It is currently 28 Mar 2024, 21:05
Malc2098 wrote:I think it’s a bit half and half. The wall frames need bracing with the inner skin of the walls.
I think.
Hobbo wrote:I'm looking to use either larch or oak f/e boards. A supplier localish to me stocks different grades of oak- green, air dried, kiln dried. My preference is for oak without painting so it weathers to a natural grey- does anyone have an opinion on which option I should go for, and if bare naked (let's see if that gets through moderation!) oak is a good idea?
If I'm going for 24/6mm f/e boards is my estimate of about 35mm total thickness for the boards once overlapped about right?
thank you.
Hobbo wrote:I would be interested in anyone's opinion-
I'm planning to have open ended rafters instead of soffit and facias, apart from aesthetics and some more protection for that part of the roof, do they add anything more? I'm following Mike G's guide to slight air gap/insect mesh and then cladding with feather edge if that makes any difference.
The roof will be OSB3, membrane and then I'm planning on vertical battens to allow for downward flow of water, counter battens to mount the box profile metal sheets. Do you agree- or is this overkill? I've seen some people screw metal sheets directly onto the membrane covered OSB, and I've read about not having OSB and using the 'sag' method under horizontal battens- I'm not sure if I am keen on either of these other methods but was interested in what anyone else thought?
Mike G wrote:You can't do that with pressed metal sheets. They require horizontal support, so at the very minimum you'll need battens. You should have OSB or ply up there too, both for sound (nightmare in the rain, otherwise), and for safety during construction. What are your rafters spacings?
Mike G wrote:Don't worry about it too much Hobbo. Wind driven rain will quickly find any weakness, and when there is a tin roof over it any leaks through that will be minor, and not wind-driven. For now, tap all your battens down where they cross rafters.
Hobbo wrote:
@woodbloke- gone are the days of felting and tar burns, it's all pvc and glue nowadays!
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