Make sure to line up the jack perfectly with the rafter with the bottom butt of the rafter visible at the roof edge.
How to attach roof jacks.
All connections inside the home must be made below the ceiling.
Remove nails take out old roof jack attach new roof jack if you have squirrels in your area there is a good chance the lead roof jacks on your home need to be replaced.
Rg ro furnaces may be used with roof jacks as tall as 170 excepr t g1 056m odesl w hci ha remil eti d ot 1 20.
Step 3 nail the jacks securely.
It actually helps if you have more wooden boards already set up so you can move more freely and add more jacks in a horizontal manner.
Roof jacks provide a stable surface to work increasing safety and making it easier to apply roofing.
You use them in conjunction with 2 by 8 inch boards to construct scaffolding on the roof deck.
How to use roofing jacks.
Roof jacks fit over plumbing vent pipes that protrude through the roof to keep them from leaking.
Roof jacks you may purchase roof jacks sometimes called roof brackets at hardware stores.
Step 2 attach two jacks attach two jacks to the roof by pulling up a tab of one of the shingles sliding the top of the jack under it.
Ideally locate a rafter below the sheathing.
An internal roof jack extension p n 901935 10 p n 903107 18 can be used to increase roof jack height.
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.