If your roof s width is not an even multiple of the shingle s length you will have a partial piece on one end of each row.
Proper roof jack installation.
Make sure to examine each driven nail and test each roof jack before placing any planking on top.
This will help determine how the shingles will lay on the roof width.
You can usually feel sheathing nails which are driven into rafters through the underlayment attach a jack by driving two 16d nails never roofing nails into a rafter.
Prepping installation carefully place a ladder by the side of the roof and make sure that it is stable and.
In this video i show you how to install a lead flashing on a electrical pipe something that every roofer should know.
Secure the new roof jack to the roof decking with roofing nails.
Ideally locate a rafter below the sheathing.
Nail the new shingles down with roofing nails so the nails are covered by the shingle above.
From inside the attic your roofing professional will drive a nail about one third of the way down from the ridge between two rafters to mark the desired spot for installation.
For many people out.
2 if slant deck flashing is used.
All nails need to be carefully driven fully into a roof rafter to ensure a safe installation.
Most asphalt shingles are 3 feet 91 4 centimeters in length.
Roof jacks provide a stable surface to work increasing safety and making it easier to apply roofing.
How to install roof jacks step 1.
Slide a new roof jack sized to fit your vent pipe over the pipe.
It is usually placed on the fourth.
If you were not provided with base flashing you can install step flashing up the side of the chimney.
Re install any jacks that are loose or can shift.
Be careful when placing roofing materials on jacks so they are secure.
Cut roof shingles to fit around the roof jack and insert them under the existing shingles.
Do not stack material more than one layer high.
Add dimensions a and x from table 1 and fig.
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Measure the length of a shingle as it lies across the roof.
Determine placement determine the best place to fasten your first roof jack.
Placing the first roof.
From the roof he will cut a hole the same size as the diameter of the vent.
Determine the depth of the ceiling cavity from the center of the roof opening to the top of the furnace see dimension a in figure 1.
Ensure the chimney s base flashing is in proper order secured to the roof as the manufacturer or mason recommends beneath the shingles.