Low-Slope vs. Steep-Slope

Related terms

• Manufacturer Warranty

  Coverage on the shingles/system from the maker. Enhanced/system warranties require all-matched components and certified-installer registr…

• Insulation Baffle

  A chute at the eave keeping insulation from blocking soffit-vent airflow into the attic.

• Modified Bitumen

  A rolled, polymer-modified asphalt membrane for low-slope roofs, torch- or self-adhered. A common residential flat-roof system.

• Impact-Rated Shingle

  A Class 4 (UL 2218) hail-resistant shingle that may earn an insurance premium discount in hail-prone regions.

• Nail Pop

  A fastener backing out and tenting or puncturing a shingle, creating a leak. Common from improper nailing or deck movement.

• Ice Dam

  A ridge of ice at the eave from attic heat melting and refreezing snow, forcing water back under shingles. Fixed by air-sealing, insulati…

• Ohio Matching Law

  Ohio guidance that insurers reasonably match repaired/replaced materials so a roof isn't left visibly mismatched after a partial claim.

• Ice & Water Shield

  A self-adhered waterproof membrane at eaves, valleys, and penetrations that blocks ice-dam and wind-driven-rain leaks. Code-required at e…