Rebuilding Roof Trusses

For typical roof trusses used in light frame construction bolts are usually not used because of spacing requirements.

Rebuilding roof trusses.

Also if you decide to do this you must work hand in hand with a licensed structural engineer that s familiar with wood trusses. On some roof trusses the 2 top chords extend down over the edges of the bottom chord creating a built in overhang. 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. Cut the rafters from 2x4 piece of wood.

If your roof has a. When using nails to joint truss members it is also necessary to use lumber plywood or oriented strand board osb to join the members. Cut it to the length you require and add the plumb cut to its ends. Your top chords can protrude beyond the bottom chord anywhere from 1 3 feet 0 30 0 91 m.

Begin by determining the measurements of the roof s slope. The cost of repairs depends on the amount of structural damage and materials required to repair it. The basics of the process are as follows. Sometimes structural screws are also used for truss repairs.

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. This is why regular truss maintenance and repair is pertinent to the health of your roof. You can modify the trusses but it s an enormous amount of work. If you think you d prefer an overhang style truss adjust the measurements for your top chords accordingly.

This will be the rafters length. How to build roof trusses for a shed step 1. 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. Use a chalk line to draw a line along the floor parallel to the lower edge of the roof from one end of the attic to the other on both sides.

Measure the width of your roof trusses from inside to inside. Generally a roof truss is composed of triangular shapes for proper support of the roof. Repairing a roof truss often requires replacing or reinforcing wood in its construction. Click here to get free fast bids from local structural engineers who can help you modify your trusses.

The engineer s recommendations were specific.