ᐅ Attach the purlin of the patio roof to the rafters of the main roof
Created on: 10 Jan 2025 10:13
S
Starkindustrie
Hello everyone,
We want to build a patio roof, but the “wall” beam should not be attached directly to the house wall. Instead, it will be placed below the gutter of the house roof drainage system. I have already seen several ways to fix the beam there.
One option is special connectors that are screwed onto the rafters, and the beam can then be screwed onto the flange plate (see photo). In my case, this would mostly be hidden by the soffit (no visible rafters).
Another common method I have often seen is screwing the beam from underneath into the rafters (also see photo). Here, I wonder which bolts are used, since the rafter is only 6 cm (2.4 inches) thick.
How have you solved this if you have used this mounting method? The beam itself will also be supported on the left and right by posts so that not all the load is transferred to the house roof structure, although that should not be a problem.
Best regards
We want to build a patio roof, but the “wall” beam should not be attached directly to the house wall. Instead, it will be placed below the gutter of the house roof drainage system. I have already seen several ways to fix the beam there.
One option is special connectors that are screwed onto the rafters, and the beam can then be screwed onto the flange plate (see photo). In my case, this would mostly be hidden by the soffit (no visible rafters).
Another common method I have often seen is screwing the beam from underneath into the rafters (also see photo). Here, I wonder which bolts are used, since the rafter is only 6 cm (2.4 inches) thick.
How have you solved this if you have used this mounting method? The beam itself will also be supported on the left and right by posts so that not all the load is transferred to the house roof structure, although that should not be a problem.
Best regards
S
Singelküche13 Jan 2025 17:58This is how it looks from below, directly screwed through the sub-rafter into the rafters.
The lamps are also installed there, so everything could stay in place.
In your case, it would be made of wood anyway.
You wanted to put supports underneath anyway.
I wouldn’t make any holes in the external thermal insulation composite system (ETICS) either.
The lamps are also installed there, so everything could stay in place.
In your case, it would be made of wood anyway.
You wanted to put supports underneath anyway.
I wouldn’t make any holes in the external thermal insulation composite system (ETICS) either.
S
Starkindustrie14 Jan 2025 08:38Our location falls into wind zone 4 and snow load zone 2.