I’d be careful not to split the bottom chord. Securing the web member to the bottom chord should be adjacent to the end of the closest web member (the isolated web member). (Do not use steel straps because it’s too complicated for me to figure out if the web member will be in tension or compression.) (I’d jack it up to same height as original, NOT higher than original.) I’d use similar 1x4 boards that the builder used and nail them with similar number of nails at each end. Obviously the builder didn’t know or understand basic construction because, 1) minimal garage door header, 2) no window header, 3) truss web members not continuous, etc.Ī simple solution is to GENTLY and SLOWLY jack up the center of each truss and install 2 diagonal web chords at the center of each truss connecting them from the isolated ends of the existing web member up to the peak of the roof. Yes you can fix your roof, but there are many issues you’ll need to address.įirst, you’ll need to understand that trying to “fix” this monster is difficult because the species, grade, size of nails, etc. Leave it as is, strap up drywall, pray to the gods.Jack up the centre, reinforce (as above), and also replace any wood strapping with steel mending plates, hurricane ties, etc.).Jack up the centre of the trusses, then reinforce each bottom chord with a 2x4 that spans the entire width of the garage.Structure to allow for drywall and insulation to be added safely? How can I introduce sufficient strength into the trusses and related What should I do to prevent this from getting worse?

I am concerned that if I just strap up drywall, that I will be applying more load that what the trusses were meant for, inevitably making the problem of sagging and distortion worse. When the previous owner moved out, they removed the junk, and I can see that the problem has corrected itself fairly substantially. The sag is visible from on the apex of the roof from end-to-end (bowed), and between the ends of individual trusses (sagging in the middle). The previous owner mistakenly decided to store various items across the trusses, causing sag. The trusses look like they might have been built on-site, using a variation of queen-post (fan?). The garage is older, perhaps from the 70s? It uses what looks like an early adoption of a truss framed roof. Recently bought a home that came with a double detached garage.

How much weight can a unistrut hold