Recent content by Splin

Hmm, interesting replies. I had a chat with a very helpfull BI at the local council today. He kindly let me take this photo of the relevant tables from his copy of the 4th edition Eurocode 5 book. Eurocode 5 Timber Spans (4th Edition) Tables 6.9 To 6.12 by Splin posted 14 Dec 2017 at 6:16 PM...

Roof design and construction

That's very helpful thank you - I'm happy to go with 47x100. But the problem now is how to convince the building inspector - I can't just tell him that tony1851 said it woud be alright. :D Can someone tell me the maximum spans for 47x100 C16 and C24 rafters @ 600 centres, between 22.5 and 30...

Insulating below is an option but then I lose headroom and I still need to know the minimum allowed timber sizes.

Good question - I didn't mention it because my post was already so long that it is is serious danger of being filed under TL;DR The designer (a building surveyor/ex LA building inspector) copped out by specifying that roof trusses should be designed and supplied by a specific company. At the...

I've read lots here and found it a very helpful site and learnt more than I ever thought I'd want to know about roof design and construction but I've got to the point where I need some help. I'm building an L shaped extension across the rear of my East Midlands house; part is a lean to roof, the...