The electrical for a ceiling fan or lighting can be run on top of the new patio roof deck.
How to install lattice on patio rafters to house roof.
Lay the frames facedown and attach the lattice with 1 inch panhead screws driven through washers.
The maximum overhang is identified on the supplied engineering.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Attach the rafters to the house with joist hangers which supported by ledger boards.
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.
Starting at the house place the first tube in place seam side up.
Install the end caps on both ends of the tubes.
Skylights are simple and straightforward to install as long as the width lines up nicely with the spacing of the rafters.
Attach the horizontal beam by using a nail gun.
Make a cutting on one of the sides of the horizontal roof beam on an angle.
Uniform placement of the lattice tube will overhang equally on each side of the end rafters.
You have to do it thoroughly so that the rafters sit flush on it.
Make sure to check with your local building and safety department for specific code requirements.
Cut the lattice panels down to size using a sabre saw or circular saw.
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.
Attach the rafters to the ledger boards and settle joists.
Place the rafters on 24 centers attach them to the settle joists and beams toward the center.
Using a block of wood as a ruler mark the ends for cutting.
To cut sloping rafters for a house attached patio roof lay a rafter board so it rests on its edge on both the ledger and the beam parallel to the ledger.
Make sure to check the vertical beam to ensure that the end rafters are placed securely.