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What you need to know

If you are looking to insulate a new building, or renovate an existing building, there are U-value requirements in place to ensure the correct amount of insulation is installed. U-value targets are set in place with building regulations. These standards are set out by the government to ensure dwellings are energy efficient.

What is a U-value?

U-value is a measure of heat loss and the rate of heat transfer through a structure. A U-value is calculated by an addition of all the R-values (thermal resistances) that makes up the structure. For example, in a standard flat roof, you would find timber joists & a rubber roof. All the R-values in the structure can impact the U-value in a positive or negative way.
The better thermally the structure is, the lower the U-value.

New Build Target U-values – Domestic – England 2022

Existing Building Target U-values – Domestic – England 2022

These figures are for extending or replacing thermal elements. Examples of this could be a new dormer, or re-roofing.

Informative Guides

Multifoil’s Direct have created useful and informative guides to achieve a variety of U-values. Please see below a link for the most popular guides.

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Why choose Multifoils Direct?

Multifoils Direct are the leading distributor of reflective multifoil insulation products. We offer nationwide next working day delivery on both individual rolls alongside trade pallet deals. 

You will find a variety of how to guides, videos and PDFs to assist insulating your specific project.

We are extremely proud of our 4.8 out of 5 on Trust Pilot, and our helpful time are available 7 days a week for technical and sales support.

Multifoil Insulation products are proven to save on cost, space & installation time.