Framing New Roof Over Existing Roof

The fully adhered membrane wrapped down over the cut back roof deck to tie into the wall water control layer and air control layer photograph 11.

Framing new roof over existing roof.

How to tie a additions roof to existing roof roof designs to attach to existing home how to construct a roof from an exsisting shead how to attach a deck roof to existing roof how to add a roof over porch cost to tie into existing roof attache porch roof on house attach shed roof to house adding a roof to screened in porch adding a roof to existing. Adding a gable roof addition to your house will require one type of framing. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option. One of the keys to over roofing is to tie the air control layer of the roof assembly to the air control layer of the wall assembly.

First you ll need to determine where your new gable roof will tie into the existing roof. Premade roofing trusses will be easier and take less time than installing a stick built roof. Putting a new roof over a leaking roof won t remove the leaks. On the front of the roof edges the original roof deck sheathing was cut back flush with the wall and the fully adhered membrane folded down around the rafter tails to catch the.

Roofs are framed out of lumber and pieced together in a series of triangles designed to bear the load. On the gable ends this was pretty easy. A properly installed layover roof can look and function as well. To fix it you ll need to remove the existing roof.

Take careful measurements to determine how many trusses you will need. Remove the top several levels to. You ll need to remove the siding where it meets the roof. All these factors must be calculated when designing a roof to ensure structural integrity and to satisfy local building codes.

How to increase the pitch by building a roof over an existing roof use premade roof trusses. If you are building a new home putting an addition on an existing home or replacing your roof down to the rafters you will need a new roof frame. The old shingles are visible inside the framing of the new roof. While it might look possible to use the old ceiling joists they would need to be grade checked to make sure they meet the present code.

Tying a roof perpendicular to the existing roof will be another matter. Your roof is soft and spongy feeling if when walking on your roof the majority of it feels soft and spongy you may have some problems with the underlying sheathing of the roof. The average cost of framing a new roof is 16 000. How much does it cost to frame a new roof.