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Welcome to Tip #4 in our Fairfield Home Inspection Blog series how to preventing and removing ice dams from your home. In Tip #3 we discussed maintaining the correct temperature in the attic via proper ventilation to help prevent ice dams (see Part #3 of our Fairfield Home Inspection Blog series)

While there are many ventilation and insulation actions you can take to help protect your home from ice damming, I want to talk specifically talk about another piece of the puzzle, Ice & Water Shield, and offer some insight on the installation this product.  Certainteed, GAF, Owens Corning, and Grace all offer of a variety of Ice & Water shield products, but they do have some things in common, one of which is that they are sold in 36″ wide rolls.  This is important to note as 3 of the 4 (Certainteed, Owens Corning and GAF) require the membrane to be installed up the roof to a point at least 24” past the interior warm inside wall.  Grace installation instructions state to “Extend the membrane on the roof deck above the highest expected level of water back-up from ice dams…”

This information is important to take into account when looking at the length of the eave at ones house.  Common to homes in the northeast and the homes we inspect in Fairfield County, eaves can run up to 2 feet in length, and in some mid century contemporary designs be even larger.  That means correct installation would require a 2nd course, lapped over the original, as laying a 36″ wide ice and water shield on a 24″ eave would only offer 12″ of protection past the interior warm inside of the wall.  This can often be checked at the side of the roof along the rake board.  There are no certainties when it comes to mother nature but making sure your ice and water shield is installed according to current building standards and manufacturers instructions is at least one step in making sure you are giving your Fairfield County home the best chance at protection from ice damming. Looking for home inspection in Fairfield County? Long River Home Inspection services homeowners and potential home owners across Fairfield County, CT including these towns: Fairfield, Westport, Bridgeport, Trumbull, Easton, Wilton, Ridgefield, Stamford, New Canaan, Weston, Norwalk, Greenwich, CT and beyond! Just Contact Long River Home Inspection of Fairfield with any home inspection questions or to book your appointment.

 

Interested to learn more about Fairfield’s premier home inspector? Click to learn more about Long River Home Inspection Fairfield. 

 

Next in our Fairfield Home Inspection Blog series we’ll discuss a few options a homeowner can take if they are the unfortunate victim of ice damming and some alternative solutions to help preventing it.

 

 

Additional Information and links: 

Links to installation/data sheets:

Grace

https://gcpat.com/construction/en-vn/Documents/Grace%20Ice%20Water%20Shield.pdf

Owens Corning

http://www.owenscorning.com/NetworkShare/Roofing/10011693-WeatherLock®-Series-Installation-Instructions.pdf

GAF

http://www.gaf.com/Residential_Roofing/Leak_Barriers/StormGuard/StormGuard_Leak_Barrier_Installation_Instructions_English_Spanish_French.pdf

Certainteed

http://www.certainteed.com/resources/UnderlaymentInstall.pdf