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Frequently asked questions

  • How much difference will it make?

    This does depend on your home and what insulation it currently has. If you have no insulation, choose the right product and install it correctly it will have a huge impact on you home (most people are really surprised!). If your house is cold and/or damp and your heating bill is high you need it! A well insulated home has proven health, social and financial benefiits. A massive amount of our business is through word of mouth as happy customers spread the good word of how much of a difference it has made.

  • How do I know you will do a good job?

    This does depend on your home and what insulation it currently has. If you have no insulation, choose the right product and install it correctly it will have a huge impact on you home (most people are really surprised!). If your house is cold and/or damp and your heating bill is high you need it! A well insulated home has proven health, social and financial benefiits. A massive amount of our business is through word of mouth as happy customers spread the good word of how much of a difference it has made.

  • How much does it cost?

    This does depend on your home and what insulation it currently has. If you have no insulation, choose the right product and install it correctly it will have a huge impact on you home (most people are really surprised!). If your house is cold and/or damp and your heating bill is high you need it! A well insulated home has proven health, social and financial benefiits. A massive amount of our business is through word of mouth as happy customers spread the good word of how much of a difference it has made.

  • What products do you use?

    This does depend on your home and what insulation it currently has. If you have no insulation, choose the right product and install it correctly it will have a huge impact on you home (most people are really surprised!). If your house is cold and/or damp and your heating bill is high you need it! A well insulated home has proven health, social and financial benefiits. A massive amount of our business is through word of mouth as happy customers spread the good word of how much of a difference it has made.

  • What are the warranties?

    This does depend on your home and what insulation it currently has. If you have no insulation, choose the right product and install it correctly it will have a huge impact on you home (most people are really surprised!). If your house is cold and/or damp and your heating bill is high you need it! A well insulated home has proven health, social and financial benefiits. A massive amount of our business is through word of mouth as happy customers spread the good word of how much of a difference it has made.

Common installation questions

How do you insulate around lighting – down lights and underfloor lights?

Building regulations require insulation to be kept clear of lighting and electrical components.

There has been a lot of publicity around down lights and insulation, with a move towards LED down lights so insulation can be laid over the top of them.

If you have any down light other than LED the bottom line is that if they are covered with insulation they are a fire risk. All non LED downlights need a minimum of 150mm clearance between the outside of the light and the insulation to keep them safe. Yes this does compromise the insulation but it’s better than burning your home down!

If you are looking at LED down light make sure you are getting a product that is CA or IC approved and that the manufacturer specifies that they can have insulation laid over the top of them. In most cases the LED driver needs to be placed on top of the insulation which can be done without any open holes.

 

What are drop downs and how are they insulated? 

A drop down is a vertical surface between your living space and the roof attic area. Often they are the top section of a wardrobe or where there are two different levels of ceilings.

It is important to insulate the drop down to ensure the ceiling insulation system is complete. If the drop down is not insulated it will let the warm air from inside the living space through into the attic area and out through the roof, ultimately compromising the insulation system.

When installing insulation to a drop down there are a number of options depending on the product being used.

Glass wool product such as Pink Batts can be fitted in between the timber framing and will generally stay in place so long as it is fitted snuggly. If the product is wider than 300mm it is recommended to put plastic strapping across to hold the insulation in place.

How do we insulate around plumbing systems?

Building regulations require insulation to be left clear from where pipes pass through the floor. Typically this is a minimum clearance of 150mm.

Insulation can be installed under or over pipe systems that are running through the underfloor or ceiling of a house. We recommend using a spray can or vivid marker to identify where piping is under the insulation.

 

Will it help with mould?

Mould inside your house – Insulation alone will not eliminate mould inside your house as mould can be caused by a number of things including rising damp and internal moisture inside your home. If you have moisture inside your home you may also need to consider an air treatment system.

Mould under your house – If you have rising damp, which is caused by dampness in the ground under the house, you can use a foil insulation, such as Silverzone, which acts as a vapour barrier or use a 250 micron PVC ground sheet in addition to other underfloor insulation.

How long will the installation take?

At The Insulation Warehouse we have teams of experienced installers. They are able to complete most jobs within a day. For every 100 square meters of ceiling or underfloor insulation we would take approx 3 to 4 hours to complete.

 

How low can you access to install insulation?

