These are expressed as a u value which needs to be achieved.
New roof insulation regulations.
Work to an existing roof.
Your roof type flat or pitched its structure depth of the rafters your willingness to invest.
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.
Insulating a roof is perhaps the easiest of all the energy saving home improvements.
The roof covering is then laid over the ply.
Insulation is measured by r value.
Building regulations standards set the levels of thermal insulation required when carrying out building work either for new build or refurbishment projects.
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.
Movement could cause cracks to occur in the walls and possibly the eventual collapse of.
Chimney flues roofing etc.
The removal or alteration to any roof elements could affect how the roof works and cause movement to occur.
The minimum r value depends on which part of the country the property is in.
New insulation in rental properties needs to meet minimum r values.
Cold deck the thickness of insulation required will vary depending on the material you decide to use and the manufacturer s specification.
In most cases extra investment made in beating the building regulations on insulation is money well spent it gives a lot back in returns.
How to meet the current insulation regulations.