Framing A Metal Roof

Enjoy your outdoor space by building this gazebo.

Framing a metal roof.

Shed roof framing with common rafters. A metal roof must also allow for some overlap on each side of the panels which will reduce the effective width of the panel. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Move it when needed to stay in the shade.

Metal roofing is a good choice for snowy climates. To frame a roof start by choosing a roof style like a frame or gabled. First focus on removing the oldest shingles that are sticking out as well as any flashing or vents. To determine how far apart to set rafters measure the width of the metal panel and then the width of the first hill and valley of the panel.

The rise or height of the roof at its peak is the altitude of the triangle. Then gather your measurements by calculating the run rise and length of each rafter segment in feet and the pitch of your roof in inches. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. The substructure to which the metal panels are fastened must be properly spaced and sufficiently thick to provide a roof or wall system able to meet required design loads.

Spacing of furring strips for metal roof when installing a metal roof over an existing roof insulate the spaces between the wood strips with rigid insulation to prevent condensation before. If you ve wondered how to frame a lean to roof off a pole barn this video will show you how i did it. Buy it now at kohl s. Install the roofing screws vertically along each rib in the panel.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Darker colors attract solar gain and heat so helps shed snow more quickly. It s more watertight than shingles distributes snow load better metal lasts longer and it often sheds snow faster so ice snow guards might be needed. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line.

The run or half the building span is the base of the triangle. I cut rafters out of 2x8s frame this pole barn lean to. For those looking for a metal deck roof that is collapsible this gazebo features a metal frame for sturdiness yet is easy to set up and take down. And the line length measurement from the roof peak to the building wall is the hypotenuse.