Ceiling – The Insulation Warehouse has product options that allow insulation to be installed into ceiling where other product cannot be used. The glass wool blow in product, rated at R3.0, is a good option when nothing else will work.

A good guide is a working room of one meter at the apex of the roof as a minimum.

Underfloor – 400mm below the bottom of the joist is a minimum clearance guide for installing under a house.

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About the manufacturer

Pink® Batts® insulation is made by Tasman Insulation New Zealand, the country’s foremost manufacturer and supplier of insulation products.

Our most well-known brand, Pink® Batts® insulation, has been keeping New Zealand homes warm and comfortable since 1961. Over this time, it has become firmly established as New Zealand homeowners’ favourite insulation.

Leading-edge technology

Pink® Batts® insulation is manufactured and marketed in New Zealand by Tasman Insulation New Zealand Limited, using technology licensed from Owens Corning in USA.

Since Owens Corning was founded in 1938, it has been the world’s leading innovator of glass fibre technology, making many major advances in glass fibre technology.

Member of Fletcher Building family

Tasman Insulation New Zealand is part of the Building Products Division of Fletcher Building – part of the New Zealand based, global building industry company. Fletcher Building’s origins in New Zealand date back to 1909, when the original Fletcher company built its first house in Dunedin.


What it is made of

Pink® Batts® insulation is made from glass wool; a thermal and acoustic insulation used around the world in homes, buildings, hospitals, vehicles and white goods.

Pink® Batts® glass wool is made from over 80% recycled glass. This is melted, spun into a fibrous mat and bound together by a resin.

The make-up of Pink® Batts® insulation – glass and sand – means there’s nothing in it to attract insects or vermin.

The manufacturing process is continually assessed to ensure production meets the quality standards. So you can be sure
that Pink® Batts® insulation is made to a very high standard.

Lifetime Warranty

Tasman Insulation has been manufacturing Pink® Batts® products for New Zealanders for 50 years, and every day we work hard to ensure the quality of these products.

This is the first time Tasman have offered a separate warranty on Pink® Batts® insulation products alongside customers’ general protections. This Lifetime Warranty states that Pink® Batts® BRANZ appraised wall and ceiling products will provide high quality insulation for the lifetime of your home.

Installing Pink Batts
Pink Batts Underfloor

Pink® Batts® SnugFloor® is a range of glass wool underfloor products designed to reduce heat loss in new and existing homes with suspended floors and eliminate draughts with exposed floorboards.

Pink Batts Wall

Pink® Batts® wall insulation is light-­weight, flexible, glass wool insulation designed to thermally insulate timber and steel‐framed walls and fit easily in standard wall constructions,or be easily cut to fit in non-­‐standard constructions.

Pink Batts Acoustics

Pink® Batts® Silencer® is glass wool insulation designed  to reduce sound travelling between internal walls.

It is available for 90mm and 75mm internal wall framing

Note: Pink® Batts® Silencer® should not be used in external wall applications. To reduce sound transmissions in exterior wall applications we recommend the use of our Pink® Batts® Ultra® wall range.

Pink Batts Ceiling

Pink® Batts® ceiling insulation is light-­weight, flexible glass wool insulation that thermally insulates ceilings in new homes, can be fitted into existing homes with no insulation or laid over existing insulation.  It fits easily into standard ceiling constructions, or be easily cut to fit in non-­standard constructions.

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About the manufacturer

Cocoon Polyester is manufactured exclusively for The Insulation Warehouse by Autex Industries in Avondale, Auckland.

Established in 1967 Autex is well known for its quality range of polyester products including insulation, carpets and sound solution materials.  Autex also manufactures the Greenstuf range of polyester insulation.

What it is made of

Cocoon is 100% polyester. There are no added binding agents as the fibres are melted together making it a very strong, durable and long lasting material.  The same type of material is used to manufacturer a wide range of products such as duvets, clothing etc.

About 50-60% of the polyester used is reconstituted from waste PET bottles making it an excellent environmental choice.

Product warranties

The product carries a 50 year warranty.  It will not rot, slump, sag or be affected by moisture.  The only reason polyester breaks down is if it exposed to long term sunlight which is very rear in a ceiling or underfloor!

