We used the formula.
Roof move roof ridge.
2 snap a chalk line on either.
Butt these against the bottom of the old roof s third row and nail into place.
Brace these supports in the centerline of the building.
Ondura 5259 4 in x 39 5 in cellulose fiber asphalt roof panel ridge caps.
Use 1 5 or 1 75 inch roofing nails.
Rip the ridge board to the correct width to meet the rafter widths at the ridge.
No missing shingles no gaps no holes in the roof no soft spots because of water damage.
Shingle a roof over existing shingles save 75 give or take.
Your second row of shingles should be cut to 10 inches wide.
Example 1 a roof by footprint with equal slopes of 30 degrees.
In traditional house framing also called stick framing a basic roof frame consists of opposing pairs of sloping rafters that meet at their top ends at a ridge board or ridge beam.
To shingle on top of existing shingles there are a few things you want to make sure.
Metal sales universal ridge 14 in x 126 in steel roof panel ridge caps.
In this next in a series of diy videos from the roofer chick ami feller learn how to damaged ridge cap on a residential roof.
Create a saddle at the top with the braces the height of the building walls plus rise less the width of the ridge board.
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 this we have to change the height of the right eave using offset from roof base at a negative value.
Hidden in plain sight and often camoflauged by specialty ridge shingles.
Position a ridge board down in the saddles of the supports.
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The top end of each rafter is cut at an angle so that it meets flush with one broadside of the ridge board and the ridge is sandwiched between the rafters.