Insulation of a loft conversion

With a loft conversion can I fix external wall insulation to the dormer of a loft conversion instead of hanging tiles? I’ll then render the polystyrene sheets to match the existing look of the house. Does this go against building regulations?

Asked by Ashish on 2nd Jan 2025
Expert Trade Answers
"Hi all depends on how thick insulation is for builders regulations requirements if changes are made to original drawings etc 👍"
Answered on 2nd Jan 2025 - Member since Nov 2024 - report
"Hi you need to get fire proof insulation for that job. But if you remove the tiles you should be able to install insulation within side the dormer then using exmet sheeting you can render the external walls. I hope this answers your question.cheers Paul."
Answered on 3rd Jan 2025 - Member since Mar 2024 - report
"No it wouldn't go against regulations but I wouldn't recommend this as a long term fix."
Answered on 4th Jan 2025 - Member since May 2024 - report
"Yes, you can insulate externaly and render! I have done two projects with external insulation and silicone render and they have passed building control."
Answered on 2nd Jan 2025 - Member since Dec 2024 - report
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