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- 8 Sep 2004
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I am soon to build a small rear porch (less than 3sqm and hidden behind my 2.9m boundary wall).
I only need to erect an 'L shaped wall' as it abuts an existing extension and will be built level with it.
I will obviously have to prepare a foundation (probably trench fill).
I have never built an external house wall (just garden walls) and I am not sure if I have to use a cavity for an external wall or not. I am pretty happy with the joinery required to build the door, window and roof lights, but the wall is something new to me.
As most of the L shaped "wall" will in fact be the door and window frames, and the longest section of dwarf wall would be less than 1.5m, I was wondering about "getting away" with a solid dwarf wall. What would I gain by doing a cavity wall here - much?
Given that I would have proper foundations, can I just build timber framing all the way to the ground level without any brickwork at all? I presume so. Where does the DPC go in this case, as the wood would be at ground level? (Which is probably why I need a wall of some sort right!?)
Thanks
I only need to erect an 'L shaped wall' as it abuts an existing extension and will be built level with it.
I will obviously have to prepare a foundation (probably trench fill).
I have never built an external house wall (just garden walls) and I am not sure if I have to use a cavity for an external wall or not. I am pretty happy with the joinery required to build the door, window and roof lights, but the wall is something new to me.
As most of the L shaped "wall" will in fact be the door and window frames, and the longest section of dwarf wall would be less than 1.5m, I was wondering about "getting away" with a solid dwarf wall. What would I gain by doing a cavity wall here - much?
Given that I would have proper foundations, can I just build timber framing all the way to the ground level without any brickwork at all? I presume so. Where does the DPC go in this case, as the wood would be at ground level? (Which is probably why I need a wall of some sort right!?)
Thanks