Hold Tin Roof Overhang Together

In many cases it makes sense to remove an old or dilapidated roof and install a metal roof that is better able to withstand the elements.

Hold tin roof overhang together.

Drive one 2 inch self tapping metal roofing screw through both sides of the metal ridge cap into the roofing material. From the eaves to the peak it s 10 feet high that s the rise. Continue adding panels until the roof is covered. The good news is that there are many different solutions in terms of installing metal roofing panels including tin aluminum and steel.

It has a 1 4 pitch. If there is also a beam in the middle of the roof divide the total load by three. We began by tearing off the shingles and removing a skylight from the shed roof. You may need to cut panels to fit angles using a circular saw with a metal saw blade.

Figure 10 40 and reduce that to 1 4. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. If you are building trusses it is easy to make part of the roof into a cantilevered extension. A cantilever is any structure such as a roof or floor overhang that is braced internally.

The porch joined the house at right angles to a shed roof section. If one side of the roof is supported by the house and the other side is supported by the beam divide the total load by two as the beam is only supporting half of the roof. Just make one of the rafter members extend beyond the cross tie. Tin flashing typically comes in 6 8 ft 1 8 2 4 m sheets.

Measure the walls and guesstimate overhang lengths to get an approximate total. Say your house is 38 feet wide and the gable roof has a 1 foot overhang on each side. Each screw should be positioned 1 2 inch above the edge of the ridge cap and should be driven until the neoprene gasket on the screw begins to spread out from beneath the metal washer. On gable ends hold a tape measure at the approximate roof angle at the halfway point of the wall directly under the peak to get lengths for gable trim.

Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. If your roof is strong enough it can extend beyond the support walls without external bracing. That makes the roof s span 40 feet. If our example roof has only one beam it must carry half of the total load or 4 000 pounds.

A typical metal roof overhang may be 2 to 4 inches or even less. To make the flashing easier to work with on your roof use tin snips to cut the pieces into 3 4 ft 0 91 1 22 m portions. We designed the porch with wide overhangs for shade from the hot north carolina summer sun. Metal roofing is also available in the form of shingles.

My business partner and i recently added a large screened in porch with a gable roof onto a client s home. How to install metal roofing over shingles.