Secure it with a joist hanger using the hammer and nails.
How toattach roof to concrete wall.
Set the roof truss on each mark.
To install roof flashing to a masonry wall or to a chimney you will need to follow specific instructions to ensure a leak proof seal.
Repeat this step to attach the remaining trusses.
Cinder blocks are a great tool for building garden walls or storage structures in your yard.
The ledger is needed to properly attach the perpendicular roof trusses to the top of the structure.
Measure and mark the location of the roof trusses.
Concrete screws come in 3 16 and 1 4 inch diameter in lengths up to 3 3 4 inches.
Using a 3 8 masonry bit in the hammer drill drill the holes through the wall in the places that you marked.
Secure the ledger by driving a concrete 3 1 2 inch concrete screw into the block.
Both hex head and phillips head styles are available.
The connection between the cmu block and the roof system has to be strong enough to withstand storms with high winds.
Attaching a wood roof to a cinder block building is difficult but possible.
Cmu concrete masonry unit block is an extremely strong form of construction.
When joining new concrete work to old concrete work the joint will always develop a crack and will be a point of expansion and contraction.
Master carpenter hack how do you fix a timber plate to a brick wall.
Set the ledger back on top of the wall.
A ledger is a horizontal board that is attached to the top of the the wall.
Any structure that you build will be more stable when it is set on a solid foundation.
This is an especially critical area as there are plenty of places where leaks can form.
Here are some step by step directions to installing this roof flashing yourself.
Failure to create an attachment point will result in roof failure especially in high winds.
Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger.
There are some requirements that must be taken into account when connecting to wood members.
If the area where you are planning to use the cinder blocks is already covered with a concrete pad you can easily build a cinder block wall right on top of the concrete.
Step 4 drill the holes in the wall.
Often you need to secure a piece of timber to a wall when doing some decking.
Over time this expansion and contraction especially if they occur at different rates due to the sections of concrete being exposed to different temperatures will work the sections apart and the crack will widen.
The holes need to be at least three inches deep into the wall.
They can be used in concrete block and brick.
Step 5 attach the ledger board to the wall.