[header] How to frame a dormer [title] Schedule your project considering that the roof will be wide open and the work may last an entire day. [title] Create a layout that incorporates the details of the project such as slope, headroom and exterior appearance. [title] Purchase your materials, including wood, windows and any other specialty items. 
[substeps] Arrange for delivery of the materials as well as an industrial trash receptacle for the scraps. [title] Acquire a heavy-duty tarp that is large enough to entirely cover the roof.