ceiling or underfloor which are directly above or below habitable spaces.
Some common or important examples are: 

Inaccessible Roof Spaces

Some ceilings and roofs have no way to access or insulate them without removing and replacing the existing ceiling or roof - this includes: 

• Skillion ceilings
• Very low-pitched roofs
• Bitumen membrane skillion roofs
• Lean-to skillion roofs

If at any point the roof or ceiling is replaced, making any cavity accessible, then work must be done to ensure the premises meets the insulation requirements. 

Inaccessible Underfloor Spaces
Some underfloor spaces have no means of access meaning that installation of insulation is not possible - this includes: 

• Areas with concrete slab floors
• Floors suspended directly above habitable spaces of neighbouring units
• Areas of floors that are too low to the ground for a professional installer to do the required work

If at any point such areas do become accessible for a professional installer, the necessary insulation work must be done at that point. 

Low Roof Clearance

If part of a roof is too low to install insulation that meets the requirements, then a less thick insulation product may be used in those low-clearance areas. 
Remember: Insulation must keep a distance of at least 25mm from the roof underlay in all parts of the ceiling-roof area. 
Apartments and Units

Insulation does not need to be installed where the habitable parts of a unit are directly above or below the ceiling or floor of another unit. 
Installation of insulation in such circumstances would likely require significant building work, meaning it is a matter for the Body Corporate. 
Outbuildings and Garages

Outbuildings such as garages or sheds that are separate from the living areas of a property do not need to meet the insulation requirements. If, however, part of an outbuilding adjoins a habitable space, then that part must meet the insulation requirements. For example, if the roof of the garage is directly below the floor of a habitable space. 

No Exception: When there is no current access point for ceiling or underfloor
Even if there is no existing access point for a ceiling or underfloor, the landlord is expected to create such an access point in order to conduct the necessary insulation work, provided that it does not require significant building work. 

Habitable Spaces outside main premises:
Any space, building or structure that is not part of the main premises but which is consistently used as a habitable space must meet the insulation requirements. This includes, studios, flats, caravans, or sleepouts. 

3. Property meets particular insulation requirements at time of building, as approved by local council
In some very limited circumstances, a property may comply with particular insulation requirements specific to that property at the time of its construction. When these requirements do not meet the minimum R-values, such a premises may fall into this exception. 
This exception usually applies when the local council gave development approval for a building design that had an insulation design where other forms or areas of insulation made up for minimal underfloor or ceiling insulation. For instance, where wall insulation made up for minimal ceiling or underfloor insulation. The landlord should provide evidence of the building specifications and of compliance with insulation requirements at the time of building. 
The landlord must, however, ensure that the insulation remains in reasonable condition even if it falls into this exception.
4. Landlord Plans to Demolish or Substantially Rebuild Property within 12 months of tenancy starting
A premises does not need to meet the insulation requirements if the landlord intends to demolish the property or substantially rebuild part of it within 12 months of the start of the tenancy. For this exception to apply, the landlord cannot simply have an intention to rebuild or demolish. The landlord must have evidence of the intention to rebuild or demolish within 12 months, such as an application for building consent, redevelopment work, or resource consent.
5. When the property is sold and then immediately leased back to the previous owner-occupier for a period of 12 months or less
A premises does not need to meet the insulation requirements if the property is sold and then immediately leased back to the former owner-occupier. This exception only applies for the first 12 months of that tenancy. If the tenancy continues beyond 12 months, then the landlord must take action to meet the insulation requirements. 
Read more about the exceptions

Checking your insulation
SAFETY FIRST!
Only check insulation yourself if you can do it safely - if you can’t do it safely, then hire a qualified professional to do it for you.
EECA Energywise has helpful guides and tips on checking and installing insulation safely: 

• Checking Ceiling Insulation
• Checking Underfloor Insulation

Helpful Tips

• Professional Help - If you’re unsure whether it’s safe or what the standard of the current insulation is, you should consider hiring a qualified professional.
• Make the Space Safe - Before you enter a ceiling or underfloor space, make sure it is safe to do so. Turn off the power at the mains, as there may be exposed live wires in the roof or ceiling - this is an electrocution risk! If there is foil insulation installed, be especially careful. You should wait for a few minutes after switching off mains power as the foil may still be conducting electricity. Proceed with extreme caution around foil insulation and avoid unnecessary direct contact with it.
• Safety Gear - Wear safety equipment such as gloves, dust masks, overalls, glasses/goggles, sturdy enclosed footwear.
• Assistance - Don’t check the insulation when you’re alone. Make sure an adult is nearby to help you if needed.
• Stand on Frame in Roof - When in a roof space, ensure you stand on the frame and supports connected to it. Standing elsewhere may not support your weight and you risk damaging the ceiling or falling through it.
• Clearances Around Lights - Ensure that insulation is clear of hot items or sources of heat such as downlights, transformers, and flues. Debris should be clear of any electrical appliances or lights - if in doubt, call a qualified electrician.
• Avoid Hot Roof Spaces - Do not enter hot roof spaces. Wait until it has cooled down, take regular breaks, take a bottle of water, and make sure another adult is in the house to help you if required.
• Avoid Health Risks - If you know there is a health risk in a particular area, do not enter - e.g. asbestos, exposed wires, sewage.
• Don’t get stuck! - If a space is too small, cramped, or awkward to access, don’t risk getting stuck! Get professional help.
• Leave the Wiring Alone! - Leave any wiring or electricity-conductive materials alone and consult the assistance of a qualified electrician.
• Avoid Tampering with Clearances - Don’t fill in required safety clearances around electrical appliances or similar.

Read more safety insulation information
Insulation Subsidies
Subsidies of 50% of insulation costs are available to landlords that have low-income tenants. To see if your property may qualify, visit the EECA Energywise website:
EECA Funding for Insulation

Some local councils also have insulation subsidy programs. Check with your council to see if you may qualify. 
Do the walls need to be insulated?
Wall insulation is not compulsory. Installing wall insulation, where possible, may still be good practice for landlords to improve the energy efficiency and warmth of their rental property. Wall insulation may also be a selling point to attract higher-paying tenants and improve the resale value of your property.
Though wall insulation is not compulsory, you must still disclose whether there is such insulation and its nature and type as part of the compulsory insulation statement attached to a Residential Tenancy Agreement.
Further Reading from Tenancy Services
Savvy Houz Inspectionsstrongly recommends further reading and seeking information from Tenancy services before taking any action with insulation. 
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Insulation Safety
Does your rental home meet the insulation standards?
Compulsory Insulation
Insulation Requirements Booklet
Warmer, drier, safer homes
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The rules and regulations regarding building and designing for fire safety are outlined in the Building Act 2004.

One of the main goals of the Building Act is that people who use a building can escape from that building if it's on fire. For this reason, the Act requires that Building Consent Authorities (BCAs) send certain building consent applications to Fire and Emergency New Zealand for comment. 

The engineering unit of the Fire and Emergency New Zealand reviews these applications and provides a memorandum back to the BCA before any building consents are granted.
You can find more information about your obligations when building and designing for fire safety in our guide to owner responsibilities.

Building owners in New Zealand are obligated to take a number of fire safety precautions.

For more information, refer to the Fire Safety and Evacuation of Buildings Regulations 2006. 
Fire fighting and smoke detectionSome form of fire detection and suppression system should be provided in all commercial premises.We strongly recommended that first aid fire-fighting equipment, namely fire extinguishers and hose reels, be provided in all commercial premises.
Building occupants should be trained in how to operate this equipment correctly. It's important that all fire detection and suppression equipment is well maintained and clearly identified.

Providing an evacuation procedureOwners of buildings listed in schedule 1 of the Fire Safety and Evacuation of Buildings Regulations 2006 must follow fire safety precautions and have an evacuation procedure in place.

Tenants of the building are required to follow evacuation procedures in a fire emergency. Owners or tenants of certain buildings (described in paragraphs (d), (e), (j), (m), or (n) of Schedule 1) must have employees trained to assist occupants to evacuate.

In addition to meeting part 1 of the Fire Safety and Evacuation of Buildings Regulations 2006, the owners of some buildings that meet certain conditions must have an evacuation scheme approved by Fire and Emergency New Zealand. Owners of these buildings must maintain their approved evacuation scheme by carrying our regular trial evacuations or implementing a training programme. You can find more information in our guide to evacuation schemes or on the online evacuation scheme website.

