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Our Manassas roofing team visited a home on Cobb Road after the homeowner reached out through Angi Leads requesting an inspection and full replacement estimate. The existing shingle roof is approximately 25 years old and has begun to show significant age-related deterioration. The homeowner reported leaking over the porch as well as noticeable shingle warping—both signs that the roof system is nearing the end of its service life.
The home is a single-story structure, which allowed for a full evaluation of the roof slopes, porch area, and all transitions. The leak above the porch appears to be caused by water intrusion beneath aged shingles and compromised underlayment. Warping throughout the roof is consistent with long-term UV exposure, thermal expansion, and weakening of the shingle mat—issues commonly seen in older roofs throughout Manassas.
Given both the age and condition of the roof, a full tear-off and replacement is the most appropriate solution to prevent future leaks and structural damage.
A complete shingle replacement estimate was prepared using Owens Corning TruDefinition Duration or Tamko Titan XT architectural shingles. The proposal outlines every component needed for a modern roofing system, including:
• Full tear-off down to a clean deck
• OSB or plank board replacement as needed (first 2 sheets free)
• Metal drip edge at all roof edges (color options: brown, black, or white)
• Ice & water shield at eaves, valleys, pitch transitions, penetrations, and flashed areas
• Synthetic underlayment across remaining deck surfaces
• Proper starter strips at eaves and rakes
• Replacement of all vent boots, air vents, step flashing, and counter flashing
• Ridge vent installation on all ridges
• Correct product-specific ridge caps
These details are fully outlined in the uploaded proposal for the home on Cobb Road, including warranty options (Cenguard Silver, Gold, and Platinum) and notes regarding ventilation, skylights, and low-slope sections.
Homes in Manassas and the surrounding Prince William County area commonly experience shingle curling, granule loss, and leaking around porches or additions once their roofs reach the 20–25 year mark. A full replacement improves leak protection, ventilation efficiency, and overall home value.
Our Manassas roofing team provides detailed inspections and straightforward replacement options for homeowners throughout Manassas, Bristow, Nokesville, and nearby communities.
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