FREQUENTLY ASKED QUESTIONS

What’s is made from. Spray foam is made from polyurethane, containing substantial recycled plastics. Dues to its exceptional thermal properties and long life it is one of the most eco friendly insulation solutions available

 

Typical depth. For most houses a wall insulation of 100mm (R4.7) and ceiling / roof of 150mm (R6.6) is plenty to make a very warm home. For smaller structures this can be a lot less, For larger homes or commercial you may need to increase this slightly

 

Roofs. Should we insulation on top of the ceiling or under the roof?. We prefer insulation under the roof if possible, This means your thermal envelope encompasses the whole house, so you avoid having a large thermal mass within the envelope, it means any lights and ventilation gear is inside the warm area, so losses are minimised.

 

Lights. Can we cover downlights. Yes technically but there are provisos. Down lights are a major source of heat loss in many homes, and some IC rated lights still required some ventilation via thermally inefficient fluff insulation. For best results use surface mounted lights, or insulation under the roof deck.

 

Maximum depth. We suggest a maximum of 150mm for most uses, beyond that there is essentially no heat transfer through the foam insulation, so it’s more important to focus on bridging and thermal design.

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Wires and Pipes. Spray foam is a poyurathane based foam, and is chemically compatible with common wiring and pipes. We suggest very small gauge wires such as ethernet be wrapped, or taped to a solid surface to prevent heat damage during spraying. Power cables at the outer limits of their capacity need to be rated using the conduit or enclosed rating however this is very rare

VOC’s. Our foam has the Canadian Green Guard Gold certification for the lowest possible emission of organic vapours. See more details in the tech library. During spraying there are some vapours which should not be inhaled, like any sprayed building material.

 

 

Fire. In fires foam performs very well as it does not allow air flow to feed a fire, and will normally self extinguish once a flame source is removed.

On a budget. Can I afford it? The repayment time fro good insulation is getting less and less as energy costs rise. Home buyer are also favouring homes whit good energy ratings.

 

Passive. Should I go fully Passive. Yes certainly, if the budget permits, but remember a true passive house does involved significant compromise and cost, but you can have near passive results for not much more than a regular build.

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Installation time. Usually less then other insulation, however for safety reason we can’t allow other trades inside the building while spraying is in progress