Tornado Radiant Barrier Underlayment

One Layer.
Five Kinds of Protection.

Tornado Radiant Barrier Underlayment goes down before every panel — a Class A+ fire-rated, radiant, sound-dampening, self-adhered ice & water shield built for Miami's heat and storms.

Featured Certification
Miami-Dade County Approved

Why Choose Tornado Underlayment

Most underlayments carry one rating. Tornado is built to carry five — without adding a second layer to the deck.

01 — Fire

Class A+ Fire Rated

The highest fire-resistance rating a roof underlayment can carry, tested against severe fire exposure.

02 — Heat

Radiant Energy Barrier

A reflective face that bounces heat back before it ever reaches your attic — not just a fire layer, a heat layer.

03 — Sound

Sound Barrier

Extra dampening between the panel and the deck, so rain and hail hit quieter than they would on a bare roof.

04 — Water

Secondary Water Barrier

A fully self-adhered layer that keeps the deck dry even if wind or storm damage compromises the panel above.

05 — Ice & Water

Ice & Water Shield

A premium self-adhered membrane rated to seal around fasteners and hold up against wind-driven rain and ice-dam backup at eaves, valleys, and penetrations.

About This Underlayment

Most underlayments do one job: keep water out. Tornado does five. It's the layer we install between your roof deck and every Tornado metal panel — reflective on top to bounce back heat, self-adhered underneath as a secondary water barrier and ice & water shield, dense enough to quiet down rain and hail, and rated Class A+ for fire resistance.

It's built to go under our own Tornado steel and aluminum panels, and every roll carries Miami-Dade County approval — the same standard our panels are held to.

More on Our Standards →

What It Protects Against

Filter by the risk you're building against — Tornado is rated to handle all five at once.

Radiant Heat

Reflects heat away from the roof deck instead of letting it soak into the attic.

Fire Spread

Class A+ fire resistance rated to help slow flame and ember spread across the roof assembly.

Water Intrusion

A fully self-adhered secondary barrier that keeps the deck dry even if wind or storm damage compromises the panel above.

Storm Noise

Added mass and dampening between the panel and deck to cut down rain and hail noise inside the home.

Ice & Wind-Driven Rain

A self-adhered ice & water shield membrane that seals tight around fasteners and holds up against wind-driven rain and ice-dam backup at eaves, valleys, and penetrations.

A+
Fire resistance rating
5-in-1
Fire, radiant, sound, water & ice-shield protection in one layer
20-Yr
Limited warranty
MD
Miami-Dade County approved

Not sure which underlayment your roof needs?

Just one call away: (305) 666-4848

Get Your Consultation

Certifications & Approvals

Every roll is held to the same standard as our panels.

✓
Miami-Dade County Approved
✓
Class A Fire Resistance
✓
Meets or exceeds ASTM D1970
✓
Standard 20-Year Limited Warranty
✓
Manufactured in the USA
✓
Paired system approval with MRM Tornado Steel & Aluminum Roof Panels (FL-approved)

What Can We Do for Your Roof?

Tell us about your project — residential or commercial — and we'll follow up with the right underlayment and panel spec.

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