Installing Cocoon

Cocoon Underfloor

Cocoon is a 100% Polyester product that is installed in blanket form across the bottom of your floor joists or up in between the floor joists depending on the application. It is non irritant product that is dust free and won’t cause any skin or allergy reactions. Because of it’s design and composition it won’t slump or sag after installation and it is unaffected by moisture, mould or mildew. Think of it as the big fluffy jersey that keeps the floors warm!

This is a high grade polyester underfloor insulation available in  roll form for retrofitting under floor joists or in pre-cut widths to be fitted between joists. It is designed to well exceed NZ minimum standards. It is a very popular DIY product. The actual product is either R1.8 or R2.6.  The R1.8 product installed as a system provides performance of R2.1 – R2.6 if installed as a blanket.

Cocoon Ceiling

Cocoon ceiling insulation is designed and manufactured with performance and durability in mind. This NZ made insulation comes in 1200mm wide roll and is literally rolled out over the top of ceiling joists like a large blanket. This makes it quick and easy to install. It is excellent to use where there is no existing insulation or as a top-up blanket to boost existing insulation already in place. It is available in R1.6, R1.8, R2.2 R2.9 and R3.2. For higher grades simply double up layers eg R1.8 + R1.8 = R3.6 grades.

The product carries a 50+ year durability rating and is very safe and user friendly to use. No safety gear required!

 

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About the manufacturer

Autex is a New Zealand-based manufacturing and product development company specialising in textiles and advanced fibre technology, supplying a diverse range of consumer, commercial and specialty industrial products to markets all over the world. Established in 1967, Autex is founded on principles of innovation and outstanding customer service and committed to maintaining accredited environmental practices.


What it is made of

Recycled content – GreenStuf® is manufactured using a minimum of 45% recycled PET Plastics, and is also recyclable at the end of it’s life.

Product warranties

Durable – GreenStuf® will not settle or reduce it’s performance over time and is backed by a 50 Year Product Durability Warranty

Installing Greenstuf
Greenstuf Underfloor

GreenStuf® Underfloor is designed to provide thermal insulation under exposed joist floors of new and existing timber-framed buildings.
GreenStuf® Underfloor reduces heat loss through floors and assists in reducing drafts caused through joins in the floorboards.
It comes in a range of thermal performance options and as rolls pre-cut to fit standard exposed timber joist floors.

Greenstuf Wall

Designed for the thermal insulation of timber-framed buildings. They come as insulation segments pre-cut to fit standard timber-framing.

Thermally moulded into shape, they are designed to be self-supporting in walls and ceilings and require no stapling into place.
All eligible R-values of GreenStuf® Pads proudly carry the Environmental Choice
New Zealand tick.

Greenstuf Acoustics

Autex QuietStuf® is a range of quality 100% polyester acoustic insulation products for walls and floors.

QuietStuf® is a soft thermally bonded bulk-fibre insulation material manufactured from polyester fibres.

QuietStuf® SOUND SOLUTION is a non-irritant acoustic insulation material designed for timber stud residential and light commercial applications. QuietStuf® SOUND SOLUTION is supplied as lofted blue-tinted insulation segments and rolls pre-cut to fit standard timber framed walls and mid-floor joist spacings.

Greenstuf Ceiling

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About the manufacturer

Mammoth™ modern insulation is manufactured by InsulPro – a New Zealand owned and operated manufacturer of polyester thermal and acoustic insulation – supplying the local New Zealand market and export markets with a range of insulation products for the home or commercial building.
We have manufacturing facilities in Auckland and Milton, near Dunedin and are backed by a team of experts.

What it is made of

Mammoth is the modern option in home insulation with a soft, friendly-fibre solution that is free of glues, binders, formaldehyde and pesticides.  Mammoth’s 100% polyester insulation uses fibres from recycled plastic bottles and so you’ll be able to feel good in your warmer, healthier home knowing that you’ve reduced the planet’s landfills.

Product warranties

Our product warranty covers that – so long as the insulation is installed correctly and remains adequately protected – Mammoth™ insulation will perform as well as when installed for 50 years.*

Installing Mammoth
Mammoth Underfloor

Mammoth Multi is an insulation product that was designed to make installation easy for busy builders and the do-it-yourselfer and, while perfect for underfloor, it is also suitable for walls and ceilings.

Mammoth also has a polyester staple-in blanket for underfloor.  This product is only recommended for experienced insulation installers.

