Despite spray foam insulation being a good solution for older roofs and can improve the thermal efficiency of your roof, there is growing concern that it could increase the cost of future re-roofing as the foam bonds tightly with the tiles and is hard to remove.
Before embarking on spray foam, ensure the following:
- Check the system or material has independent technical approval.
- Ensure the quote you obtain includes an external survey and any necessary external repairs using the appropriate scaffold access.
- Compare the total cost of the above with a full roof replacement and consider how much longer your current roof covering is going to last, factoring in the cost of a roof replacement down the line.