Rebuilding Roof Trusses

Although one of the strongest roofing methods to date uses trusses a broken roof truss can cause great damage to a building and could result in a collapsed roof.

Rebuilding roof trusses.

Your top chords can protrude beyond the bottom chord anywhere from 1 3 feet 0 30 0 91 m. This will be the rafters length. On some roof trusses the 2 top chords extend down over the edges of the bottom chord creating a built in overhang. Sometimes structural screws are also used for truss repairs.

Inspect and assess the damaged section of timber and determine where it needs to be cut to prop the timber along it s length using suitably sturdy props such as acro props once supported cut off the damaged end leaving only solid un damaged timber now. The cost of repairs depends on the amount of structural damage and materials required to repair it. To reinforce the ends of the trusses 3 4 inch plywood gussets were to be attached to both sides of each truss with 10d nails 3 inches on center on all chords. Cut it to the length you require and add the plumb cut to its ends.

Click here to get free fast bids from local structural engineers who can help you modify your trusses. If you think you d prefer an overhang style truss adjust the measurements for your top chords accordingly. You can modify the trusses but it s an enormous amount of work. If your roof has a.

Roof trusses are triangular timber frames which are nailed pegged or bolted together in order to create a supporting structure for your actual roof and although they are generally bought pre fabricated you can still easily fix them once they. This is why regular truss maintenance and repair is pertinent to the health of your roof. Repairing a roof truss often requires replacing or reinforcing wood in its construction. The trusses needed to be lifted to their original height and cut flush with the inside face of the cmu wall with the rotted sections removed.

When using nails to joint truss members it is also necessary to use lumber plywood or oriented strand board osb to join the members. Also if you decide to do this you must work hand in hand with a licensed structural engineer that s familiar with wood trusses. Measure the width of your roof trusses from inside to inside. Measure in from the lower edge of the roof to a point 1 4 the width of the truss on either side of the attic.

For typical roof trusses used in light frame construction bolts are usually not used because of spacing requirements. Begin by determining the measurements of the roof s slope. Generally a roof truss is composed of triangular shapes for proper support of the roof. The basics of the process are as follows.

How to build roof trusses for a shed step 1.