Maintaining a means of escapeBuilding owners must maintain the means of escape from fire for the building. This means:

• Exits must be kept clear of obstacles at all times.
• Exit doors must not be locked, barred, or blocked.
• Smoke-control and fire-stop doors must not be kept open (unless done so in a way that complies with the building code).
• Stairwells and passageways must not be used for storage or accumulation of waste.




• Flammable cleaning liquids and other flammable materials must not be stored near the means of escape from fire for building. They must also be stored in non-combustible containers with close-fitting lids.

Taking care of appliancesBoth building owners and building occupants must take responsibility for ensuring any electrical equipment or appliances are in good condition. This includes:

• Electrical wiring, equipment, and appliances
• Gas reticulation systems, equipment, and appliances
• Equipment and appliances fuelled by flammable liquids (e.g. kerosene)

Using open flames

• Fires must not be lit in a building other than in a compliant fireplace or in a properly maintained appliance.
• Appliances that give off open flames, or which are fuelled by a flammable liquid or gas, must not be used in a building unless properly constructed, secured and protected.
• Chimneys must not be used for a smithy, furnace, foundry or similar unless the chimney is compliant and properly constructed for that purpose.

Storing your stock

• Clear all stock away from escape routes.
• Keep stock well away from any heat source.
• Do not stack stock or rubbish so high that it obstructs equipment such as sprinklers or fire detection systems.
• Locate rubbish bins away from buildings, e.g. at the rear of a car park.
• Clearly label containers for waste and hazardous substances like flammable liquids, paint rags or oily rags.
• Ensure all electrical appliances, leads and power sources are fit for purpose and regularly tested.

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There are laws you need to comply with when you're building — whether you're hiring a builder or doing the work yourself.
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Building the house yourself
If you want to build your own house and you’re not a licensed builder, you have to get an ‘owner-builder exemption’. 
Owner-builder exemption 
Getting a builder for your home
Choose architects, project management, a builder and work out what consents you'll need.
Building on an empty section is more complex than altering or renovating an existing house. It involves more paperwork and legal processes — whether you build from scratch or move a house onto the section.
Buying a section
Find out about:

• land use restrictions
• district plan rules
• resource consents
• land surveys.

Buying a section and preparing to build on it 

Building your home
Find out about:

• organising consents
• monitoring construction
• making progress payments
• approving variations
• organising inspections.

Stages of the building process 

Last Updated
Page last updated: 25 January 2018

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Ministry of Business, Innovation and Employment
Hikina Whakatutuki
​
They play a central role in shaping and delivering a strong economy by delivering policy, services, advice and regulation to support business growth.
They:

• build trusted, competitive and effectively regulated markets
• ensure that businesses have access to the skills they need and that current and future demand for skills is met
• ensure safe and fair workplaces
• develop and support high-performing science and innovation
• lift firms’ capability — including ideas, access to capital and relationships — so that they can succeed internationally
• support the development of efficient infrastructure
• enhance the value of NZ's natural resources
• lead work to improve housing affordability, and provide employment, residential tenancy, and unit titles dispute resolution services.

Ministers

• Hon Phil Twyford, Minister for Housing and Urban Development
• Hon Jenny Salesa, Associate Minister of Housing and Urban Development, Minister for Building and Construction
• Hon Iain Lees-Galloway, Minister for ACC, Minister for Workplace Relations and Safety
• Hon Clare Curran, Associate Minister for ACC
• Willie Jackson, Minister of Employment
• Hon Dr Megan Woods, Minister of Energy and Resources, Minister of Research, Science and Innovation
• Hon Stuart Nash, Minister for Small Business
• Hon Kelvin Davis, Minister of Tourism
• Hon David Parker, Minister for Economic Development

Manager

• Carolyn Tremain, Chief Executive

Organisations

• Building Practitioners Board
• Building System Performance
• CERT NZ
• Companies Office
• Consumer Protection
• Electrical Workers Registration Board
• Employment New Zealand
• Immigration Advisers Authority
• Immigration New Zealand
• Insolvency and Trustee Service
• Intellectual Property Office of New Zealand
• Motor Vehicle Traders Register
• New Zealand Petroleum & Minerals
• Personal Property Securities Register
• Radio Spectrum Management
• Registrar of Unions
• Resolution Services
• Standards New Zealand
• State Housing Appeals Authority
• Tenancy Services
• Trading Standards
• Weathertight Services