Failure to create an attachment point will result in roof failure especially in high winds.
How to attach roof trusses to a block wall.
Joists sit horizontally on edge on cinder block crawl space foundations or basement walls to support the floors of a home.
Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger.
Roof trusses are prefabricated wooden roof members that combine the rafter and ceiling joists of conventional framing into one structural piece.
A ledger is a horizontal board that is attached to the top of the the wall.
You can use engineered i beam trusses as joists or choose to use 2 by 12.
Although a roof truss may be heavier and more difficult to maneuver onto the top of the building than conventional framing lumber once there it can easily be slid into position and secured.
The ledger is needed to properly attach the perpendicular roof trusses to the top of the structure.
Failure to create an attachment point will result in roof failure especially in high winds.
One possible way is to gain access through the eave area which may be exposed or through the soffit which is the flat surface at the eaves that forms a sort of ceiling where the roof overhangs the.
Aug 8 2016 attaching a wood roof to a cinder block building is difficult but possible.
There are several ways to gain access to the roof to wall connections in masonry houses.
Attaching wood framing members to a brick wall is tricky especially if the framing will support any load as it does when a roof intersects the wall.