Help and adivce - building a roof
Discussion
Evening all
There's an area of patio in my back garden I want to roof over. I'm thinking a simple car port style roof: a ledger down each side, 4x2 rafters with corrugated UPVC screwed on top (nice and cheap).
The first pic shows the area, and I'd expect the roof to fall away from the house where I'll fix a gutter into the existing down pipe
Fixing a ledger to the house wall is simple enough, but the other side of this space is taken up by my brick garage (part hidden in the pics by plants).
However, I need help with ideas how to fix this side in place. To get the roof level (left to right), the rafter needs to be about the same height as my garage's soffit.
I would rather not disturb the garage's flat roof, so am trying to think of a way to neatly fix a ledger in place at the same height as the soffit.
Can anyone suggest any ideas, or examples where this has been done? Also, any other comments on my plans are welcome too.
Pic 1 - the area I'm intending to cover (note, the timber is sloped uwards because it's resting on the garage roof)
Pic 2 - the section of garage wall where I need to fix the side of my roof - I'll obviously cut back the plants.
thanks
Ian
There's an area of patio in my back garden I want to roof over. I'm thinking a simple car port style roof: a ledger down each side, 4x2 rafters with corrugated UPVC screwed on top (nice and cheap).
The first pic shows the area, and I'd expect the roof to fall away from the house where I'll fix a gutter into the existing down pipe
Fixing a ledger to the house wall is simple enough, but the other side of this space is taken up by my brick garage (part hidden in the pics by plants).
However, I need help with ideas how to fix this side in place. To get the roof level (left to right), the rafter needs to be about the same height as my garage's soffit.
I would rather not disturb the garage's flat roof, so am trying to think of a way to neatly fix a ledger in place at the same height as the soffit.
Can anyone suggest any ideas, or examples where this has been done? Also, any other comments on my plans are welcome too.
Pic 1 - the area I'm intending to cover (note, the timber is sloped uwards because it's resting on the garage roof)
Pic 2 - the section of garage wall where I need to fix the side of my roof - I'll obviously cut back the plants.
thanks
Ian
Thanks for the replies so far. I am looking up the meaning of "portalised"...
TA14 - whilst the 4x2 is resting against the lintel in the pic, I had planned on bolting a length of wood along that wall, which I thought would spread the load across to either side of the window (its a traditional cavity wall built 2002). Do you think this is risky?
The main force I'd been thinking about was weight downwards, from potential snow, the weight of the roof itself and maybe the odd cat from time to time. But when you say wind, are you implying the roof will be subject to sideways force? ie pushing against or pulling away from the house? How would I mitigate this?
I was planning on keeping the roof light-weight- made of clear corrugated uPVC. I guess I don't need 4x2 rafters to keep that in place. The length is around 2.4m and width 3.5m, so not particularly huge imo.
I planned on keeping the roof below the render (ie below the line of black painted bricks) and short of the service pipes too.
Having the roof slope across down onto the garage also occurred to me, but the front of the garage has a ridge which is about the same level as the render, which would screw up the fall.
An alternative could be to use the rear house wall to take a large supporting beam (above the patio door), and then use posts or strong brackets to fix a beam parallel to this from near the service pipes to the garage side.
Then, I could hang rafters from this, avoiding the need to connect directly to either the wall with the window in it or the garage.
The front pipe is a gutter, so I could easily drain the front of the roof into this pipe with the right connector.
My thoughts of some bank holiday DIY'ing are looking a bit further away...
Ian
TA14 - whilst the 4x2 is resting against the lintel in the pic, I had planned on bolting a length of wood along that wall, which I thought would spread the load across to either side of the window (its a traditional cavity wall built 2002). Do you think this is risky?
The main force I'd been thinking about was weight downwards, from potential snow, the weight of the roof itself and maybe the odd cat from time to time. But when you say wind, are you implying the roof will be subject to sideways force? ie pushing against or pulling away from the house? How would I mitigate this?
I was planning on keeping the roof light-weight- made of clear corrugated uPVC. I guess I don't need 4x2 rafters to keep that in place. The length is around 2.4m and width 3.5m, so not particularly huge imo.
I planned on keeping the roof below the render (ie below the line of black painted bricks) and short of the service pipes too.
Having the roof slope across down onto the garage also occurred to me, but the front of the garage has a ridge which is about the same level as the render, which would screw up the fall.
An alternative could be to use the rear house wall to take a large supporting beam (above the patio door), and then use posts or strong brackets to fix a beam parallel to this from near the service pipes to the garage side.
Then, I could hang rafters from this, avoiding the need to connect directly to either the wall with the window in it or the garage.
The front pipe is a gutter, so I could easily drain the front of the roof into this pipe with the right connector.
My thoughts of some bank holiday DIY'ing are looking a bit further away...
Ian
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