First snap a line for the top of the.
Starting roof shingles.
Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap.
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Pattern curling and shadowing color blending.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
This should leave you with about 1 2 of the shingle left.
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.
Both step shingling and racking will yield a watertight roof.
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Install a starter strip.
Stagger each course to achieve the half pattern.
Consider four and five.
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For pricing and availability.
Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across.
Since the starter shingles will be covered by the roof shingles it doesn t matter what color they are except in special situations see below.
If possible have the shingles delivered via a boom directly onto the roof.
Using alternate patterns 1.
Starter shingles are the initial shingle products installed on the roof just before the first course of the finish shingles which will comprise the visible parts of the roof.
Using a utility knife cut them off at the bottom of the adhesive strip.
Following the manufacturer s directions.
All the other patterns work in essentially the same way offsetting.
Snap horizontal chalklines to help you keep the courses straight.
You ll get the most life out of your shingles and your roof by laying them in a smart.
You won t void your warranty by going with the racking method but with some manufacturers you d have trouble collecting a settlement on two specific problems.
Understand the basic patterns.
Starting at the bottom of the roof map out a guideline with chalk.
How to do it prep work space.
After completing a column the roofer can go back down to the eave edge of the roof and start laying the next column of shingles.
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