New Roof Insulation Regulations

You are replacing repairing more than 25 per cent of the roof area in which case the roof thermal insulation would normally have to be improved.

New roof insulation regulations.

In most cases extra investment made in beating the building regulations on insulation is money well spent it gives a lot back in returns. The removal or alteration to any roof elements could affect how the roof works and cause movement to occur. R values are a measure of resistance to heat flow. How to meet the current insulation regulations.

New zealand standard nzs 4246. The minimum r value depends on which part of the country the property is in. Movement could cause cracks to occur in the walls and possibly the eventual collapse of. Work to an existing roof.

Insulating a roof is perhaps the easiest of all the energy saving home improvements. Cold deck the thickness of insulation required will vary depending on the material you decide to use and the manufacturer s specification. Insulation is measured by r value. The roof covering is then laid over the ply.

Your roof type flat or pitched its structure depth of the rafters your willingness to invest. New insulation in rental properties needs to meet minimum r values. Chimney flues roofing etc. Building regulations standards set the levels of thermal insulation required when carrying out building work either for new build or refurbishment projects.