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Rental property Insulation. Rental Insulation

Rental Insulation

Rental Insulation

New rules announced by the government will require landlords to get rental insulation. They must be insulated and have smoke alarms by July 2019.

“The new law will require retrofitting of ceiling and underfloor insulation in rental homes over the next four years,” Dr Smith said in a statement.

180,000 New Zealand homes required rental insulation and 120,000 homes needed smoke alarms.

“The health benefits of this will be reduced hospitalisations from circulatory and respiratory illnesses, reduced pharmaceutical costs, and fewer days off work and school,” Dr Smith said.

The Government said the average cost of retrofitting both ceiling and floor insulation was about $3300.

Officials estimate 180,000 privately tenanted rental properties will require retrofitting of rental insulation in the period up to July 2019.

Click Here to read to full article on New Zealand Herald

I’m a landlord – what can I do to sort my rental insulation?

Safe-R Insulation can help landlords ensure their rental properties comply with the new government regulations.

Safe-R Insulation can assess your rental insulation to help identify the most cost effective insulation options. We have 3 great products to help retrofit most existing homes. These include:

  • CosyWall Insulation – A cost effective and easy to install insulation that’s blown into existing wall cavities and provides great thermal and acoustical benefits.
  • Jet Stream Max Ceiling Insulation – A a soft, granulated mineral wool product that’s blown into your roof cavities. Perfect for most New Zealand rental homes.
    Jet Stream is suitable for all roof types.
  • Warmafloor Insulation – A polyester fibre blanket manufactured specifically for placing between floor joists, against the underside of the floor.

The property i’m renting needs to be insulated

If you think you need rental insulation, the best thing to do is forward them to this page and get them to give us a ring. We can work directly with your landlord to provide the best possible insulation solution to Insulate Rental Property.

Where to insulate your home with wall insulation injected insulation

Existing Lined Wall Cavity Insulation

Existing Lined Wall Cavity Insulation

You don’t need to remove linings to install existing lined wall cavity insulation. These can be insulated by drilling and filling holes through the external or internal lining with either a water repellent dry fibre or wet foam system. With either wall insulation system there are usually three to four 25-30mm holes drilled in the wall, about every 500mm around the building.

Total R-value (installed) of R2.1 -R2.6 is achieved in a typical 90-100mm wall cavity with water repellent dry fibre or R1.0 – R1.5 with wet foam system installed correctly.

Unplastered or unpainted brick veneer cavities should not be insulated with either system, due to the high potential of wind driven rain entering such unsealed cavities.

The ONLY currently available dry, water-repellant, mineral fibre insulation is the formaldehyde-free CosyWall system, which must be installed at the design density to prevent settlement and ensure that the Total R-value is achieved and maintained. With the CosyWall system holes are plugged with filler immediately after the insulation is installed, then sanded, primed and finish coated.

CosyWall water-repellent, dry, mineral fibre system tests indicated no wicking after 30 days and no settlement after six months at the design density. CozyWall insulation prevents potential fire spread in the cavity and reduces noise transmission through the walls.

Wet foam systems are usually manufactured on site from urea formaldehyde chemicals and water, or occasionally urethane foams. Installation of these systems is more complex, which often means long-term that the Total R-values (installed) are considerably less than that stated by suppliers.

The wet foam process requires 25-30 days full home ventilation to aid curing and reduce formaldehyde levels. Ideally, the home should not be occupied during this period. External wall hole plugging should not be completed until full curing is complete and internal wall moisture content is less than 24%. Serious concerns about the suitability of wet foam for existing wall cavities have been raised by Department of Building & Housing (Determination report 2008/35) and BRANZ (reports SR233 and SR234), which are available on their respective websites.


Wet foam holes should be plugged with a glued timber plug, then filled, sanded and primed. Finish painting should be delayed until all moisture introduced with wet foam has evaporated.

Branz report SR233 states 6% perimeter and thickness shrinkage from framing timber as the foam cures – which reduces the manufacturers claimed R2.9 to a Total R-value (installed) of R1.0 – R1.6

Wet foam systems can reduce potential fire spread in the wall cavity (depending on edge gap extent) and act as a cavity noise absorber.

Best Insulation is blown

Best Insulation works

How does the best insulation work?

Safe-R Insulation explains how the best insulation works

Trying to get the best Insulation is very interesting! Not only does it help make your home warmer in the winter, but it also helps keep it cool in the summer.

Heat flows naturally from warmer to cooler spaces. In winter, the heat moves directly from all heated living spaces to the outdoors and adjacent unheated attics, garages, and basements – wherever there is a difference in temperature. During the summer, heat moves from outdoors to the house interior.

To maintain comfort, the heat lost in winter must be replaced by your heating system and the heat gained in summer must be removed by your air conditioner. Insulating ceilings, walls, and floors decreases the heating or cooling needed by providing an effective resistance to the flow of heat.

So how do you get the best insulation?

A simple way to understand how to get the best insulation starts with thinking about an insulated flask or Thermos which helps keep your drinks hot or cold. This works by providing an insulated layer between the drink and the outside air. Getting the best insulation for your home has the same effect helping to keep your interior conditions comfortable all year round.

Uninsulated homes have large gaps or cavities between the exterior and the inside walls. By filling these cavities with the best insulation material the outside air can’t pass through the cavity as easily and it prevents the inside air escaping outside. The best insulation acts as a barrier to the flow of heat. It keeps the heat contained when it’s cold and keeps it out when it’s warm.

There are many insulation products available in a variety of materials which can be used for different applications around the house. Safe-R Insulation provides a range of insulation systems for use in your walls, roofs and floors. Contact us about our range today!

wall insulation to your home

Retrofit Insulation to your home

Why Retrofit Insulation To Your Home

Retrofit insulation to your home and start saving. Heating and cooling account for 50 to 70% of the energy used in the average home. Inadequate insulation and air leakage are leading causes of energy waste in most homes. Retrofit insulation to your home correctly with designed & fitted insulation:

– Insualtion saves money and our nation’s limited energy resources
– Insulation makes your house more comfortable by helping to maintain a uniform temperature throughout the house, and
– Retrofit Insulation makes walls, ceilings, and floors warmer in the winter and cooler in the summer.

Poorly insulated homes are usually cold & damp in bed and service rooms, with occupants crowded over a heater in one area to keep warm. Homes insulated with a full retrofit insulation system use similar amounts of energy to keep your whole home at a healthy, comfortable temperature. And there’s no more waking up to a freezing room. The world health organisation recommends living in temperatures between 18 – 22 degrees Celsius. We spend more than 90% of our time indoors, and for that reason, the indoor environment and its effect on our health are more important than is often assumed.

Many New Zealand homes share a number of features that can lead to health issues. One of the biggest problems is that our houses are simply too cold. This can lead to dampness, mould and respiratory illness. This is a particular issue with older homes, but not all new ones are exempt.

Make sure your home is well insulated. Once the energy savings have paid for the installation cost, energy conserved is money saved – and saving energy will be even more important as continue to increase. A well installed retrofit insulation system is the best investment people nearing retirement can make in their home.

Warm healthy homes start with insulation. Heating a home without complete insulation is like trying to catch water in a sieve. It does not matter how much money you spend on high heating bills, insulation is a major part of the solution to getting a warmer, more energy efficient home. If you are tired of living in a cold or damp home get in touch with us and we are sure to find an insulation solution for your home.

Visit the links below for more information.