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Professional Roofing & Exteriors
5790 Lamar Street
Arvada CO 80002
Phone: 303-420-0986
Toll Free: 877-420-0986
Fax: 303-420-0987
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EMPLOYMENT OPPORTUNITES


Built Up Asphalt or Tar & Gravel

Multiple layers of asphalt impregnated felt, usually ballasted with 3/8" nominal pea gravel.

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Advantages

• 3 or 4 Layers of Asphalt Impregnated Felt makes a water tight barrier
• Inexpensive

Disadvantages

• Hot Asphalt contains V.O.C.'s and can be dangerous to install
• Requires aggregate on top to prevent black asphalt top coat from blistering
• Degrades rapidly without surface protection
• Aggregate collects dirt. Also must be removed for repairs or additional coatings.