How To Build A Flat Roof Pergola. If you re doing the traditional method dig two feet deep and nine inches wide. Choosing a design for the pitched pergola roof step 1.
Drilling and screwing shade battens. In order to attach the purlin on top of the header we had to screw up from the header of the pergola into the purlin. The structure is the same as any traditional pergola and the roof can be pitched or flat just use a natural plant based product to thatch the roof rather than timber colorbond or perspex.
First we attached the horizontal closure strips to the 2 3 boards.
If you re building your pergola in your yard you ll have to. States and towns have zoning laws that restrict certain kinds of construction. Drilling and screwing shade battens. Repeat with all four beams.