Warranties, Myths & FAQs
Warranty coverage in plain language, the myths about metal roofs, and the questions homeowners ask most.
10 guides
- Are Metal Roofs Loud When It Rains?No. A modern interlocking metal roof installed over a solid roof deck and underlayment is about as quiet as an asphalt roof in the rain — typically around 50 decibels indoors, similar to normal…
- Do Metal Roofs Affect WiFi, Cell Signal & TV Reception?No — a metal roof does not affect your home WiFi or cell signal in any way you would notice.
- Do Metal Roofs Attract Lightning?No. Lightning strikes the tallest object in an area regardless of material — metal does not attract it.
- Do Metal Roofs Leak More Than Shingles?No — a properly installed metal roof leaks far less than asphalt shingles, not more.
- How to Transfer a Roofing Warranty When You Sell Your HomeSome roofing warranties transfer to a new homeowner and some do not — the certificate's transfer clause decides.
- Metal Roofing FAQ: Your Top Questions AnsweredCommon questions answered fast: a quality metal roof lasts 50+ years, costs $5–$16 per square foot installed, is quiet over a proper deck, does not attract lightning, resists hail and 120+ mph wind…
- Metal Roofing Myths, DebunkedThe most common metal roofing myths are false: they are not noisy (about as quiet as asphalt over a proper deck), do not attract lightning (material does not affect strikes), do not make your house…
- Metal Roofing Problems: What Actually Happens Over 20 YearsMetal roofing’s real failure modes are well understood: oil canning on wide flat panels, gasket wear on exposed fasteners, galvanic corrosion from dissimilar metals, cosmetic denting from extreme…
- Substrate vs. Finish Warranty: What Each Covers on a Metal RoofA substrate warranty covers the metal panel itself — its integrity against defects like rust-through, splitting, cracking, and curling.
- The Guardian Warranty: What Interlock's Lifetime Roof Warranty CoversInterlock's Guardian Warranty is a lifetime limited material warranty.