smart51
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| posted on 17/5/15 at 07:40 PM |
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timber framed garden room - building regs
I've been thinking about building a garden room for the last 12 months and have decided to go ahead. Because it will be less than 15m2 it
won't need to be built to building regs, but I want to anyway. What will I need to do to comply? Do you know of a handy online guide?
I was planning stud partition walls, vapour barrier, air gap and cedar cladding. I like the idea of round walls so perhaps laminated thin ply on the
stud partition over the curves. Or perhaps just planks with edges planed at an angle to make a nice butt joint. What kind of size do the timbers
need to be? As a guide, it will be about the size of a single garage.
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mark chandler
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| posted on 17/5/15 at 08:18 PM |
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As long as it's behind the front wall of the house and 1m meter from the neighbours then just build away within planning regs.
My oak frame shed is 6m x 4m, it did come in massively over budget  allow £500 - £1,000 for decent foundations
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Sam_68
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| posted on 17/5/15 at 09:04 PM |
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For an extension, we would typically use 140x38mm studs with 120mm PIR (Celotex) insulation; vapour barrier (polythene) on the inside; 9mm. OSB
sheathing on the outside, then breather membrane, vertical battens to create a ventilated cavity (+counterbattens if you then want vertically
boarded cladding), then your cedar cladding.
You need to be particularly careful about floor-wall junctions, and the connection of the timber frame structure with your (presumably masonry?)
existing external walls.
U2U me if this is a serious project (sorry, but I really can't afford the time to advise if you're just 'thinking about
it' ) and you require further information beyond that - it's what I do for a living (Design & Technical Director for a timber
frame manufacturer).
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smart51
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| posted on 17/5/15 at 09:14 PM |
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quote:
Originally posted by Sam_68
For an extension, we would typically use 140x38mm studs with 120mm PIR (Celotex) insulation; vapour barrier (polythene) on the inside; 9mm. OSB
sheathing on the outside, then breather membrane, vertical battens to create a ventilated cavity (+counterbattens if you then want vertically
boarded cladding), then your cedar cladding.
You need to be particularly careful about floor-wall junctions, and the connection of the timber frame structure with your (presumably masonry?)
existing external walls.
U2U me if this is a serious project (sorry, but I really can't afford the time to advise if you're just 'thinking about
it' ) and you require further information beyond that - it's what I do for a living (Design & Technical Director for a timber
frame manufacturer).
Thanks for the "recipie". This is what I was thinking of, but with significantly smaller studwork. It will be a posh shed rather than an
extension. If I get the go-ahead from the missus, I might take you up on your offer of getting in touch.
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Sam_68
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| posted on 17/5/15 at 09:21 PM |
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quote:
Originally posted by smart51...This is what I was thinking of, but with significantly smaller studwork.
Smaller studwork (89x38mm) would be fine structurally, but the 140 studs allow you to get a decent thickness of insulation in (and with 120 PIR would
leave a 20mm residual cavity for services, avoiding the need for a separately battened service void).
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