How To Install An Asphalt Flat Roof

Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the valley.

How to install an asphalt flat roof. One of the cheapest and simplest methods for creating a waterproof roof is to use asphalt roll roofing although not recommended for house roofing it is ideal for sheds and garages that have a pitch at least 16 percent from horizontal. How to do it attach first course. Plan so that no two butt joints are closer than 2 feet from each other. Although you don t see it your flat roof goes through a lot of wear and tear over time.

The average cost to replace a flat roof on a 1 500 sq ft. If you live in an area with inclement weather you should consider using a special ice and water protector. Overlap each row at least 3 to 4 inches. Nail it in place with roofing nails that penetrate at least 3 4 inch into.

Make sure that the tab of the shingle in the second course will cover it completely. Place the second step flashing piece over the end shingle in the first course by positioning it 143 mm 5 5 8 above the bottom edge of the exposed asphalt shingle. Start by laying asphalt felt or other underlayment over the roof. After removing the old roof you can install a new one with minimal effort using ethylene propylene diene monomer epdm rubber.

Secure the horizontal flange to the roof. So even though flat roofs are ideal for drier landscapes in climates with heavy precipitation a properly installed flat roof can be a fine choice for a homeowner especially thanks to ever improving waterproof materials and installation techniques. Flat roofs are an attractive aesthetic choice that give homes a unique form. Position the first course so it overhangs the drip edges by about 1 4 inch and roll it out a.

Install drip edge and install 9 cant strips of roll roofing material along the rake and eaves edges gable ends and lower roof edge such that the roofing strip overhangs the roof deck by 1 4 to 3 8. Home ranges from 8 000 11 000 depending on the material you use and the complexity of installation. To seal a plumbing vent spread roofing. Installation prices quoted below are for very simple roofs over 1 000 sq.

Nail the roofing strips parallel to the roof edge set in 1 and 8 from the roof edge with nails spaced 4 o.