How To Build A Bay Window Flat Roof

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.

How to build a bay window flat roof.

Http www fixmyroof co uk videos and guides bay window roof how to fibreglass a bay roof for links to fibreglass supplies and additional help please visit. Here are the steps involved in framing a bay window roof. Most of the time a bay window will have a. Then create the perimeter of the roof using the 2 by 6 sub fascia boards.

Install the bay window after careful planning. A box bay with a glass roof is known as a garden bay or greenhouse window. A few make 60 degree bays. Most also offer 90 degree box bays.

To get started building the bay window roof frame take a 2 by 6 ledger board and nail it onto the back wall. It s time to finish planning the roof frame. Build the wall cleat. All major window manufacturers offer angled bay windows in both 30 and 45 degree configurations.

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. The secret to a good looking roof is having the right proportions. Although approximately twice the cost of the lead replacement choice slates or tiles will last up to 100 years as long as the window cleaner doesn t break them.

Flat to pitch bay roof conversion a pitched roof for bay windows another option to consider is converting a traditional flat bay roof into a pitched tile or slate bay roof. Plan out the roof. Before you can start on the roof you ll have to install the bay. Then to get the 45 degree angles i measure in 17 7 8 inch from each end and draw the lines.