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COMMON INSTALLATION QUESTIONS

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 100mm 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.

Building regulations require insulation to be left clear from where pipes pass through the floor. Typically this is a minimum clearance of 100mm.

Insulation can be installed under or over pipe systems that are running through the underfloor or ceiling of a house. 

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.

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.

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 Damp Guard, our 250 micron PVC ground vapour barrier, in addition to other underfloor 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.