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Algae Discoloration of Roofs
For many years, roof discoloration caused by algae has been observed throughout the United States and Canada. The discoloration usually has a brown to black appearance, and may be mistaken for fungus growth, soot, dirt, moss, or tree droppings. Gloeocapsa magma is probably the most prevalent of several algae species ... Read more

Photovoltaic Systems and Asphalt Shingle Roofs
Introduction Photovoltaic (PV) systems convert sunlight into electricity. These systems have been successfully installed on residential asphalt shingle roofs for many years. The two common attachment methods are rack-mounted and roofintegrated: The latter method is sometimes referred to as building integrated photovoltaics. Framed rigid PV panels/modules are commonly mounted on ... Read more

Technical Bulletin: INSULATION ALERT!!!
Technical Bulletin ARMA Report (PDF) ... Read more

Recent News

Algae Discoloration of Roofs

For many years, roof discoloration caused by algae has been observed throughout the United States and Canada. The discoloration usually has a brown to black appearance, and may be mistaken for fungus growth, soot, dirt, moss, or tree droppings. Gloeocapsa magma is probably the most prevalent of several algae species that contribute to discoloration. All […]

Photovoltaic Systems and Asphalt Shingle Roofs

Introduction Photovoltaic (PV) systems convert sunlight into electricity. These systems have been successfully installed on residential asphalt shingle roofs for many years. The two common attachment methods are rack-mounted and roofintegrated: The latter method is sometimes referred to as building integrated photovoltaics. Framed rigid PV panels/modules are commonly mounted on racks attached to the roof’s […]

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John the Roofer Company
4 Bella Rosa Drive
Millbury, MA 01527

MA CSL #97139
MA HIC #111318
RI HIC #258
RI Commercial HIC #44R

John the Roofer Company, Roofing Contractors, Millbury, MA

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