Frame your porch roof by continually adding rafters until it extends one foot past your porch walls or support columns.
Framing rafters into existing roof for a covered porch.
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.
When building a porch roof asphalt shingles or other roofing material are then attached over the roofing paper and drip edge.
Attach the horizontal beam by using a nail gun.
To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.
Once completed roofing paper will be installed.
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.
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.
After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side.
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.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Sheathing 1 2 inch plywood or osb is nailed to the rafters.
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