How To Extend Roof Rafters

For instance if the roof has 2 by 6 rafters and.

How to extend roof rafters.

How to extend rafters determining rafter length. Subtract the width of your ridge beam. Set up scaffolding. Remove the drip edge and the facia trim.

If you are. The ridge beam is the vertical piece of plywood which will form the peak of the gable and to which you ll fasten the rafters on either sides. Lay all tiles within 1 foot of hips ridges and abutting vertical surfaces in roofer s cement. The blocking is held low to hide the roof wall intersection and to provide a 1 inch air space at the top for a ventilation channel.

The two rafters would not have to line up but that would be simpler for installation. Follow safe working procedure falling. Lay 10 or 12 inch tiles with 1 inch head lap on the sides of dormers. 1 or 2 ft.

How to increase rafters for insulation step 1. Attach 1 2 inch wood cleats to both sides of the existing rafter. Use cleats the same length as the width of the. The roof deck is 1x6 attached to the top of the rafters with 1 4 inch space between boards.

These rafters require extra measurement to mesh the hip gable to the ridge beam properly. Then this is not an extension to the rafter but a separate rafter. Measure the width of the ridge beam. If the main rafter is only sticking out a short distance i e.

If the existing rafters have bird s mouth cuts where they sit on the exterior wall plate use. Secure each tile with two large head roofing nails. If you re using a 2x4 it ll measure 1 5 inches 3 8 cm. To get a visual idea of what the new overhang will look like take a photo of the house from.

You need to get up to the area that you are going to extend. You could simply support it on the existing wall and install it without a splice. Strip off the first 3 layers or more of shingles going up the roof the length of the work area. Figure the rafter depth needed to provide the desired r value.