Everyone seems to have their own ideas and theories about ice dams. With so much misinformation floating around, it’s important to clear the air and settle a few debates. Here are five ice dam myths that every homeowner should know:
Homeowners falsely believe that a ventilated roof can prevent ice dams. While ventilation is certainly beneficial for a home, there are several things that need to be taken into consideration in order to successfully prevent ice dams, such as the roof layout, air leaks, slop, the size of the airway passages and true insulation values.
Even when these factors are carefully calculated and added into the equation, ice dams may still form. It doesn’t matter how well the ventilation system is designed – just a few inches of snow can impede ventilation.
Here’s what happens when ice dams are left unabated:
The common belief is that the roof must be heated several feet above the eave edge to prevent ice dams, but this is simply not true. The goal instead should be to stop the ice dam from forming at the eave, and that will prevent the dam from proliferating up the entire roof.
Many homeowners have metal edging installed along roof eaves as a way to prevent ice dams, but more often than not, this edging causes other property damage and leaks.
Here’s the issue:
Leaks can become an issue when this occurs, and it also damages the transition between composite shingles and the metal edging.
Ultimately, metal edging can do more harm than good and will not necessarily prevent damaging ice dams from forming.
Unfortunately, all shoveling will do is put your roof – and you – in danger. Not only is there the danger of falling, but there’s also a danger of damaging your roof and/or eaves in the process.
Shoveling is just a temporary fix. Unless it’s an emergency situation where structural damage is a very real possibility, it is not practical to shovel your roof. Use it as a last-ditch effort. Otherwise, you might find yourself doing it all over again the next weekend.
At best, zig zag heat tapes create a tiny pathway for the water to pass through. Heat tape is easily overwhelmed by large amounts of snow, and is really only useful in areas that receive minimal snowfall each year.
Zig zag heat tapes are often installed improperly, leaving parts of the roof exposed and vulnerable to ice damage. They also tend to collect pine needles and other debris that can create a fire hazard.
If you are tired of dealing with ice dams every winter and want the best solution for lifelong ice dam prevention, contact HotEdge today! Our UL Accredited roof ice melt systems will protect your home and will eliminate the headache caused by ice buildup on your roof. To speak to a specialist, call (800) 411-3296.