Every 5 inches make a new mark until you get to the rop of the roof.
Install asphalt shingles roof ridge.
The asphalt shingles that span the ridges of many residential roofs or ridge cap shingles are susceptible to damage from wind uplift and moisture penetration.
Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap.
This is an area of the roof which requires extra care and skill.
The shingle should be in the center of the ridge.
This is a particularly precarious.
Line up the edges with the chalk line and secure with 2 roof nails right above the adhesive line on the shingle tab.
Use the chalk line to snap a straight line vertically every 6 inches.
An aluminum ridge vent has a mushroom shaped profile combined with a wide flange on both sides that sits on top of the roof shingles.
Center a minimum 610 mm 24 wide minimum 28 gauge pre finished galvanized metal valley liner in the valley and fasten with only enough nails to hold it in place nailing at the edges only.
There are a number of key steps you need to take to avoid mucking this part up.
A shingle over vent is installed over the ridge of a roof and is covered over by asphalt shingle caps that match the surrounding roof shingles.
Continue along the ridge of the roof until you have all of the shingles secured.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Repeat this on both sides of the roof.
With new laminated hip and ridge cap shingles finishing a roof installation with a ridge cap is a much simpler process than with the old three tab shingles.
Use sticky back ice and water shield as underlayment where ice dams or leaf and twig dams are likely to build up and at.
To estimate costs for your project.
Nail metal flashing called drip edge along the bottom edge of the roof deck near the gutters.
Create your own price list in homewyse lists for a basic project in zip code 47474 with 125 square feet the cost to install a asphalt shingle roof starts at 3 36 4 42 per square foot.