Common Roofing Terms Explained for Homeowners

Warner Roofing’s Rockford Roofing Glossary

Insurance & Claims Terms

Filing a Claim – Notifying your insurance company that your roof has damage.

Adjuster Appointment – A scheduled inspection by your insurance company’s adjuster.

Appeal – A request for the insurance company to review a denied or underpaid claim.

Estimate – A written calculation of the cost to repair or replace a roof.

Insurance Authorization Form – A document allowing your roofer to speak with your insurer.

Depreciation – The loss of value as your roof ages.

Recoverable Depreciation – Funds you get back after the work is completed.

Non-Recoverable Depreciation – Value of your roof that the insurance company will not reimburse.

Supplement – An added request for insurance money if hidden damage is found.

Scope of Loss – Insurance report describing approved repair work.

Like-Kind-and-Quality (LKQ) – Replacement materials must match what’s already installed.

Public Adjuster – Licensed professional representing the homeowner in a claim.

ACV (Actual Cash Value) – Roof’s value minus depreciation.

RCV (Replacement Cost Value) – The full cost to replace your roof.

Deductible – The out-of-pocket cost you pay before insurance covers the rest.

Acts of God – Policy term for natural events (hail, wind, tornadoes).

Endorsement – A change or add-on to your insurance coverage.

Exclusion – Specific types of damage your policy won’t cover.

Arbitration – Third-party review when there’s a dispute with insurance.

Umbrella Policy – Additional insurance coverage beyond standard limits.

Physical Roofing Terms

Shingle – Overlapping pieces covering most residential roofs.

Architectural Shingle – Premium laminated shingle with depth and durability.

Tab Shingle – Basic three-tab asphalt shingle.

Fascia – Vertical board supporting the gutter at the roof’s edge.

Soffit – The underside of the roof overhang.

Ridge Vent – Ventilation opening along the roof’s peak.

Hip – External angle where two roof slopes meet.

Valley – Internal angle where two roof slopes meet.

Pitch – The steepness of the roof, measured as rise over run.

Square – 100 square feet of roof surface.

Flashing – Thin metal preventing leaks around roof penetrations.

Step Flashing – Layered flashing along walls or dormers.

Drip Edge – Metal trim directing water into gutters.

Underlayment – Protective sheet installed beneath shingles.

Ice & Water Shield – Waterproof barrier in vulnerable roof areas.

Decking – Wood sheathing that roofing materials attach to.

Rot – Decay of roof decking caused by moisture.

Rafter – Sloped structural beam supporting the roof deck.

Truss – Pre-assembled roof support structure.

Gable – Triangular section of wall beneath the roof’s slope.

Dormer – A roof projection with a window.

Eave – The roof’s lower overhang.

Cornice – Decorative trim at the roof/wall intersection.

Chimney Cap – Cover keeping water and debris out of chimneys.

Vent Pipe – Pipe through the roof that ventilates plumbing.

Commercial & System Terms

TPO – Thermoplastic Polyolefin, a flat roof membrane.

EPDM – Synthetic rubber roofing membrane.

PVC Roofing – Plastic-based single-ply roofing membrane.

Modified Bitumen – Asphalt-based roofing system with added flexibility.

BUR (Built-Up Roofing) – Layers of asphalt and fabric for flat roofs.

Standing Seam Metal Roof – Metal panels with raised locking seams.

Corrugated Metal Roof – Metal roofing with a wavy pattern.

Spray Foam Roofing – Sprayed polyurethane foam that insulates and seals.

Roof Coating – Liquid-applied layer that extends roof life.

Ballasted Roofing – Roofing membrane held down with stones or pavers.

Single-Ply Membrane – Flat roofing system with one layer of synthetic material.

Parapet Wall – Vertical wall extending above a roofline.

Expansion Joint – Flexible connector that allows for roof movement.

Roof Hatch – Access point built into a roof.

Skylight – Window built into the roof to allow natural light.

Green Roof – Roof covered with vegetation for insulation and environmental benefit.

Weather & Damage Terms

Hail Damage – Shingle bruising or cracking caused by hailstones.

Wind Uplift – Strong winds pulling shingles loose.

Ice Dam – Ice ridge at roof edge that traps melting snow.

Ponding Water – Standing water on a flat roof.

Blistering – Bubbles forming under roofing from trapped moisture.

Curling – Edges of shingles turning upward.

Granule Loss – Erosion of the gritty surface on asphalt shingles.

Cracking – Splitting of roofing material from age or stress.

UV Degradation – Sunlight damage that weakens roofing materials.

Algae Staining – Dark streaks caused by algae growth.

Moss Growth – Moss buildup that holds moisture on the roof.

Impact Damage – Harm from falling branches or debris.

Thermal Shock – Stress from quick temperature changes.

Force Majeure – Legal term for unavoidable natural disasters.

Process & Work Terms

Tear-Off – Removing old roofing down to the decking.

Overlay – Adding new shingles over old ones.

Re-Roof – Installing new roofing materials on an existing roof.

Inspection – Review of a roof’s condition.

Final Inspection – Last check to confirm completed work.

Emergency Tarping – Temporary covering to prevent leaks after damage.

Maintenance Agreement – Contract for routine roof inspections and upkeep.

Roof Certification – A professional statement verifying roof condition.

Permit – Required authorization before roof work.

Code Compliance – Meeting local building standards.

Punch List – Items to finish or fix before job completion.

Change Order – Written change to scope or cost during a job.

Lead Time – Waiting period for materials or project start.

Warranty Transfer – Passing a warranty to a new homeowner.

Why Choose Warner Roofing?

Est. 2011

Experience

24/7

Emergency Services

#104.016514


IL Roofing License

#051800115-DC

Wisconsin Roofing License

Looking for a roofer near you in Rockford and surrounding areas.

Our shop at 417 S Winnebago St is minutes away.

Call 815-877-ROOF for a same-day inspection. here

Copyright 2025. Warner Contracting, LLC. All Rights Reserved.