FIND THE ANSWERS

Ice dam causing leak in bathroom. Raked snow off roof, still leaking. Can I get water to drain?

Answer this question

  • Ice dam causing leak in bathroom. Raked snow off roof, still leaking. Can I get water to drain?


Answers

Answer #1 | 22/12 2013 09:31
Guest's answer is good and comprehensive, but mixes prevention into solutions. The key problem leading to ice damming is not maintaining a cold roof. But the key to ridding the roof of an existing ice dam (that can't safely be physically removed) is to heat it up. From the inside, pull back insulation, to allow house heat to warm the underside of the roof. Outside, use of ice melting chemical can speed it up; calcium chloride (CaCl on the product bag) will keep working clear down to -25 F, and is quite aggressive compared to other types. Once clear, hose the area off if possible. Inside, refit the insulation, but ensure there's a ventilation gap between it and the underside of the roof, all the way to the vents. If the problem reoccurs even with adequate venting, a roof edge and gutter heat tape system should be installed when weather and budget permits.
Answer #2 | 22/12 2013 09:48
Throw some rock salt or de-icer on it.
Answer #3 | 22/12 2013 17:58
Melt the roof ice with a deicer (melt roof pellets) and drain it to the ground. To avoid this problem to reoccur, check out this article here on how to minimize the impact of ice dams: http://www.miconstruguia.com/en/ice-dams/

Possible answer