Browse Forums Windows & Doors Re: Low E glass - are you using it, pros and cons 63Oct 21, 2021 3:44 pm alexp79 Should be possible 2-3 times during lifetime. The layer of real timber is usually thick enough for that Its also only 2-3mm thick, some provide thicker up to 5-6mm but cost almost as much as solid timber prices. Standard uninsulated double brick has an R value of around 0.7. An insulated standard 90mm stud timber frame can have an R value of around 2.7. Even if you insulate a… 17 12069 0 2023 4 6201 |