Garage Roof Rafter Replacement

While a roofing contractor would perhaps have proposed a complete tear down of the roof replacing it with straight modern size rafters the owner preferred to keep the roof sheathing in place and to straighten the roof by applying force from below while adding additional framing members.

Garage roof rafter replacement.

In face you won t be replacing the rafter but adding a support on the side along its length a process known as sistering. How to replace the rafters without removing the roof step 1. Measure the dimensions of the old rafters beneath your roofing surface. Cut a replacement piece from pressure treated lumber.

This can seem like a huge job but in fact it s not too difficult. In this video i show you how to easy replace a rafter tail. Use your tape measure to record the. Subscribe for more videos.

If you need rafters that are 20 1 or longer you will need an lvl laminated veneer lumber engineered rafter board which is this yellow color. Cut off the rotted rafter tail with a reciprocating saw. Slide one of the newly cut rafter legs into position directly next to the old rafter. Note that a squirrel had built a large nest above the soffit shown here.

Repeat with the other side. Cut a piece of 1 by pressure treated lumber that is longer than the replacement board by 4 to 6 inches. Hope you like this video please share it if you like it. When you have a problem with a roof rafter in the garage it s important that you immediately take care of it to keep the roof secure.

Rafter spacing and roof length will be used to determine quantity of rafters needed for your project. Cut a replacement board from 2 by pressure treated lumber that is the same size and width as the rafter tail you just cut using a circular saw. Each side of the iron should be four inches wide with the entire piece being at least two feet long. Drill holes in angle iron to keep the rafter from buckling again you will need to secure it with a piece of 1 2 inch angle iron.

Fit the rafter into place between the boards and screw through the sister boards into the rafter. Rafters longer than 20 feet. This will give some added strength and take care of any cracks in the wood itself. Home improvement stores do not sell pine boards longer than 20 feet.

Be careful not to damage any nearby roof shingles or flashing. Lumber size width 2x8 2x10 or 2x12 boards will be used to estimate cost of each rafter as well as total cost excluding local sales tax. If replacing part of the rafter attach one end of each sister board through the existing rafter. If you are replacing the entire rafter screw down into the wood through the top and bottom joists.