Ice dams snow on your roof and attic condensation.
Ice in attic roof.
There are four main causes of ice damming and the latter three we can actually do something about.
While stopping a water leak or repairing a washing machine hose down in the basement might be fairly straightforward snow on the roof ice dams and attic condensation are forms of water damage typical to cold climate homes and are a little more complicated and a little trickier to fix.
Excessive snow on the roof attic condensation and ice buildup can cause roof damage water damage and personal injury.
Household heat escaping to the attic.
Ice dams and icicles form when the snow melts runs down your roof and refreezes near the edge.
Installation of o hagin attic vents in conjunction with photo voltaic panels.
The melt water runs down the length of the roof to the eaves where it refreezes forming a dam and icicles.
This scenario is often the result of a warm attic.
There it soaks the insulation rendering it much less effective and can leak through the ceiling drywall below and into your living space.
The ice begins to back up under the roof shingles where it melts again soaking the roof sheathing and leaking into the attic.
Installation of o hagin attic vents on a batten row.
O hagin attic vents plywood thickness guide for florida.
The drip edge will be installed over the ice and water protector and other underlayments at roof rake edges you should install ice and water protector before other underlayments including roof felt.
Frost and ice forms in attics when warm humid air accumulates and condenses on the underside of your roof sheathing.
An ice dam forms when the roof over the attic gets warm enough to melt the underside of the layer of snow on the roof.
O hagin attic ventilation product selection guide.
Ice dam prevention is best achieved in three ways.
Ice and water protector needs to be installed directly onto the roof deck after you have placed the drip edge at the eave.
Installation guide for areas with ice dams.
Installation guide for snow and ice impacted areas.
This only occurs when part of your roof warms to above 32 degrees f warm enough to melt the snow while the roof edge remains below freezing.
Ice dams form when heat leaking into attics or roof cavities from the building below or from attic ductwork melts the bottom layer of snow on the roof.
The water trickles down between the layer of snow and the shingles until it reaches the eave of the roof which stays cold because it extends beyond the side of the house.
The one thing that did concern me was that i noticed on the north facing roof there was a thin layer of ice on the ceiling which is the underside of the roof.