Installing Roof Valley Shingles

Install your roof shingles now that you ve conquered the underlayment and drip edge and plotted your course it s time to truly learn how to install roof shingles.

Installing roof valley shingles.

Once you ve done that cut your shingles to size if they re not already. Shingle the other side of the valley the same way. In general the closed cut valley method implies stretching one side of the shingles beyond the valley while those on the other side are trimmed. Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap.

How to shingle a valley with architectural shingles. Stop nailing 6 inches from the center. Roof one side of the valley running the shingles across it. Be mindful of the proper nailing technique so that your nails always hold the top edge of the course beneath it.

Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps. Then begin nailing the shingles to the roof working in rows and starting at the edge of the roof. To install asphalt shingles start by installing underlayment and new flashing on the roof. If you are looking to install shingles you might want to consider the closed cut valley method it is popular because the two roof planes do not need to be shingled at the same time.

To secure the roof valley flashing nail it down carefully. Then starting at the base of the valley center your first piece of flashing in the valley. If necessary trim a part off the adjacent shingle in the course to allow a longer portion to be used. Working your way up and across begin laying your courses.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Install an underlayment centered in the roof valley. Ensure ice and water protector has been installed along the valley first. Do not use a shingle trimmed to less than 25 cm in length to finish a course running into a valley.

Nail the shingles 5 cm back from the chalk line. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic.