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Technical Guidance

Flat Roof Insulation

The ideal time to install flat roof insulation is when your roof covering needs renewing. However, you don’t have to wait as there may be grants and loans available that make every time a good time.

Costs and Benefits

The cost of the measure depends on the size of your roof. A typical extension will cost about £2,000-£3,000. With normal weather and standard occupancy, you should get your money back in less than 10 years*.

Materials and Guarantee

All insulation done by ecologic-energy uses materials approved by the BBA, the UK’s body responsible for testing and approving materials. ecologic-energy is also accredited by the BBA as a PAS2030 installer.


Installation for a typical home takes less than 3 days. Watch the short video for details of how it is done. We use a similar product to the one shown, but this New Zealand video explains the installation method clearly.

*Figures from the independent advice site, Energy Saving Trust.

Grants and Loans