If you are tying the roof directly to a house wall you can install a ledger board with flashing and install rafter ties to attach the rafters at the appropriate angles or use engineered trusses.
Roof ledger board attachment.
That usually is done with a header or ledger board secured to the house.
The complexity of the job will vary with the size of roof from a simple entryway covering to one over a large screened in area.
Place the rafters on 24 centers attach them to the settle joists and beams toward the center.
Not designed for snow regions the ledger board can create a snow dam that puts undue stress on the ledger board.
Attaching rafters beams when building a patio roof it can be tricky to build the post and beam structures that support the rafters.
This is a time consuming process and should be done while the house is being constructed to simplify the process and reduce costs.
If you are going to use shingles to cover the patio roof do not forget to install black roofing felt along with a single layer of oriented strand board.
Five ledger board techniques explained and illustrated.
Properly installing a ledger board for your deck is one of the most important structural components of building a safe and strong deck.
Attach the rafters to the ledger boards and settle joists.
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.
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.
A common element in adding porch roofs is fastening one end to the house either to a wall or to a roof.
Attach the rafters to the house with joist hangers which supported by ledger boards.
Make sure to check the vertical beam to ensure that the end rafters are placed securely.
The opposite side of the porch roof will be supported by a header beam that is installed parallel to the house on top of 6x6 support posts.
Any one of these five ledger connection methods properly installed will give you a reliable long lasting deck that is secure.
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.
Allows more patio roof height this is especially true on many track homes built on a slab which generally have a short wall height that makes attaching to the wall not a viable option.
These 18 articles will teach you how to install flashing and bolt the ledger connection to the house rim.