Frequently Asked Questions
Straight answers from 40+ years of metal roofing experience
Considering a lifetime metal roof? These are the questions homeowners ask us most. If you don't see yours here, browse the Knowledge Base or contact us — we're happy to help.
How much does an Interlock Metal Roofing System cost?
Every roof is different — pricing depends on the size and complexity of your roof, its pitch and access, and the profile and color you choose. As a premium lifetime system, an Interlock roof costs more upfront than asphalt, but it never needs replacing — paying for itself through decades of zero re-roofing costs and lower energy bills. Request a free, no-obligation quote for exact pricing on your home.
What metal is an Interlock Lifetime Roofing System made from?
Do metal roofs protect against hail?
Yes. Interlock Metal Roofing Systems carry the UL 2218 Class 4 impact rating — the highest hail resistance rating available — proving they can withstand a 2-inch steel ball dropped from 20 feet without cracking or splitting, a test that simulates large hail.
Are metal roofs hot?
No — quite the opposite. The Alunar® Coating System uses Cool Roof ceramic IR-reflective pigments that reflect solar energy instead of absorbing it. Interlock roofs are CRRC rated and can help reduce attic temperatures and summer cooling costs by up to 25%.
Does a metal roof attract lightning?
No. Lightning strikes the highest object in an area regardless of material — a metal roof does not increase the odds of a strike. In fact, if lightning does strike, a metal roof is non-combustible and disperses the energy safely, making it one of the safest roofing choices in a storm.
Are metal roofs loud?
No. Interlock roofs are installed over your existing roof deck and underlayment, so rain noise is comparable to — and often quieter than — an asphalt roof. The interlocking heavy-gauge aluminum panels don’t drum the way thin exposed metal sheets on a barn would.
Can you walk on a metal roof?
Yes — Interlock roofing is designed to be walkable when proper care is taken. We recommend soft-soled shoes, walking in the lower portions of the panels, and hiring a skilled professional for any work that requires accessing your roof.
Can I install an Interlock roof myself?
Interlock systems are installed by trained, certified professionals. Correct installation is essential to the 4-way interlocking design’s wind resistance and to your warranty coverage, so DIY installation isn’t recommended or supported.
Can I finance my Interlock Lifetime Roofing System?
Yes — financing options are available in most regions. Ask your local Interlock representative about current financing programs and promotions when you request your free quote.
Can I add solar panels to an Interlock Metal Roofing System?
Absolutely. Interlock roofs are solar-ready: panels can be mounted without penetrating the roofing surface, and the 50+ year lifespan of the roof means you’ll never need to remove your solar array for a re-roof.
Still have questions? Talk to a roofing specialist.
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