Building Regulations

U-Value Calculations for Tapered Layers

Unlike heat loss through a flat board heat loss through a tapered layer is not consistent and varies across the cross-section size.

A tapered insulation U-value calculation takes into account:

  • Length and rate of fall
  • Hips and Valleys

At Linroc we always carry out a full calculation for each tapered design to ensure compliance with Building Regulations.

Building Regulations

Part L of the Building Regulations lays down target U values for each element of a building including flat roofs, these contribute to compliance with SAP or SBEM.

The current documents can be found here:

https://www.gov.uk/government/publications/conservation-of-fuel-and-power-approved-document-l

At Linroc we carry out full U value calculations for all of our designs, including condensation risk analysis when required.

For any project specific assistance please contact our design team on 01793 764 000

INTERESTED IN OUR SERVICES?

CONTACT LINROC