Our Story

You can see a fence aging.
You can't see your roof.

But the same thing is happening.

Every homeowner has seen this. A fence that was once warm and rich slowly turns silver-grey. It happens so gradually you barely notice — until one day you look at it and think, that needs some attention.

A gently aged cedar fence — silver-grey, a little tired, but not destroyed

A few years of California sun. The wood has gone grey. The grain is starting to show. It's not falling apart — it just looks tired. You know what it needs.

A freshly stained cedar fence — warm honey-brown, healthy, protected

A coat of stain. The oil soaks into the wood, replaces what the sun took out, and brings back the warmth. It's not new — it's just maintained. That's all it needed.

You see this happen. You know when it's time. You get it stained.

Now look at your roof. From the ground, it looks fine. Maybe a little lighter than it used to be. But you're not up there. You don't see what's happening.

A residential roof seen from the ground — looks basically fine

From the ground

Looks fine. Maybe a little faded. You'd walk past this every day and never think twice about it.

Close-up of aging shingles — subtle granule loss, slightly dry

Up close

The granules are thinning. The asphalt is drying out. The binder that holds everything together is slowly breaking down. The same thing that happened to the fence is happening here.

This is happening whether you see it or not.

Same sun. Same process.

UV radiation breaks down organic binders. In wood, it's called lignin. In asphalt, it's called bitumen. The names are different. The process is identical.

Split comparison — aged fence on left, aging shingles on right

Wood fence

You see it aging

Asphalt shingle

You don't see it aging

Your FenceYour Roof
MaterialCedar / redwoodAsphalt shingle
What UV destroysLignin (wood binder)Bitumen (asphalt binder)
What you seeGrey, dry, grain showingFaded, lighter color
What you don't seeFibers weakening insideGranules loosening, binder drying
The fixOil-based stainGoNano nanosilica treatment
How it worksPenetrates, seals, blocks UVPenetrates, seals, blocks UV
Visible resultDarkens the woodDarkens the shingles
Cost to maintain$500 – $2,000$2,500 – $6,000
Cost to replace$3,000 – $8,000$15,000 – $35,000

Same concept. Way less sexy. 100 times more practical.

This is an unsexy thing.

We're not going to pretend this is exciting. Nobody gets excited about roof maintenance. You're not going to post about it on Instagram. Your neighbors probably won't notice.

What we're selling is this: keep your roof healthy. That's it. The same way you'd stain a fence before it falls apart — treat your roof before it needs replacing.

You probably won't see it. You probably won't appreciate it. But 10 years from now, when your neighbors are writing $25,000 checks for new roofs, you'll understand why it mattered.

What it looks like

Just like stain darkens a fence as it soaks in, GoNano darkens shingles as the oil penetrates the asphalt. It's a subtle change — but it means the treatment is working.

Fence before staining — grey, faded
Fence after staining — warm, rich, protected

Before stain

After stain

The oil soaks in and darkens the wood.
You can see it working.

GoNano roof treatment — aerial before and after showing darkening effect

The oil soaks in and darkens the shingles.
Same principle. Same visible sign.

Condo complex before GoNano — faded, light grey shingles

Before

Faded. Dry. Quietly losing protection.

Same condo complex after GoNano — darker, restored shingles

After

Darker. Re-saturated. Protected again.

We've been doing this for 24 years.

Tom Sawyer Fence Painting has been restoring and protecting wood surfaces in California since 2002. Roof Care Pros is the same team, same expertise, applied to a different surface.

24

Years in business

85

Google 5-star reviews

30

Yelp 5-star reviews

1,000+

Surfaces restored

When we found GoNano, we didn't just take their word for it. We checked the lab reports. We read the peer-reviewed research. We looked at the UL certification. We treated our own properties first. We don't sell anything we wouldn't put on our own roof.

We checked the science.

Before we put our name on it, we verified every claim.

CNETE Lab Tested

Independent Canadian lab verified penetration depth, UV resistance, and material compatibility.

UL Certified

Underwriters Laboratories tested hail impact improvement — Class 1 shingles upgraded to Class 3.

Peer-Reviewed Research

Nanosilica modification of asphalt documented in Scientific Reports, Construction & Building Materials, and others.

OSHA Biodegradable

Water-based, non-toxic, safe for workers and the environment. No VOCs, no harsh chemicals.

Common Questions

Get a free roof assessment.

We'll come out, look at your roof, and tell you honestly what we find. If it doesn't need treatment, we'll tell you that too. No pressure. No drama.

Free — No ObligationResponse within 24 hoursServing San Diego & the Sierras