Is your flat roof looking old and worn, is the color too contrasting to your shingle color…?? If you answered yes to either question, then consider installing CertainTeed’s Flintlastic Low-Slope System.

As a residential homeowner you are no longer confined to the old color standards of white or black. By installing Flintlastic, you have the opportunity to remove the current “eye-sore” and select a color that closely matches your existing shingle color. Not only do you achieve a roof that is more appealing, but if you’re current flat roof is black, you can significantly reduce the radiant solar heat you feel during those hot, humid summer months by selecting are more energy conscious color.

Our Sr. Project Managers have the expertise to walk you through your flat roofing options and help you realize the look and feel you desire from your new flat roof system.

Why choose Flintlastic?

  • Self-Adhered Roof Systems for Low-Sloped Residential Roofs
  • Modified Bitumen systems include factory-fabricated layers of asphalt that are “modified,” using a rubber or plastic ingredient for increased flexibility and combined with a reinforcement for added strength and stability. Bitumen (or asphalt) is a sticky, black, and viscous liquid or semi-solid form of petroleum.
  • In modified bitumen, there are two primary modifiers used today: APP (atactic polypropylene) and SBS (styrene butadiene styrene). APP and SBS refer to the type of polymers that are added to the asphalt. A variety of reinforcements are used with the asphalt, including fiberglass and polyester mats and scrims. Scrim is a reinforcing fabric made from continuous filament yarn in an open mesh construction.
  • Modified Bitumen can be installed as a two-ply or three-ply (multi-ply roof) system. This is a very labor intensive process that absolutely must be performed by a professional.
  • Expected Life-Span: 15-20 years

What Are The Advantages?

Self-adhered roofing offers the time-tested protection of modified bitumen roof systems for a fraction of the labor with no fumes, flame, asphalt kettle or occupant disturbance. The application of self-adhered low-slope roof systems is also easier to master than traditional bituminous application methods.

Flintlastic SA systems are valued for:
• Superior initial and long-term bonds; Premium grade adhesive
• Excellent applicator handleability in hot or cold temperatures
• Allowed application temperatures as low as 20°F (cold weather application instructions must be      followed when ambient temperatures are between 20°F – 49°F)
• Wide array of cap sheet colors true-blended to complement popular CertainTeed shingles
• Unlike other traditional flat roof systems, Flintlastic enables the residential homeowner to “blend”    other flat roof structures to closely match existing shingle colors
• Flintlastic SA Cap and SA Cap FR are available with CoolStar highly reflective granules

Our Service List

From top-rated roofing services to siding and gutters, there’s only one contractor in the region that can tackle it all at great prices – St. Joseph’s Roofing. Get in touch today for the best service money can buy. Our services include:

Our Service Areas

St. Joseph’s Roofing services a wide-ranging area in Northern Virginia and Maryland. We have listed all of the counties and cities we frequently service to give you an idea of our reach. If you do not see your location listed, call (703) 716-7663 to see if we can help you.

Counties in Virginia and Maryland:

Fairfax County, Va | Arlington County, Va | Loudoun County, Va | Prince William County, Va | Montgomery County, MD

Cities We Serve in Virginia:

Alexandria, Va | Annandale, Va | Arlington, Va | Ashburn, Va | Bristow, Va | Burke, Va | Centreville, Va | Chantilly, Va | Clifton, Va | Fairfax Station, Va | Fairfax, Va | Falls Church, Va | Gainesville, Va | Great Falls, Va | Lake Ridge, Va | Leesburg, Va | McLean, Va | Middleburg, Va | Oakton, Va | Potomac Falls, Va | Reston, Va | Springfield, Va | Vienna, Va

Cities We Serve in Maryland:

Bethesda, Md | Cabin John, Md | Chevy Chase, Md | Glen Echo, Md | Olney, Md | Potomac, Md | Rockville, Md

#1 In Northern Virginia & Maryland

St. Joseph’s Roofing offers the finest roofing and roofing-related services available in Northern Virginia and Maryland. With more than 25 years in business, we know what it takes to exceed expectations and our results, well, they speak for themselves. Our motto is simple – clients should never be overcharged through deceit. Honesty is the best policy. If that sounds good to you then call (703) 716-7663 for a free estimate today!


Superior Craftsmanship. Award-Winning Customer Service. Honest, Transparent Pricing!

The Most Trusted Contractor In Our Area!

St Joseph’s Roofing is the #1 licensed and insured roofer in Northern Virginia’s for all your residential and commercial roofing needs. Our estimates are free and our work is world-class.

603 Carlisle Dr. Herndon, VA 20170
P: (703) 716-7663

10494 Business Center Ct.
Manassas, VA 20110

3305 Sage Rd
Markham, VA 22643

4533 Stanford St
Chevy Chase, MD 20815

Contact Us Here


  • Monday – Friday : 9 AM – 5 PM
  • Saturday : CLOSED
  • Sunday : CLOSED

Licensing: VA Contractors License #2705175440 | MD Contractor License #88608
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