Hi,
I have built the timber frame of an attached pergola, out of 2x6 timbers, with 100x100 posts, per the design below.
The angle of the rafters is 5 degrees, and I have added two noggins between each pair of rafters.
I want to add a polycarbonate roof and a gutter to run along the cross beam. I will be running roofing battens at 400mm centres under the polycarbonate, and intend to use this stuff for the roof.
https://www.toolstation.com/corrapol-stormproof-sheet/p36591
I would just like to get some advice on how far to overhang the polycarbonate from the crossbeam and where to position the gutter relative to the edge of the polycarbonate.
I have left approx 100mm of overhang at the moment, which I can trim as needed.
Any thoughts would be much appreciated.
I have built the timber frame of an attached pergola, out of 2x6 timbers, with 100x100 posts, per the design below.
The angle of the rafters is 5 degrees, and I have added two noggins between each pair of rafters.
I want to add a polycarbonate roof and a gutter to run along the cross beam. I will be running roofing battens at 400mm centres under the polycarbonate, and intend to use this stuff for the roof.
https://www.toolstation.com/corrapol-stormproof-sheet/p36591
I would just like to get some advice on how far to overhang the polycarbonate from the crossbeam and where to position the gutter relative to the edge of the polycarbonate.
I have left approx 100mm of overhang at the moment, which I can trim as needed.
Any thoughts would be much appreciated.