What is the best underfloor insulation in NZ?
Polyester. Polyester insulation has developed into an extremely popular underfloor option. We use the Cocoon brand which has been designed in NZ for older NZ homes. It contains a minimum of 45% recycled polyester made from used PET plastics, like drink bottles, making it a great environmental choice.
Does underfloor insulation make a difference?
Does Underfloor Insulation Make A Difference? Yes, properly installed underfloor insulation makes a significant difference to winter heat loss and summer heat gain in any home. Even if the rest of your home is insulated, the floors can let in air draughts or allow heat to leak out.
Which underfloor insulation is best?
High performance insulation panels or boards are often the best materials to insulate an existing concrete slab floor as they provide the best thermal performance at any given thickness.
Can underfloor insulation cause problems?
What Can Go Wrong With Underfloor Insulation? Worst case scenario you trap moisture from spills or interstitial condensation up against the timbers within hydrophobic insulation and in turn risk rotting the floor joists.
What thickness of insulation do I need for my floor?
The U-value is a measure of how quickly heat will travel through the floor. To achieve this standard, you will normally need at least 70mm of high-performance foam insulation, or 150mm of mineral wool, but this will vary depending on floor type, shape and size.
What is the cheapest way to insulate a floor?
Polyester and fiberglass are the cheapest insulation materials. They also act as acoustic barriers but are poor barriers to rising damp. Aside from price, their main advantage is that they allow a wooden floor to expand and contract during temperature changes, called “breathing”, and avoid buckling and splintering.
How much heat is lost through the floor?
Give or take, about 25% of the heat produced by your boiler will escape through the roof of your home. About 35% of the heat will escape through the walls and through gaps, in and around windows and doors, and about 10% of heat will disappear through the floor.
Does underfloor insulation help with damp?
Correctly installed hygroscopic insulation in an older property’s suspended timber floor will absorb some of the water vapour within the property during periods of high humidity (reducing the risk of condensation and mould on interior surfaces such as walls and ceilings) and release this water vapour slowly when the …