Roof Framing Over Existing Roof

The condition of the existing roof is critical.

Roof framing over existing roof.

Inspect the condition of your current roof. 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. On the gable ends this was pretty easy. The roof should be in sound.

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. Position the square at the end of the rafter board with the tongue on your left and facing away from you. 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. Multiple layers of shingles can make it difficult or impossible for the nails to penetrate.

How to increase the pitch by building a roof over an existing roof use premade roof trusses. Add the length of the overhang beyond this mark and. 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. Premade roofing trusses will be easier and take less time than installing a stick built roof.

Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge.