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Question DetailsAsked on 8/20/2016

what is the best place to by extra wide ridge cap. We need it to stop leaking on an existing shed.

Do not need anything fancy...it's just a shed to hold wood and cover a tractor.

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Lot of alternatives - all available at roofing supply places, most at home improvement stores like Lowes/Home Depot and at lumberyards and such:


1) wide ridge cap shingles, from 12-20 inch wide (so 6-10" lies on each side of ridgeline) - typically $2-4/LF depending on width and grade, available in individual shingles and as strips up to about 3-6 feet long.


2) roll ridge vent (to also vent the ridge, through requires putting a slot in the ridge for it to actually vent) - about $3-5/LF, commonly 10-25' long rolls, easy nail-down. Cheaper stuff without baffles (just mesh) not recommended for areas with lots of blowing snow or rain.


3) starter shingle roll - commonly available 12, 16, or 20" wide by 33 to 50 feet long, about $2-3/LF


4) roll granulated roofing, heavier than 3 above, available in 2, 3, 4' widths commonly - 5 or 6 feet wide rarer, about $1/SF - the classic old roll roofing used on sheds. Be sure it is warm - lay out on shed roof in sun for an hour or so, use heatgun on low setting, or preheat indoors then quickly take out and roll out so you don't crack it bending it over the ridge. Can be a bit of a pain to do long lengths with one person - tend to get wrinkles or skewed on nroof if you don't have a second person to pull the end out tight while you nail alopng one edge (about 1/2" back from edge). Go all the way down one edge getting it straight while other person holds it tight and square, then swap sides and work from center out, using hand like a squeegee to flatten it out as you go to the ends. Use a dab of roof mastic under large-head nails to avoid leaks (because nails are exposed) - or use gasketed aluminum greenhouse plastic roofing nails to nail it, though those will come through a bit more on the inside.


5) use conventional tabless shingles cut to the length you want as ridge shingles, put on normal overlapping way - available from about 16-20" single shingle length to 36" or 39-3/8" (US/metric lengths) for normal 2/3 tab shingles, up to 60" long architectural or 4/5/6 tab commercial shingles in a very few areas - usually only from roofing supply houses.

Answered 2 years ago by LCD




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