New Roof Insulation Regulations

Chimney flues roofing etc.

New roof insulation regulations.

Cold deck the thickness of insulation required will vary depending on the material you decide to use and the manufacturer s specification. New zealand standard nzs 4246. These are expressed as a u value which needs to be achieved. Your roof type flat or pitched its structure depth of the rafters your willingness to invest.

How to meet the current insulation regulations. The removal or alteration to any roof elements could affect how the roof works and cause movement to occur. The roof covering is then laid over the ply. As a roof is defined as a thermal element the work to re cover a roof should also include for improving the thermal insulation properties of the roof.

New insulation in rental properties needs to meet minimum r values. Movement could cause cracks to occur in the walls and possibly the eventual collapse of. In most cases extra investment made in beating the building regulations on insulation is money well spent it gives a lot back in returns. R values are a measure of resistance to heat flow.

The minimum r value depends on which part of the country the property is in. Insulation is measured by r value. Insulating a roof is perhaps the easiest of all the energy saving home improvements. 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.