Building Regulations

Modern Building Regulations in Britain mean that new builds and conversions need to meet exceedingly stringent insulation values. Also, air pressure leakage tests are an increasing part of modern regulations to make sure that buildings are using the most efficient methods of insulation.

Spray foam insulation can help you satisfy these regulations and ensure that your building meets modern standards. Because our spray foam insulation is applied as a liquid it will seek and seal any gaps and cracks providing a monolithic layer of insulation which eliminates condensation. Spray foam insulation can achieve modern standards even in much older buildings such as barn conversions, and also allows designers to make the most of the space available.

The table below contains some common U-values and the depth of foam needed to achieve these. This table only takes into account the spray foam and not the surrounding structure. Differing substrates contribute differing values towards the overall insulation, and require calculations to work their contribution out. However, below are some common values and the amount of foam needed to achieve them:

U-value required Depth of foam required
0.4 55mm
0.35 65mm
0.3 75mm
0.25 92mm
0.2 115mm
0.16 145mm

When compared to other forms of insulation available, spray foam requires far less depth of insulation to achieve Regulations. Also, the insulation value of spray foam insulation will not deteriorate significantly over time, meaning the building will keep its insulation qualities for years to come.

Here at Roofing Insulation Services we have years of experience dealing with projects where Building Regulations are a priority. If you have any queries regarding our services, or whether we can help with your project, give us a call and see what we can do for you.

We can also offer a full U-value calculation service to all our customers. Using British Standard software we can calculate the exact amount of insulation required for your project, we can also supply these calculations in pdf or printed format for your use.