Start at the bottom of the roofline and work up so any water that gets through the roofing material will shed down the tar paper and will not go under it.
How to lay a felt shingle roof.
Cut six inches off the length of the first starter shingle nailed on then use the rest of them full size.
Snap a horizontal chalk line over the starting row to use as a guide.
Using your staple gun secure the felt to the roof.
The shingles are fixed to the roof boards or insulation boards if you have chosen the roof insulation option with clout nails.
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The roofing felt should be applied in layers that overlap.
First row starting at the bottom edge of the roof prepare a starter strip to go along the eaves by cutting the flaps shingles off the strip.
If you live in an area with inclement weather you should consider using a special ice and water protector.
You can cover the surface of the felt with gravel for added strength.
Apply another layer of adhesive to the top for maximum waterproofing.
3 shingles make up each 1 metre shingle strip.
Cover the edges of the roof with strips of felt before laying out the final layer.
Lay the first row of shingles directly covering the narrow starter row.
Tack it in place at the corner with the end flush with the end of the roof and the bottom edge of the roll right along the bottom of the roof.
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Start the roof felt at one bottom corner of the roof.
Overlap each row at least 3 to 4 inches.
You will follow the same process as in step 2 for the last layer.