How To Frame A Curved Bay Window Roof

Do not use this method to framing bay window roofs.

How to frame a curved bay window roof.

These beautiful looking roofs are made to fit most bay windows manufacturers. First i draw a rectangle centered on the sheet using my 62 by 17 7 8 measurements. Now i have an exact replica of the bay window top. An experienced framer provides the step by step formulas you ll need to lay out the hips for a bay window roof.

Before you can start on the roof you ll have to install the bay window itself. 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. Commonly featuring a window seat bow windows are also typically larger than bays and provide even more space within a room. But before i begin the roof framing i have to add a roof overhang using a strap of soffit material.

Then create the perimeter of the roof using the 2 by 6 sub fascia boards. Plan out the roof. The secret to a good looking roof is having the right proportions. Copper bay window roof.

To get started building the bay window roof frame take a 2 by 6 ledger board and nail it onto the back wall. Installation instructions for the structure of a bay roof window for construction wo. But once the window its frame and its cap are in place you can get started framing the roof. These pre assembled bay windows are built on a wood frame and ready to drop into place onsite.

To frame the irregular hips in a bay window roof you need to know the rules of right triangles and a little trig when faced with cutting a hip rafter at an angle other than 45 degrees it helps to know a little trig. This involves careful planning and thoroughly consulting architectural plans for the window first. What a time saver. A step by step animated guide to installing an ig elements grp bay roof.

First the instructions to find the ridge length is wrong. Roof framer s bible framing a bay window roof page 206 does not follow the holly grail of roof framing trigonometry and geometry. Install the bay window after careful planning. Also a bow window typically has four for five windows while a bay window typically has fewer windows.

Just set it forget it. Then to get the 45 degree angles i measure in 17 7 8 inch from each end and draw the lines. We asked one of our veteran builders to show us how it s done. By strict definition a bow window is curved while bay windows are square or polygonal.

No more waiting for the sheet metal guy to show up. You ll also have to plan for the bay window roof.