Extending Roof Rafters

Extending the rafters with the existing roof sheathing in place is doable but you will get better results if you add extensions during a complete reroofing project.

Extending roof rafters.

I have pics that i would like some one to review the rafters were 4 ft and know i exteneded them another 7 ft thanks. 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. Types of rafters examples of most types of rafters are shown in figure 7 3. Was this not detailed in the plans.

14 oct 2008 messages. Local building codes regulate the minimum amount of insulation contractors must install in new homes but existing homes can benefit from roof insulation as well. A pair of rafters is called a couple in home construction rafters are normally made of wood exposed rafters are a feature of some traditional roof styles. Hi i extending my roof rafters and i used 2 1 2 inch bolts and 10 special rafter screws and i would like to see if some one can tell me if they are safe because i need to remove the main wall underneath the old rafters.

They are called common rafters because they are common to all types of roofs and are used as the basis for laying out other types of rafters. At the beam end the rafters are fastened with a 10 inch structural screw through the top of the rafter into the beam. The rafters are integral to the roof s strength. These are framing members that extend at right angles from the plate line to the roof ridge.

The standard residential roof framed with 2 by 6 rafters is an optimal spot for adding insulation because heat escapes through the roof resulting in higher energy costs. The four types are common rafters. Remove them and you may need to consider alternative support and bracing to the existing roof or hips. A rafter is one of a series of sloped structural members such as wooden beams that extend from the ridge or hip to the wall plate downslope perimeter or eave and that are designed to support the roof deck and its associated loads.

The roof deck is 1x6 attached to the top of the rafters with 1 4 inch space between boards. A good estimate for a contractor to do this same roof overhang extension would range from 50 to 85 per running foot. Video sharing camera phone video phone free upload.