I’m in the early planning stages of a single storey rear extension on my 3 bed semi. I’m going to be self building, pretty much from the ground up. It’s going to be the full width of the house, so about 6m and 4m out so within permitted development hopefully.
My main hurdle before I get architects/engineers involved is to get the plan straight in my head. I’m fine with a traditional block and brick build, but I can’t seem to shake off the idea of SIPS. Other than internet research and some YouTube vids, I have no practical experience with them. Can anyone advise on what foundations they require? My ground is firm clay, and there is a sewer running under where the extension will sit, which I will be getting buildover permission for. The appeal of potentially no traditional footings and speedy erection (ooo err) is massive! Also, the ubiquitous bi-fold doors will be required, so do they require steelwork above, or just a heavy duty lintel?
Any advice/constructive criticism appreciated
My main hurdle before I get architects/engineers involved is to get the plan straight in my head. I’m fine with a traditional block and brick build, but I can’t seem to shake off the idea of SIPS. Other than internet research and some YouTube vids, I have no practical experience with them. Can anyone advise on what foundations they require? My ground is firm clay, and there is a sewer running under where the extension will sit, which I will be getting buildover permission for. The appeal of potentially no traditional footings and speedy erection (ooo err) is massive! Also, the ubiquitous bi-fold doors will be required, so do they require steelwork above, or just a heavy duty lintel?
Any advice/constructive criticism appreciated