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Roof Replacement

Materials installed according to manufacturers specifications to last.
Same Day Service

For roof repair, siding repair, gutters
and infrared moisture detection.
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What People Say About Us
Roof Repair, Infrared
Roofer911 set a new standard for all service professionals. After my online submission, my phone rang within minutes with Roofer911 on the line to discuss my roof problem. Within an hour they were on site for an evaluation, and even noted another problem I had not noticed. I was presented with a quote electronically, with a follow up call to review the quote and had roof repair folks fixing my roof the same day. Professional, courteous, informative, easy and fast. Service was top notch and pricing was very reasonable. If I could rate six stars I would!!!!
Pamela Combsbusiness
Vienna, VA
June 22, 2011
Roofer911 - Northern VA
0.3

Ice Dam Prevention

IS YOUR PROPERTY AT RISK? ACT NOW!


How Ice Dams Form?

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, basement, insulation, and other areas.

For ice dams to form, there must be snow on the roof and higher portions of the roof's outside surface must be above 32° F while lower surfaces are below 32°F. For a portion of the roof to be below 32°F, outside temperatures must also be below 32°F, and the temperatures must be sustained over a significant period of time. Roofs with large surface areas exposed to the sun and having small run-off areas are prone to ice buildup. A classic example is a roof with several gables or dormers. Very heavy snowfalls also can create problems: a foot or more of snow on a roof combined with warm winter temperatures can warm the roof and cause snow melt and ice on eaves.

The snow on a roof surface that's above 32°F melts, and as the water flows down the roof, it reaches the portion of the roof that is below 32°F and freezes, making an dam.

As the dam grows, it is fed by the melting snow above it, but will limit itself to the portions of the roof that are on average below 32° F. The water above backs up behind the ice dam, remains a liquid, and finds cracks and openings in the exterior roof covering and flows into the attic space. From the attic it can flow into exterior walls or through the ceiling insulation and stain the ceiling finish.


Ice Dam Prevention:

We start by adding a waterproofing membrane along eaves, valleys or behind gutters. These are high-risk areas for leaks; valleys due to improper flashing installation and eaves because of ice dams. We used a thick, bituminous material with an adhesive backing. The membrane protection provides extra protection against water penetration and is also required by code in "Snow Belt" states at the eaves.

"Roof Rake, Model# 96322NT"

Rugged 22in. x 5 1/2in. aluminum blade with 3-section lock-together handle reaches up to 16 feet For use in temps down to -50 F

    

 

We take every precautionary measure when dealing with the elements and it's good insurance against problem gutters or leaky roofs. Avoid aggravation and expense by taking a few preventative measures:

 

  • Keep the attic well ventilated. The colder the attic, the less melting and refreezing on the roof.
  • Keep the attic floor well insulated to minimize the heat rising through the attic from the house.
  • Install a water-repellent membrane under your roof covering.

 

Ice dams may be unavoidable if your home has recessed lighting near the roof. Heat from these lights melts the snow, which causes ice dam buildup. To avoid this, eliminate recessed light fixtures near the roof.

How Can I Prepare for an Ice Dam Disaster?

To learn more about ice dam and ice dam removal or to post a question or comment please visit our blog at /roofing-blogs/Ice-dam-removal-prevention.htm


Request Estimate
Immediate Response!
Upload a Photo of Your Roof and receive an instant
quote in minutes!

powered by myPhotoQuotes

Full Name:
Address:
City:
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Zip:
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Email:
Type of Service:
Customer Type:
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We Proudly Accept
Testimonial
What People Say About Us
Gutter Installation
Great job as usual. The gutters were priced and installed in under 24 hours, and they and the new gutter covers look great. This is the third project Roofers 911 has done for me, all top notch. On the other two, Roofers 911 similarly responded on the same day to replace shingles that came off in a storm, and in the first instance, the job was done before the rain had even stopped. Email estimates and photos of work to be done and e-invoicing system is state of the art, a real boon for customers who cannot wait at home.
Peter C.business
Arlington, VA
May 6, 2011
Roofer911 - Northern VA
0.3


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