Mammoth Wall

Semi-rigid polyester insulation that is friction fitted between studs. Mammoth airlay wall sections are self-supporting and contribute to a superior installation without gaps, creases, folds or compression.

Mammoth Ceiling

Ceiling Blanket is the easiest form of ceiling insulation and also the most effective. Like duvets and blankets, also made from polyester, Mammoth Ceiling blanket traps the warmth underneath the blanket to keep your home warmer.

The added benefit of Mammoth Ceiling blankets versus sections of insulation is that it covers the joists and has less joins, ensuring heat is retained inside your home.

Mammoth Ceiling Blanket comes in big rolls, so it’s easy and fast to install. It can be torn to length – or cut with shears – and is simply laid over ceiling framing.

The product range includes R1.8, R2.9, R3.2, R3.6 and 4.0.

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About the manufacturer

Silverzone is manufactured under ISO 9001-2008, ISO 14000, ISO 22000, BRC and HACCP regulations and comply with most international construction codes.

What it is made of

Silverzone is a reflective foil with twin layers of aluminium separated by a layer of air. The foil reflects 97% of heat and deflects the cold temperature down while the layer of bubble keeps these surfaces seperated. It is an extremely effective underfloor insulation with the added benefit of being a vapour barrier at the same time.  Silverzone has a special coating on it’s aluminium surfaces to stop oxidisation and comes with a 15year manufacturers warranty. The scrim reinforcing makes it a lot stronger than traditional building foils.

Product warranties

Silverzone has a 15 year product warranty.

Installing Silverzone

Silverzone Underfloor

Silverzone is stapled to the underside of the joists using plastic staples.  Particular care should be taken when electrical cables are present as there is risk of stapling into the cable and livening the foil sheet, in turn causing electrocution.  We have developed a system which included plastic staples to minimise the risk but the person completing the install must take care to always know what they are stapling into.

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About the manufacturer

As an exclusive brand for The Insulation Warehouse, Chillguard is manufactured by one of Aucklands’ largest expanded polystyrene manufacturer to meet the highest quality standards.

What it is made of

Chillguard is a polystyrene material and is primarily manufactured from virgin materials.  Unfortunately using recycled polystyrene results in an inferior finished product so the amount used is minimal.  It is very important environmentally that a product stands the test of time and does not need to be replaced.

The superior polystyrene moulding process results in a high quality finish, excellent cross breaking and compression strength and high insulation value.

Product warranties

Chillguard polystyrene carries a 50 year durability rating.  It is a very good quality material that is designed to last the life of your home.

Installing Chill Guard

Chill Guard Underfloor

This is a excellent quality polystyrene underfloor insulation designed to be friction fitted between your floor joists and hard up against your floor. Available in two grades R1.5 (60mm thick) and R2.1 (80mm thick).

We have plastic clips available in bags of 200 which are used to staple under the polystyrene sheet, holding them in place.

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About the manufacturer

Borer Basher is made in NZ by Chemsafe Group exclusively for The Insulation Warehouse.

What it is made of

The active ingredient in Borer Basher is 980 grams per kilogram Sodium Borate in a powder form. Sodium Borate is also known as Borax which is a natural substance.

Product warranties

Every reasonable precaution is taken in the manufacture of this product.  However the effectiveness of the product depends in part upon correct methods of application, condition of the timber, and as such, no guarantee can be expressed or implied.  For jobs completed by The Insulation Warehouse a workmanship warranty is provided for a period of 12 months.  This warranty includes the method of application and appropriate coverage of the treated area.

Installing Borer Basher
Borer Basher Underfloor
Borer Basher is applied as a wet spray on product to all exposed wood under the house. All wood should be as dust free as possible prior to applying 2 coats with at least 1 hour drying time in between.
Borer Basher Wall

Borer Basher is applied as a wet spray on product to all exposed wood. All wood should be as dust free as possible prior to applying 2 coats with at least 1 hour drying time in between.

Borer Basher Underfloor

Borer Basher is applied as a wet spray on product to all exposed wood in the ceiling of the house. All wood should be as dust free as possible prior to applying 2 coats with at least 1 hour drying time in between.
As this is a wet spray product there is a chance that the fluid can seep through timber ceilings and this is something that the home owner should take into consideration prior to application.