When building a porch roof asphalt shingles or other roofing material are then attached over the roofing paper and drip edge.
Framing rafters into existing roof for a covered porch.
If attaching a patio roof to a ledger beneath the eaves does not allow for enough headroom you can set the new patio roof s rafters on the wall s top plate.
After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side.
On a two story house you can usually tie the ledger into a band joist also called a rim joist located between the floors as shown below.
In this video you will learn about figuring the angle for a top cut on porch rafters that are going over another roof surface and also about a useful jig to.
Attach the horizontal beam by using a nail gun.
After that to make it flush with the roof of the existing house cut the two outer rafters.
A fascia board which is a roofing material that helps compensate when there are inevitable inconsistencies in rafter length will mount on the front and on the sides of your porch roof frame.
Once completed roofing paper will be installed.
Sheathing 1 2 inch plywood or osb is nailed to the rafters.
Frame your porch roof by continually adding rafters until it extends one foot past your porch walls or support columns.
Now you can begin assembling the outer rafters and attaching the rafter beam to the edge of the roof of the house.
How to tie a additions roof to existing roof roof additions to existing roofs how to construct a roof from an exsisting shead how to change a roof line how to attach a deck roof to existing roof how to add a roof over porch attache porch roof on house attach shed roof to house adding a roof to screened in porch adding a roof to existing.