How To Frame A Hip Roof Over A Bay Window

Then use the chart from your online roof frame calculator to cut the rafters to size and nail them into place.

How to frame a hip roof over a bay window. Place the 4 6 common rafters in their designated positions along the 2 longest walls and nail them firmly to the wall with a nail gun. Then use 2 6 sub fascia boards to create the perimeter of the roof. Then create the perimeter of the roof using the 2 by 6 sub fascia boards. Before attaching the plates i draw the center line of each hip on the headboard extending the line all the way to the house.

The first step in the process of erecting the hip roof is to get the ridge beam into place at the top of the roof. To start building the frame of the roof use a 2 by 6 fascia board to create the perimeter of the roof by nailing in onto the back wall. You may also want to install long screws to affix the board even more securely. Unlike a traditional hip roof the roof over a bay window with 45 degree sides is based on an octagonal roof but most people don t know how to frame an octagonal roof.

Fill the frame with some fiberglass batt insulation and close the frame with some plywood. In this video rick arnold shows us his simplified method for laying out and building a bay roof. Attach 4 6 centering rafters and lift the ridge beam into place. To get started building the bay window roof frame take a 2 by 6 ledger board and nail it onto the back wall.

Bisecting the bay angle with a hip shapes the middle roof as a trapezoid and also ensures that the middle roof and the side roofs will be equally pitched. We asked one of our veteran builders to show us how it s done. To fix it even more securely you can drill longer screws.