Recent content by Dugbert

Thanks Chunky. Whoops. I'm such a doofus! I used the span tables to build the floor but didn't think to use them for the roof as there is so little weight on it (comparatively). It was only after a bottle of red that I was staring at the ceiling and it dawned on me that the joists are very thin...

I've just built a timber garden room inside a big workshop. I have used 3x2 for the ceiling joists on 400mm centres. I have constructed a 'warm' roof consisting of 9mm osb on top of the joists then 60mm PIR then another layer of 9mm osb (no felt or epdm, just a tarp). There is nothing on the...