05:49AM | 11/16/00
Member Since: 11/15/00
1 lifetime posts
After 84 straight days of no rain, we are now receiving rain about every other day. Now we have been faced with a small problem - water coming into our utility room through the dryer exhaust pipe from our roof. When we checked, there was nothing covering this exhaust pipe to prevent rain from traveling down. What do we need to purchase for prevent this leakage. Any help would be greatly appreciated!


07:14PM | 11/16/00
Member Since: 09/01/00
312 lifetime posts
Dryer vents normally are not in excess of about eight feet and terminate through a wall to the outside.There,a standard dryer vent with cover is installed.Now that I think about it,I may have seen these on a roof before but it is not too common.You can pick these up at home improvement stores for a few dollars.Install the vent flush with the pitch of the roof and use plenty of caulking or roof cement on the underside which rests on the roof.


04:02AM | 11/17/00
Member Since: 03/13/00
1675 lifetime posts
Most dryer vents have a hinged cover that is supposed to keep stuff outside from coming in. If this is not working, you should replace or repair it. It may be, however, that the leak is around the edges, where the pipe comes out of the roof. If this is the case, seal it with caulk or roof sealer on the outside - just sealing from the inside will allow rain water to get under the shingles and let the roof plywood get wet and rot.
I just copied the following statement from another post. (Some caulk is silicone.)
"never use silicone on asphalt or fiberglass shingles, silicone will damage the shingles, I have seen silicone eat a hole clear through a shingle."

[This message has been edited by rpxlpx (edited November 17, 2000).]


05:10AM | 11/17/00
Member Since: 09/01/00
312 lifetime posts
While silicone based caulk is very common there are others such as asphalt based,Nitrile,Neoprene,polybutane,rubber,etc.To be sure,I would consider roof cement if unsure of the application.
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