How To Install A Metal Roof On Trusses
Once in place the workers nail the truss to the wall.
How to install a metal roof on trusses. Use adhesives if required to add extra security. 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. A metal roof can easily be installed directly over open rafters. 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 the roofing screws vertically along each rib in the panel. These will stop the entry of rain wind and pests. Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge. Installing wood stripping under a tin roof.
Corrugated metal panels are relatively lightweight and can be purchased to fit almost any situation. Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. If you are installing the trusses with hand then it is very much important use effective tools to join all members perfectly. Install all the trusses in a similar manner with perfect nailing.
Use your neoprene washer head screws to secure the metal to the sheathing. 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. Take care the first piece is aligned precisely perpendicular square to the edge. 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.
For this you can use metal gusset plates and attach these with the help of nails and glue. Mark all the bracing locations as per the drawing. Close or seal off the ends with a wood or plastic strip under the panel at each end. The roofing is manufactured in panels that.
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. The building codes will determine the amount of overhang you need based on the size of the roof. Attach the roof truss to the frame every two feet. 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.
Use washer head screws to secure all of the joints of steel trusses and keep a spacing of about 12 inches between screws. Use galvanized deck screws that are three inches long.