Most homeowners assume there are only two options when their roof starts to age: live with it or replace it. Tundra Exteriors offers a third — roof restoration treatment using gonano spray-applied sealer technology, which can extend the life of an aging but structurally sound asphalt roof by up to 10–15 years at a fraction of replacement cost.
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For a typical Twin Cities homeowner, a full roof replacement runs between $12,000 and $25,000 depending on size and materials. A gonano restoration treatment costs significantly less — and if your roof qualifies, it's one of the highest-return investments you can make in your home's exterior.
Permanent Structure Modification
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Is Your Roof Aging? There May Be a Better Option Than Full Replacement.
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Roof Restoration Treatment in the Twin Cities, MN — Tundra Exteriors
What Is gonano?
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gonano is a professional-grade shingle treatment system that uses nanotechnology to work at the molecular level of your existing asphalt shingles. The treatment penetrates the shingle surface, replenishes lost oils and flexibility, reseals the granule layer, and creates a protective barrier against UV radiation, moisture, freeze-thaw cycling, and hail impact.
Unlike surface coatings that sit on top of shingles and eventually peel, gonano is absorbed into the shingle material itself — permanently modifying its structure to restore performance characteristics similar to new shingles.
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Revive
For 10+ year old asphalt roof systems
Bio Boost
For older asphalt roofs that still have granules
Before
After
Find out what treatment might be right for your roof.
Shingle Saver
For new to 10 year old asphalt roof systems
The Three gonano Products
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Shingle Saver — For New to 10-Year-Old Roofs
Designed as a proactive treatment for newer roofs, Shingle Saver enhances UV resistance, improves granule adhesion, and extends the shingle's performance window before deterioration begins. Applied early, it can significantly extend your roof's total lifespan.
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Revive — For 10+ Year-Old Roofs
Revive is the core restoration product for aging asphalt shingle roofs. It restores oil content and flexibility to brittle shingles, re-adheres loose granules, seals minor surface cracks, and dramatically improves resistance to future weathering. This is the product most Twin Cities homeowners use for restoration.
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Bio Boost — For Older Roofs With Remaining Granules
Bio Boost is formulated for older roofs that still have their granule layer intact but are showing significant aging. It provides deep penetration to restore the underlying asphalt mat while reinforcing whatever surface protection remains.
Is Your Roof a Candidate for Restoration?
Not every roof qualifies — and we'll always tell you honestly if it doesn't. A goNano treatment works best when:
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Your roof is between 7 and 18 years old
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The shingles still have their granule layer intact
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There are no significant structural issues — sagging, rotted decking, or widespread missing shingles
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You don't have active leaks that would require repair first
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You want to maximize the remaining value of your current roof before eventually replacing it
Roofs with major structural damage, extensive missing shingles, or severe ice dam damage usually need repair or replacement first. We'll tell you exactly which situation you're in after a free inspection.
Roof Restoration FAQ
How long does the treatment last?
Depending on the product used and your roof's condition at the time of treatment, gonano can add 5–15 years of performance life to your existing roof. Revive, the most common product for aging roofs, typically adds 10+ years for qualifying roofs.
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Is the treatment guaranteed?
Yes — gonano products are backed by a manufacturer performance guarantee. Tundra Exteriors also stands behind every application we perform. If your treated roof experiences covered performance issues, we make it right.
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How long does the application take?
A typical residential application takes a few hours. The treatment needs to dry and cure, but there's no disruption to your home and no tear-off or debris removal involved.
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Can I get a restoration treatment after storm damage?
It depends on the extent of the damage. Minor hail impact on an otherwise sound roof can sometimes be treated — but significant structural damage, widespread granule loss from hail, or insurance-approved replacement makes restoration the wrong choice. We assess every situation individually and recommend what genuinely makes sense.
Why Twin Cities Homeowners Choose Tundra Exteriors
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Veteran-owned and operated — integrity, accountability, and follow-through on every job
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BBB Accredited — verified and trusted across the Twin Cities metro
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IKO RoofPro Certified — manufacturer-certified installation with premium warranty coverage
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Honest assessments — we recommend what your home needs, never what pads our invoice
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Post-project inspections — we review every job and return to perfect anything that falls short
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Fully licensed — Minnesota License BC#808821
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Here's what Twin Cities homeowners say about working with Tundra Exteriors:
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"At post project inspection, they identified areas they wanted to perfect so they had the workers come back and make a great job even better! These guys are all about great integrity."
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"Jake at Tundra Exteriors has been great! Service and advice have been awesome. We look forward to working with him in the future." — Don
Roof Restoration Across the Twin Cities Metro