How To Install A Metal Roof On Trusses

Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

How to install a metal roof on trusses.

A metal roof can easily be installed directly over open rafters. Use adhesives if required to add extra security. Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge. Tin roofing also known as metal roofing is considered more durable than composition or wood shingles.

Workers manually move the first truss to the end of the roof and stand it up positioning it on the corresponding number on the wall plate. Depending on your needs and preferences you can install the roof with or without insulation but in many cases rolled insulation designed for a metal roof is a good idea. Install all the trusses in a similar manner with perfect nailing. Attach the roof truss to the frame every two feet.

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. Mark all the bracing locations as per the drawing. Space the screws about 12 in 30 cm apart down the entire piece of metal. Use galvanized deck screws that are three inches long.

The building codes will determine the amount of overhang you need based on the size of the roof. Lift the assembled truss using a crane with suitable lifting belts lift it through the crane and place it at the actual fixing location do a full weld at connections and recheck for correct alignment. Take care the first piece is aligned precisely perpendicular square to the edge. Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm.

Once in place the workers nail the truss to the wall. Corrugated metal panels are relatively lightweight and can be purchased to fit almost any situation. If you are installing the trusses with hand then it is very much important use effective tools to join all members perfectly. The roofing is manufactured in panels that.

Now when you are done with construction of roof trusses the only thing that you have to do is to take them to the roof safely. Installing wood stripping under a tin roof. Close or seal off the ends with a wood or plastic strip under the panel at each end. Use washer head screws to secure all of the joints of steel trusses and keep a spacing of about 12 inches between screws.

Place the assembled on the frame of the roof using the level make sure it is straight and even. These will stop the entry of rain wind and pests.