Prevent Ice Dams On Sloped Shingle
Install de-icing cable in a triangular pattern on your roof with the triangle height 6" above where the eave meets the building wall. Include a a drip loop to direct melt water into the gutter. Complete your heated drain path by installing de-icing cable in the gutters and downspouts.
Products: M.I. cable or S-R cable, DT-AS-50 clips & SB-190 (asphalt), RR or RS clips (slate/cedar shake), RM-25-AL & VHB Pads/Primer (metal gutters), RM-25-CU & solder or VHB Pads/Primer/Shelac (copper gutters) and DSH downspout hangers.
Prevent Ice Dams On Standing Seam Metal
Install de-icing cable in a triangular pattern on your roof with the triangle height 6" above where the eave meets the building wall. Include a a drip loop to direct melt water into the gutter. Complete your heated drain path by installing de-icing cable in the gutters and downspouts.
Products: M.I. cable or S-R cable, RM-25-AL & VHB Pads/Primer (metal roof or gutters), RM-25-CU & solder or VHB Pads/Primer/Shelac (copper roof or gutters), and DSH downspout hangers.
Prevent Ice Dams On Flat Roofs With Internal Drains
Install de-icing cable in an eight loop butterfly pattern around the outside of the internal drain. Include a drip loop to direct melt water into the drain.
Products: M.I. cable or S-R cable, RM-25-AL and VHB Pad on top of a rubber membrane patch, or use the rubber membrane and adhesive as the clip. Please verify the attachment method of the de-icing cable with the roofing manufacture to insure that you are in compliance with the warranty.
Prevent Ice Dams On Flat Roofs With External Drains
Install de-icing cable around the perimeter of the roof with a drip loop to direct melt water into the scupper.
Products: M.I. cable or S-R cable, RM-25-AL and VHB Pad on top of a rubber membrane patch, or use the rubber membrane and adhesive as the clip. Please verify the attachment method of the de-icing cable with the roofing manufacture to insure that you are in compliance with the warranty.




Each cubic foot of snow contains 2 to 3 gallons of water. As the snow melts, the melt water will drain through the path of least resistance. Ice dams occur when the melt water refreezes along the edge of the eave, pools at the base of valleys, etc.