Summer House Build - Materials Check
Discussion
Hello all.
I've just started building my summer house, and I thought I'd get a materials check from the PH collective before spending quite a few quid at my local (excellent) builders' merchant (CRS in Taunton if anyone is interested).
It will measure 4.8m wide by 3.6m deep. Height at the front will be 2.4m and at the back, 2.2m. (Nearest and only non-fields boundary is 5m away). Base is going to be a 5x4 layout of concrete blocks, all set into concrete footings, and they'l have EPDM offcuts as a water barrier on top.
Current plan is this, comments very welcome:
400mm centres throughout. 4x2 CLS for all joists and noggins, other than the roor joists, which will be 6x2 with 6x2 noggins.
Floor will be either 18mm OSB or 22mm chipboard. Comments on this choice very welcome.
Sides and back will be covered with 11mm OSB, then with a breathable waterproof membrane, then battes, then cladding. I like the look of the rounded face cladding but it's quite expensive. Cladding comments wuld be appreciated too.
Roof will be 18mm OSB, with EPDM stuck on top. That will wrap around and then finished of with some kind of board around the verical edges. It will overhand at the front by about 200mm for visual appeal and downlights. Should I overhang at the sides too? I guess so.
There will be double doors at the front (which I'll either buy or make), some kind of window (yet to be decided) and also a single door at the left rear for easy access to the barbecue area and fridge.
All and any comments would be very welcome, I'm projecting about £5k for the whole job, but that includes a dwarf wall around the patio, and the pation itself, which will be MOT type 1 at 100mm and then 50-60mm of self-binding gravel.
Thanks in advance.
p.s - Can do pictures on a seperate thread if of any interest, but I don't like to assume. It is after all just a load of wood screwed together to make a big waterproof box.
I've just started building my summer house, and I thought I'd get a materials check from the PH collective before spending quite a few quid at my local (excellent) builders' merchant (CRS in Taunton if anyone is interested).
It will measure 4.8m wide by 3.6m deep. Height at the front will be 2.4m and at the back, 2.2m. (Nearest and only non-fields boundary is 5m away). Base is going to be a 5x4 layout of concrete blocks, all set into concrete footings, and they'l have EPDM offcuts as a water barrier on top.
Current plan is this, comments very welcome:
400mm centres throughout. 4x2 CLS for all joists and noggins, other than the roor joists, which will be 6x2 with 6x2 noggins.
Floor will be either 18mm OSB or 22mm chipboard. Comments on this choice very welcome.
Sides and back will be covered with 11mm OSB, then with a breathable waterproof membrane, then battes, then cladding. I like the look of the rounded face cladding but it's quite expensive. Cladding comments wuld be appreciated too.
Roof will be 18mm OSB, with EPDM stuck on top. That will wrap around and then finished of with some kind of board around the verical edges. It will overhand at the front by about 200mm for visual appeal and downlights. Should I overhang at the sides too? I guess so.
There will be double doors at the front (which I'll either buy or make), some kind of window (yet to be decided) and also a single door at the left rear for easy access to the barbecue area and fridge.
All and any comments would be very welcome, I'm projecting about £5k for the whole job, but that includes a dwarf wall around the patio, and the pation itself, which will be MOT type 1 at 100mm and then 50-60mm of self-binding gravel.
Thanks in advance.
p.s - Can do pictures on a seperate thread if of any interest, but I don't like to assume. It is after all just a load of wood screwed together to make a big waterproof box.
I assume you're putting a DPM under it?
You don't mention any insulation.
Do you intend to line the interior?
Is it to be heated?
It's not a trivial space to keep dry.
Breathable materials are good, but tend to work on the pretext that inside is always warmer than outside.
Last year I was looking at rebuilding such a summerhouse at a place we hoped to buy but it fell through.
Proper insulation with PIR might add about £1000, but make the place cheap to heat to a point where the interior could be kept properly dry in winter.
There were a few good threads, including the one about a SIP garden office.
You don't mention any insulation.
Do you intend to line the interior?
Is it to be heated?
It's not a trivial space to keep dry.
Breathable materials are good, but tend to work on the pretext that inside is always warmer than outside.
Last year I was looking at rebuilding such a summerhouse at a place we hoped to buy but it fell through.
Proper insulation with PIR might add about £1000, but make the place cheap to heat to a point where the interior could be kept properly dry in winter.
There were a few good threads, including the one about a SIP garden office.
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