How To Add Peak To Existing Roof

Make a rafter cutting jig by measuring 12 in.

How to add peak to existing roof.

Continue to measure 2 x 4 s to allow nailing at each truss until you reach the end of your roof and add the additional 6 inches and 1 1 2 inches for that end. Make a simple rafter jig if the slope of your dormer roof is the same as your old roof hold a scrap of plywood against the old roof boards and draw a level line on it. If you re adding to the gable end of the house the side wall that goes up to the roof s peak it s fairly easy to extend the existing roofline over the new space says curt schultz a realtor architect builder in pasadena calif. Along the level line and using a square to draw a perpendicular line up to the roof edge of the board.

After a taking some measurements and doing a bit of ciphering we established that the steepest pitch we could use on the porch roof was 4 in 12. Remove all the shingle caps from the roof ridge from one side of the roof to the other by prying them up with a pry bar and pulling out the nails with a claw hammer. For overhang and 1 1 2 inches for the sub fascia board. That s a simple low cost solution that can tie in well with the main house.

This new roof with a higher pitch can be accomplished with premade roof trusses and typical asphalt shingles. We wanted to make the porch roof as steep as possible while keeping the peak of the roof below the wall to roof intersection at the top of the shed roof. Replacing a roof can be expensive but if a roof contains only a small slope it s possible to raise the roof pitch of a house by building a roof over the old one. Using 2 x 4 s measure 24 inches plus an additional 6 in.