Saturday, January 14, 2012

Easy heat roof cable not melting snow

The heat roof cable control expense and energy use in electric roof cable protection automatically with Roof Sentry.It  requires two conditions to be present before it energizes roof deicing cable: cold temperatures (ON, 38°F; OFF, 48°F) and the presence of runoff water from the roof in contact with its sensor wire. If only one of the conditions exists, the control will not energize the cable.
The  ice melt cable shouldn't be used when there are debris in contact with it. 

Also instead of root heat cables, many users go for tin copper square hating units.
Better than cables is tin/copper looking squares. I see alot of them in our area. They are what look like decorative squares set at the bottom edge of the roof just above the gutters. The idea is that the metal will absorb the suns heat, snow will melt or slide off and not build up so no ice dams can happen.
I know the local historical society chose to put it on their roof cause it was less expensive, less of a fire hazzard than cables. You basically put it on when you do the roof and for get about it, so even if you are out of town when it snows the problem is dealt with. 

Also this incident and trick of one of my user helped him.

One guy I knew in Pennsylvania had serious ice damming problems on his roof, and because of the construction type there wasn't much he could do about it. He rigged a system using a small pump and tubes that would when he turned it on, pump calcium chloride solution out of tubes he attached to the roof. It was a fairly low flow that he could increase or decrease as needed.
It worked amazingly well at keeping his roof free of ice dams because as the snow landed on the roof it never had a chance to accumulate where the calcium chloride was, and the calcium chloride also helped keep the spouting free.

This will help.thanks.

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