New Portico Framing Into Existing Roof

You have to do it thoroughly so that the rafters sit flush on it.

New portico framing into existing roof.

To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge. 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. Using two inch by four inch studs build a frame for columns that stand from the porch floor to the soon to be built roof. Tying in to an existing gable roof.

When a shed roof ties into an existing roof the new roof could be a simple lean to that covers a deck or porch or it could be the shed roof of a substantial addition. Now take the 4x4 beams and erect them to the perimeter outside the porch about four feet apart. Blind valleys simplify framing. Allowing the siding to contact the shingles will wick or lead water back into the wall.

After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side. After you shingle the roof with step flashing adressing that wall intersection tuch taarpaper under the existing tyvek and over the step falshing then re install the siding trimming it to about an inch above the shingled roof. After that to make it flush with the roof of the existing house cut the two outer rafters. Make a cutting on one of the sides of the horizontal roof beam on an angle.

Then mount new trusses on the new addition walls. Tie into the end of an existing gable roof by removing existing facing boards wall siding and any other obstructions back to the first truss of the old roof. This includes a material cost of 11 to 70 per square foot and 12 to 40 per square foot in labor. First the 4x4 beams need to be cut to the size of the existing roof so the porch roof and the edge of the existing roof will be even when the job is complete.

Butt the first new truss against the old one. Cover the column frame with siding brick or any outdoor material that matches the exterior of your home.