Do insulated roller shutters save energy?
How insulated laths, seals and high-speed doors reduce heat loss through large openings, and how to compare products.
Insulated shutters use double-skin laths filled with foam. The foam slows heat passing through the curtain, and seals at the guides, head and bottom rail cut draughts around it.
Last updated 13 October 2026 by the Security Shutters UK team
How much difference does it make?
It depends on the size of the opening, how long it stands open and how warm the building is kept. A large door that is closed for long periods on a heated unit benefits most. A door that is open all day loses heat through the opening whatever the curtain.
What else reduces heat loss at a busy door?
Where a door opens many times a day, a high-speed door inside the roller shutter shortens the time the opening is open. Good seals and a well-adjusted bottom rail also matter.
- Insulated double-skin laths
- Brush and rubber seals all round
- High-speed doors on busy openings
- Controls that close the door promptly
How do I compare products?
Manufacturers publish thermal performance figures for their insulated curtains. Compare like for like at the same size, and remember that seals and fitting quality affect real-world performance. We include the figures with your quote.
Sources
This guide is general information, not legal advice. Rules can change, so check with your council, insurer or fire risk assessor where it matters.