I am planning to have a small roof over part of my patio, but I'm unsure about the dimensions.
The roof will be 3.55 x 3.1 m
I live in Borås, snow zone 2 or possibly 2.5
The roof is at the gable of the house, so there is likely no snow falling from the house roof.
The roof slope will probably be 10°.
Look at the attached sketch so you can see.
1. Will this hold?
2. Four rafters and 3 posts, will this work?
An upper beam 145x45mm will be screwed to the facade. At the outer edge, a beam 170x45mm rests on three posts 95x95mm.
The rafters are 4 regular timbers 170x45mm with a spacing of 118cm between each.
On top, I will lay battens 45x45mm with a 30cm spacing and a regular plastic roof 1mm thick in PVC on top.
The upper bearing line does not have to be 145, how well you screw it in is more important than the dimension.
For the battens, I would use 45*70. The roof rafters are 170*45.
