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