How to Insulate a Flat Roof , Floor , Stud Walls & Calculating U Values

Here’s my 2 cents and insulation guide for a cold flat roof , concrete slab floor , internal stud wall and to find out what type and thickness of insulation you need with the Celotex U-Value calculator below.

Celotex U Value calculator: https://www.celotex.co.uk/technical-services/online-u-value-calculator

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How to Insulate a Flat Roof , Floor , Stud Walls & Calculating U Values

| Green Roofs | 2 Comments
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2 Comments

  • NorcoBeatz

    Hey there. I am renovating an old stone and red brick built house. Not cavity walls. Was wondering what the best way to insulate the interior of the exterior walls. I was going to stud it out like you have done tho do I need a 50 mm gap between the wall and the stud?

  • Chris Embleton

    Hi Matt, how did you attach the batten in the ceiling to the insulation? it looks like it may be screwed? did you screw through the insulation to the roof joists? Cheers Chris.