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Emergency Repair for Roof Ice Dam Leakage (C) Daniel FriedmanStop Roof Ice Dam Leaks on a Sloped Roof

  • ICE DAM LEAK EMERGENCY REPAIRS - CONTENTS: Step by step illustration of stopping an ice dam leak on a sloped roof by a combination of removing snow and draining water from window sills: Control the water, find the leak, stop the leak, prevent future leaks.
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Emergency repairs for roof ice dam leaks:

This article describes emergency steps to stop roof ice dam leaks or water entry into a building in the middle of cold winter weather.



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Emergency procedures to stop indoor water leaks from a sloped-roof roof ice dam.

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman These emergency steps show to clear snow & drain water to roof ice dam stop leaks into building wallsThis article illustrates the successful control of an ice dam leak on an older home. The lower roof formed ice dams that sent so much water leaking into the roof wall over a window that water was entering the home interior.

Here we describe the steps in getting the water under control and stopping the ice dam leak. The article concludes with options for more permanent solutions to prevent future ice dam leaks at roofs like this one.

Emergency Steps to Stop a Roof or Gutter Ice Dam Leak

1. Indoor Steps to Stop Water Damage

These photos and comments describe the diagnosis and cure of roof ice dam leakage occurring on a steep-sloped roof in a New York Home.

Most likely the first notice you will see of a snow or ice related roof leak will be water dripping from a ceiling or a puddle on the floor.

The immediate steps to respond to this leak meant getting control of the water and stopping it from flowing into wall cavities or across interior floors.

Control the water: approaching the home and with the help of the observant homeowner we already knew which roof section was leaking - shown at the top of this page. Indoors at the worst leak point our immediate attention was focused on one window whose sill was filled with water that was overflowing and running into the room.

Leaving the window opoen a bit so that a bowl and towels could collect water may also have been speeding the leak by warming the window cavity into which water was flowing from the roof above.

[Click to enlarge any image]

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

We decided to adapt an ancient approach first practiced by the ancient greeks: therapeutic phlebotomy. Except instead of slitting anyone's wrists we drilled openings to simply let water run out of the lake formed between the storm window frame and the lip of the window sill or stool. (Photos below). This immediate relief sent water back outside and stopped the flow of water down the interior wall and onto the interior floor.

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

At below left you can see the new storm window weep opening that we re-opened. Prior owners had caulked these shut.
See STORM WINDOW WEEP HOLES if you are not already convinced you need these openings to be opened. There you'll find photos of rot damage from un-drained window sills on older homes.

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

When we'd drained and drained this window sill we vacuumed out loose debris that might otherwise have quickly clogged our 1/4" diameter drain opening.

2. Outdoor Steps to Stop the Ice Dam Leaks

Heading back outdoors we took a closer look for both clues explaining the ice dam leaks and water pathways onto or into the building walls. Other leaks may be entering this home's walls but not showing up in window sills. (You might spot these other ice dam leaks from a basement or crawl space below the lower floor.)

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

Back outside we took another more detailed look at the home's roof, walls and windows to see where water was flowing. Winter helps us out by freezing some of the leaking water to leave more easily-spotted ice.

This was a lower slope un-vented roof on a Colonial style two story home built more than fifty years ago. The original construction had included little or no insulation though various owners over the years had added insulation in the upper attic and possibly some of the home's walls. We suspect that the ceiling over this lower roof is either un insulated or has little insulation. There was no direct access into the attic-crawl area below the lower roof.

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

At above left we're looking at ice and water leaking out of the building wall just above the flooding window and window sill we'd been addressing with our handy drill. You can see ice and water both outside the storm window top (above left) and running down the inside of the storm window (above right).

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

Above are all that was needed to get this pesky ice dam leak under control: a ladder, drill and 1/4" bit, and a push broom. The vacuum cleaner was provided by the homeowner.

Below we're beginning to explore the roof. From my little toy ladder I can see not only obvious melt spots through the snow (you can also see these in our page top photo) but as the roof is cleared of snow we can see that the ice dam extends past the gutter and several inches up the roof (below right).

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

Below we show the roof raked of all of the snow I could remove with the back of my push broom. About half of this snow went into the tops of my boots.

Watch out: take care not to damage the shingles when brushing or raking snow off of a roof. Do not chop, hammer, bang or pry on ice or you may cause damage to the shingles and a new crop of leaks that will show up at the next rain storm.

Emergency ice dam leak diagnosis & repair (C) Daniel Friedman

3. Steps to Prevent Future Ice Dam Leaks at This Roof

The leak was stopped. At this point we have these repair options for this ice dam leak:

Watch out: heat tapes must be properly installed and connected to a GFCI receptacle to be safe and reliable.

Raking snow off of a flat roof (C) Daniel Friedman

Watch out: I do not recommend the snow-raking option for homeowners for high roofs. It's too easy to fall off of a ladder, especially in cold icy weather. I also warn about electrocution hazard if you are crazy enough to try raking snow off of a roof using a metal-handled tool near electrical wires. If you need snow removed from a high roof hire a professional. In the photo above snow is being removed from a flat EPDM covered roof. This job was too much for me so my partner [mostly cropped from view] performed it.

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