I have a 16′ by 16′ screen room, covered by a 8/12 pitch gable roof, that I converted to a three seasons room. I just bought a gas fired stove with direct vent pipe components for vertical venting. I plan to put it in a corner, which will put the vent slightly over a foot from the lower edge of the roof. Could someone explain the procedure for lifting / removing the roof shingles and intalling the steep roof flashing?
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From below, drive a nail up through the roof, dead center of where you want the pipe to run.
Then go up on the roof and hold the roof flashing in oplace, centered over the nail protruding.
Now, trace the outline of where the boot ties to the flat portion. Then use the sawsall to cut thru shingles and sheathing in one cut. You would have an oval hole about five inches wide and eight long, I suppose.
You can now slide your flat bar up under the upper shingles within the area the flashing lies. Use it to pop nails there in the shingles. Do it carefully, especially if the shingles are cold since they are more brittle this time of year.
Slide the flashing in so that it has the bottom over the lower shingles and the upper shingles run over it. Have somebody shove the pipe up into it from below while you hold the flashing in place. if everything fits and the pipe is plumb, go ahead and renail.
Put the top hat on the pipe and crawl back down.
Then staart planning how to deal with condensation in this room on cold mornings.
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Thanks so much for the instructions.
Average highs these days are mid-40's; do you think that's too cold to work the shingles?
Once it's in place, where should I be nailing? Should I use any sealer?
Never considered the condensation; thanks for the idea.
Sealer is good, especialy on the side flanges. Keep nails in hidden locations where possible. Temps are marginal, but can do it if carefull. This method causes least impact on them, IMO. If you have to use any exposed nails, dab them over with the sealant. I like Geocel caulk, They have a clear.Condensation in a three season heated room is a common complaint. Try to reduce or limit the amt of moisture introduced to the room because it will find a way to condensate onto cooler surfaces and lead to mildew staining.
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What are temps?
The deck, an artificial product from TimberTech, is about 2 feet above bare ground. The product is tongue and groove, so the floor is tight, except for occasional weep holes in the tongue. Before I hang the lattice, I've been thinking about the possibility of plastic over the ground and insulation (batts or solid) suspended under the deck.
I think Piffin means your daytime temperatures, as regards working the comp shingles without breakage.
Temperatures - asphalt shingles are more flexible when warmer. A hair dryer might help if too brittle on a chilly day. It can also help the caulk stick and keep the fingers from getting brittle.But if your wife ends up with caulking in her hiar from the blow drier, her attitude could become brittle also - so use with care.;)
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Don't forget the "rain collar". Seal it to the pipe just above the roof flashing with clear silicone caulk.
.....................Iron Helix