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M-SO Message Board » 2004 Attic » Home Fix-it » Archive through February 10, 2004 » Gutters and Leaders frozen solid - Ice piling up on flat roof « Previous Next »

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Mergele
Citizen
Username: Mergele

Post Number: 37
Registered: 7-2003
Posted on Saturday, January 31, 2004 - 10:08 am:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

Would welcome any thoughts: I had a new rubber roof laid down about 6 months ago on the flat roof over my 'Maplewood Room'. All was well until this bout of deep-freeze. Now I've got about 6" of ice piled up where the built-in gutters dump into the downspout and water has started leaking into the walls immediately below. Scott's has taken a look and are recommending that we install 'regular' gutters around the perimeter of the flat roof, but don't yet have a solution for addressing the slight slope of the roof that carries water from the built-in gutters to the existing downspout (adding external gutters and sealing off the leader is just going to result in more ice building up). They're working on a solution, but this doesn't seem to me to be a good approach.

I've seen homes all over town that look like they have the same problem - would appreciate hearing from anybody who's resolved this successfully.
"Cats climb because being ruler of all you survey sucks when all you survey is ankles." -- Unknown
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upondaroof
Citizen
Username: Upondaroof

Post Number: 4
Registered: 4-2003
Posted on Sunday, February 1, 2004 - 1:58 am:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

In order to install a hanging metal gutter, you need to first remove the built-in gutter by cutting it off even with the outside wall. You then install a fascia board. At this point, the fascia and main roof should be meeting. Install rubber membrane over fascia approx 3-4" and onto existing membrane. "Peel and stick" works well here. Install the new gutter by back nailing only and then fabricate and install a metal edging into the gutter and onto the roof membrane. This will carry the water into the gutter. It's important to over bend this edging so that it hugs the roof and gutter back tightly. Apply a bed of mastic (lap caulk for your rubber membrane) between the edgings to prevent water from backing under this edge. Flash the edging to the roof membrane, ("peel & stick" again) and install gutter hangers as needed.
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tjohn
Citizen
Username: Tjohn

Post Number: 2167
Registered: 12-2001


Posted on Sunday, February 1, 2004 - 9:00 am:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

Won't snow melt cables do the job. Place one cable in the gutter and down spout so water can drain off of the roof without freezing. Zig-zag another cable across the roof so that water can run to the gutters without freezing.
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jgberkeley
Supporter
Username: Jgberkeley

Post Number: 3430
Registered: 5-2001
Posted on Sunday, February 1, 2004 - 9:49 am:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

'Snow melt' or 'Ice Wire' cables would work great!
Friday, I purchased the last unit from the Union HD. They likely will not have them for a while.

Orange Valley Hardware,973 676-0900 had them in stock two weeks ago.
Never be afraid to try something new. Remember, amateurs built the ark; professionals built the Titanic.
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Mergele
Citizen
Username: Mergele

Post Number: 38
Registered: 7-2003
Posted on Sunday, February 1, 2004 - 11:56 am:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

Thanks very much for the suggestions.

Ice wire sounds like the way to go at this point - is that generally an electrician/handyman job? I'm not sure how I'd connect that up to the electric service.


"Cats climb because being ruler of all you survey sucks when all you survey is ankles." -- Unknown
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jgberkeley
Supporter
Username: Jgberkeley

Post Number: 3438
Registered: 5-2001
Posted on Sunday, February 1, 2004 - 1:01 pm:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

You use an ext. cord, water sealed connections and plug it into an outlet. Sometimes I screw an adapter into a porch light and plug it in there.

DIY job or if you want a Handy man job.

Call 973 378-5381 if you need help.
Never be afraid to try something new. Remember, amateurs built the ark; professionals built the Titanic.
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tourne
Citizen
Username: Tourne

Post Number: 305
Registered: 1-2003
Posted on Monday, February 2, 2004 - 12:13 am:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

Hm...I have a thought that if the inside of aluminum gutters were painted black, the solar radiation absorbed would provide just enough heat to reduce ice build up. For instance, take a dark colored cookie sheet and place it in a sunny window for 5 minutes and the sheet will heat up to about 130 degrees or more. Black barbecue paint should work if it will stick to aluminum. And if the outside of the downspouts were black, they probably would not freeze up so fast. Not sure how they would look, though. Maybe a summer project?
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jgberkeley
Supporter
Username: Jgberkeley

Post Number: 3439
Registered: 5-2001
Posted on Monday, February 2, 2004 - 5:47 pm:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

Tourne,

Most if not all the Ice Dam jobs I work on are on the shady side of the house. And, the gutter is not the cause of the Ice Dam, rather just in the way and getting ripped off or busted off because of the ice flow off roof.

Oh, my house, I have a dark roof. It does not help my Ice Dam problem.
Never be afraid to try something new. Remember, amateurs built the ark; professionals built the Titanic.
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tourne
Citizen
Username: Tourne

Post Number: 307
Registered: 1-2003
Posted on Monday, February 2, 2004 - 10:41 pm:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

Oh well, scratch that idea.
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jgberkeley
Supporter
Username: Jgberkeley

Post Number: 3442
Registered: 5-2001
Posted on Monday, February 2, 2004 - 10:46 pm:   Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)

Come up with something using mirrors with the last on hooked up to a sun tracking system.

That would help.
Never be afraid to try something new. Remember, amateurs built the ark; professionals built the Titanic.

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