molynoox

I think I would be more focussed on the bottom edge / cill if you had to chose where to achieve maximum sealing performance, which rules out the 'I' shape in my view. I personally did the X cut in the membrane and then used Dupont flexwrap all around the frame as well. But I think this was probably overkill Martin

oops, totally forgot about this post thanks for the replies planning officer I spoke to said I need both the cladding and the sheathing to be non-combustible. feels a little like overkill to me but then what do I know damn nice looking workshop Sandy!

some pictures of the stud structure and the wall section:

Hi, I am building a 9 x 4m workshop / garden room I am trying to do it in accordance with building regs and permitted development - one of the regs is regarding fire resistance of buildings which are within 1m of boundary fence. I did speak to building control to talk things through and they seem happy for me to use a cement board (instead of OSB) on the outside as sheathing, thus making my build exempt from building control. There appear to be three options: 1. Fermacell 2. Versapanel 3. Magply I have heard stories about the weight and difficulty cutting these types of materials Questions 1. Which is the most recommended product from those three options or are there others I have missed? 2. Am I mad? - most people (even garden room companies) are using OSB, even on builds which are tight on the boundary (<1m) thanks Martin

just thought I would say a quick hi as a new user to the forum. I am just getting into building/carpentry as a huge career change - I have spent last 20 years sat at a desk doing automotive engineering and it's time for a change. I think I have a reasonable level of foundation knowledge / capability having done lots of home projects but I'm now building myself a large garden room with electrics, bathroom etc in the hope I can use it as a springboard for a new business creating garden buildings I know advertising is not allowed and that's cool so I won't be mentioning business name etc I am hoping to come here and learn from others as I like to do things right or not at all and I am sure there is plenty to learn and many mistakes to make / avoid ? martin