1) Warm air entering attic through open air penetrations.
2) Poor ventilation.
3) Inadequate insulation.
4) Furnaces in attic.
KJ's Energysavers LLC 603-577-1772 email@example.com
WHAT IS AN ICE DAM?
An ice dam is a ridge of ice that forms at the edge of a roof and prevents melting snow (water) from draining off the roof. The water that backs up behind the dam can leak into a home and cause damage to walls, ceilings, insulation, and other areas.
Energy Insulation Specialists
1) Add venting such as roof and soffit vents to allow air to flow over the insulation.
2) Install a hatch cover.
3) Exhaust all ducts to outside.
4) Increase R-value by adding more insulation.
5) Install sealed (recessed) can lighting.
6) Seal around chimney, all chases in the attic and all air penetrations such as pipes,
plumbing vents and wire holes.
7) If you have an furnace located in your attic, there will always
be heat created. If significant problem with ice dams, then
it may be recommended you contact an HVAC specialist
to offer suggestions.