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Hi guys, I’m building my own garden room for all year round purpose. I wanted the insulate with PIR and add soundproofing on top. But I’m actually starting to doubt whether I need PIR at all! Without the PIR, the wall layers would be (from outside in): - 40 mm tongue and groove timber - 2...

Hi guys, I’m building my own garden room for all year round purpose. I wanted the insulate with PIR and add soundproofing on top. But I’m actually starting to doubt whether I need PIR at all! Without the PIR, the wall layers would be (from outside in): - 40 mm tongue and groove timber - 2...

Thanks man! Very kind and very elaborate. I’m actually starting to doubt whether I need PIR at all, as I’m adding material for sound insulation. Without the PIR, the wall layers would be (from outside in): - 40 mm tongue and groove timber - 2 layers of r14 (3,5 inch) fibreglass - one or two...

Hi everyone, New to the forum, and have taken on the very daunting task of building my own garden room. For insulation I wanted to buy second hand PIR boards from a company called secondsandco.co.uk. Does anyone know if this company is trustworthy and reliable? Also, I wanted to use woodfiber...