Floor and roof systems for use with loadbearing structural concrete masonry walls serve three primary functions.
Roof on masonry walls.
They function as diaphragms transmitting lateral wind and seismic loading through the walls to the foundation.
Roof trusses attach to a ledger that is on top of a block wall.
Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger.
And they act to support the walls from out of plane loads.
Solid 11 2 inch 38 mm lumber shall fully support the patch and shall be secured to the existing sheathing with 8.
How to frame a roof against a brick wall roof types.
A ledger is a horizontal board that is attached to the top of the the wall.
A ledger board is a horizontal member that supports the ends of joists or rafters where they meet a.