Framing A Metal Roof

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.

Framing a metal roof.

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. Install the roofing screws vertically along each rib in the panel. 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. Metal roofing is a good choice for snowy climates.

The rise or height of the roof at its peak is the altitude of the triangle. Move it when needed to stay in the shade. The run or half the building span is the base of the triangle. A 2 nominal lumber thickness provides the maximum pullout values for both screws and nails when the fasteners penetrate a minimum of 1 into the wood.

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. 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. I cut rafters out of 2x8s frame this pole barn lean to. If you ve wondered how to frame a lean to roof off a pole barn this video will show you how i did it.

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. 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. Shed roof framing with common rafters.

Darker colors attract solar gain and heat so helps shed snow more quickly. Enjoy your outdoor space by building this gazebo. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Remove any nails sticking out and reposition any metal gutters so that water flows properly off the roof. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. 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. A metal roof must also allow for some overlap on each side of the panels which will reduce the effective width of the panel.