Definition
The underside of the roof overhang. Soffits typically contain ventilation openings (soffit vents) that allow outside air to enter the attic. Can be vented or solid, and are typically made of aluminum, vinyl, or fiber cement.
Related Terms
Algae Resistant Shingles
Shingles manufactured with copper granules that inhibit the growth of blue-green algae, which causes dark streaks on roofs. Common in humid climates but beneficial in Colorado where moisture can collect in shaded areas.
Aluminum Siding
Lightweight metal siding popular from the 1940s-1970s. Durable and low-maintenance but dents easily and can oxidize over time. Still found on many Colorado homes.
Architectural Shingles
Multi-layered asphalt shingles that create a dimensional, textured appearance. Also called laminated or dimensional shingles. They're thicker, more durable, and more wind-resistant than 3-tab shingles.
Asphalt Shingles
The most common residential roofing material in North America. Made of a fiberglass mat coated with asphalt and surfaced with mineral granules. Available in 3-tab and architectural styles.
Attic Ventilation
The system of intake and exhaust vents that circulates air through the attic space. Proper ventilation prevents moisture buildup, ice dams, and premature shingle deterioration.
Back-Primed
Siding that has been primed (sealed) on the back side before installation. Back-priming prevents moisture absorption from behind, extending the life of the siding — especially important for wood and fiber cement.
Batten
A narrow vertical strip applied over joints between siding panels in a board-and-batten installation. Creates a distinctive vertical pattern.
Blistering
Raised bubbles on the shingle surface caused by moisture trapped in the shingle during manufacturing or by excessive heat in poorly ventilated attics.
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