Framing New Roof Over Existing Roof

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Framing new roof over existing roof.

How much does it cost to frame a new roof. Take careful measurements to determine how many trusses you will need. 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. Tying a roof perpendicular to the existing roof will be another matter.

To fix it you ll need to remove the existing roof. The old shingles are visible inside the framing of the new roof. 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. You ll need to remove the siding where it meets the roof.

Remove the top several levels to. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option. 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. On the gable ends this was pretty easy.

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. 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. You can frame a new roof over the old but it will need to be designed for the span and pitch. Adding a gable roof addition to your house will require one type of framing.

A properly installed layover roof can look and function as well. The average cost of framing a new roof is 16 000. 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. All these factors must be calculated when designing a roof to ensure structural integrity and to satisfy local building codes.

Roofs are framed out of lumber and pieced together in a series of triangles designed to bear the load. First you ll need to determine where your new gable roof will tie into the existing roof. Putting a new roof over a leaking roof won t remove the leaks. When necessary to tie the new rafters into the house framing the workers cut into the old roof to make the secure connections.