That brick wall drains, has weeps at its bottom (or damn well should) and will forever weep onto the floor of the addition. That said, the above is only good IF the addition has a concrete floor, no floor or base finishes, and will never be enclosed.
You'll be investing in a lot of hurricane ties before its all over. Roof will need to be designed as a shear plane to handle the twist. Your greatest force is not going to be the gravity load the foundations need to hold UP, but the wind load that the foundations need to hold DOWN. It all need so be engineered because of those winds. Then, use some flat or twist straps to tie the beam through the head joints of the brick and onto the studs of the wall. Structurally, add a couple of footings and posts along the house side of the addition and use a beam, not a ledger. If the structure at THAT end is allowed to move -meaning that it's able to fluctuate up & down- (we don't know how well this original deck was built) then the lateral pull on the ledger board would be much more significant. I don't believe that these would work in a conventionally framed 2x4 wall due to the lack of space & material to bolt them into to.Įither way, the exterior supports at the other end of the roof where it sits above the outermost part of the deck are equally as important (IMO). This would then tie the bolts into the framing of the home, vs just having the sheathing & blocking do the work. We are talking about a screened in porch & not a finished space, right?īeing that said, I would institute use of Simpson HD?A hold downs on the interior bolts & through bolt them into the floor joists. IMO.I'm not an engineer by any sorts.but I would consider dropping the height of the roof to the 2nd floor & I would be able to access the bolting area inside the 2nd floor rim joist.
Most likely if you were to subject the bolts to that kind of torque, wouldn't the sheathing pull towards the brick & not vice- verse? I'm assuming that there isn't any way you would be able to tighten the bolts to the point that you would collapse the brick against the sheathing behind. Re: attaching ledger board to brick veneer home
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