Attaching ledger board to brick vennier.
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I want to add a shed roof over my patio that will extend eight feet out and run parrallel 30 feet with my two story exterior brick vennier wall. It will be supported by posts at the outer ends of the shed roof. How can I attched a ledger board on the outside of the brick, but firmly attached to the interior wall framing without crushing the brick vennier and still support the roof load.
Thanks
Replies
It will interest me to read others' replies here. IMO, brick has a high compressive strength and can take the load of the shed roof. Lag bolts and shields or wedge anchors in the mortar joints will draw the ledger tight to the brick so the friction assists in load carrying capacity. However, to protect from lateral pull (the ledger and attached roof pulling away from the house), occasional long lags through the brick into framing would be in order. Don't tighten them to the extent that they pull the brick to the frame.
Pay careful attention to your wall flashing.
play it safe and go with a half-post against the brick, and only tapcon into the mortar joints.
Spheramid Enterprises Architectural Woodworks
Repairs, Remodeling, Restorations.
Independent support is the way to go. The veneer is not designed to be loadbearing. In fact, I remove a couple bricks behind the post so I can bolt through a block into structural framing. You don't want to rely on the brick to resist perpendicular forces. Also need to be very careful not to pull the brick towards the support behind it. Can crack the mortar easily and allow water to enter. A solid masonry wall is another thing entirely.
Seems like somewhere up there he should have a fieze board to cover the top course of brick. Just take it off, block out from the framing and through connect the ledger board to the framing. If he uncovers rafter tails, he can sister to them and add the ledger board in place of the gutter board.
If it is the gable end of the house, use the post as you have suggested.
Dave
I've done that too. Actually better because you don't have to flash around the penetrations into the brick.