A roof jack will not do you any good without planks of lumber to span them.
How do i use a roof jack.
You can use the dead area with a jack roof.
Then attach the tool into rafter by driving couple of 16d nails.
Cut roof shingles to fit around the roof jack and insert them under the existing shingles.
Ideally you should find the rafter first underneath the sheathing locate by feeling the nails.
Since there are various angles of roofs it is important to use a roofing jack according to the angle or pitch of the roof.
Degrees and safety most roof jacks depend on angles.
Roof jacks provide a stable surface to work increasing safety and making it easier to apply roofing.
Use a hammer to bend the top edge of the soft lead roof jack down into the vent pipe.
You can usually feel sheathing nails which are driven into rafters through the underlayment.
Standard 2 by 10 inch lumber with fit into the channel on most roof jacks and should be available at any lumber yard.
Standard roofs are around 3 12 to 6 12 pitches.
Nail the new shingles down with roofing nails so the nails are covered by the shingle above.
Of course there are old homes which have an outstanding pitch of.
How to use roofing jacks.
How to use the jacks.
Avoid using short pieces as the risk of a length of lumber tipping upward if you should happen to step onto the end of it is greatly increased.
So you will need to place your jacks at least somewhere in the fourth or fifth shingle course.
Make sure that the roof jacks are evenly spaced from each other about 2 feet or so and from the edge of the roof.
Ideally locate a rafter below the sheathing.
Roof jacks make it easier to set roofing and increase safety for you by providing stable surface.
Remember that most shingles can actually be dilapidated and they can easily break.