Roof underlayment family

Fontana Roof Underlayments

Review 4 Fontana Paper Mills underlayment references by attachment, material type, roof-covering fit and published performance role.

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Serving Arizona since 1999
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Labeled Fontana ASTM 30 asphalt-saturated roofing-felt roll

Roof underlayment family

Compare Fontana underlayments by application.

This page groups 4 underlayment products from Fontana Paper Mills into one focused manufacturer resource. It keeps exact product names, attachment methods and roof-covering roles together.

The options below identify whether the product is self-adhered or mechanically attached, the material construction, intended roof-covering fit and key published features.

Current family references

Compare 4 underlayment references.

Every option below keeps its image, name and comparison facts together. Use those references to narrow the direction, then connect the selection to the property and estimate.

Fontana Paper Mills

ASTM 30# – 2 SQ.

Asphalt-saturated felt · Mechanically attached

A traditional ASTM 30-pound-class roofing felt for compatible roof-covering assemblies.

Product / system role: Asphalt-saturated felt
Material / component: Traditional asphalt-saturated felt
Attachment: Mechanically attached
Roof fit: Approved steep-slope coverings
Technical reference: Lapped and mechanically fastened · Exposure and fastening limits apply
Substrate / format: Compatible roof deck · 36 in × published roll length

Traditional felt
Mechanically attached
Exposure limits apply

Roofing underlayment installed across a sloped roof deck by a Fontana contractor — Application image © Fontana Paper Mills.

Fontana Paper Mills

VulcaSeal M40

Modified underlayment · Mechanically attached

An asphalt-saturated, SBS-modified asphalt-coated underlayment published for concrete/clay tile and metal roofing.

Product / system role: Modified underlayment
Material / component: SBS-modified asphalt underlayment
Attachment: Mechanically attached
Roof fit: Concrete / clay tile and metal
Technical reference: Lapped and mechanically fastened · Published six-month dry-in exposure; installation rules control
Substrate / format: Compatible roof deck · 36 in × 72 ft published

SBS modified
Tile and metal role
Mechanically attached

Labeled Fontana VulcaSeal G40 fiberglass-modified underlayment roll — Image © Fontana Paper Mills.

Fontana Paper Mills

VulcaSeal G40 Fire-Rated

Fire-rated modified underlayment · Mechanically attached

A fiberglass-based modified asphalt underlayment used as a component of compatible listed tile or metal roof assemblies.

Product / system role: Fire-rated modified underlayment
Material / component: Fiberglass-based modified asphalt underlayment
Attachment: Mechanically attached
Roof fit: Listed tile and metal assemblies
Technical reference: Lapped and mechanically fastened · Class A language applies only to the complete listed system
Substrate / format: Approved deck and assembly components · Published two-square roll

Fiberglass based
Fire-rated system role
Complete listing controls

Fontana Paper Mills

VulcaSeal Organic Base 40#

Organic base sheet · Mechanically attached

An organic base-sheet underlayment for compatible tile and metal roof applications.

Product / system role: Organic base sheet
Material / component: Organic base-sheet underlayment
Attachment: Mechanically attached
Roof fit: Tile and metal roof systems
Technical reference: Lapped and mechanically fastened · Use and exposure limits depend on the assembly
Substrate / format: Compatible roof deck · Published two-square roll

Organic base sheet
Tile and metal role
Assembly compatibility required

From product reference to roofing scope

Choose underlayment as part of the complete roof.

Underlayment sits below the visible roof covering, so its role is easy to overlook. Temperature exposure, deck condition, fastening, dry-in timing, penetrations and the covering system all affect the decision.

Use this manufacturer library to compare product roles. America Roofing can then match the underlayment to the roof covering and define the complete assembly in the estimate.

Product-family questions

Fontana Roof Underlayments FAQs

Straight answers about using the product references during estimate planning.

What is included on the Fontana Roof Underlayments page?

This page brings together 4 underlayment references with visible manufacturer names, images, descriptions and comparison facts. It is organized at the family or system level so related options can be reviewed together.

Can America Roofing use an option shown for Fontana Roof Underlayments?

The page is a product and system reference rather than a stock promise. America Roofing evaluates the property, roof condition and project scope before confirming the practical option for an estimate.

Does selecting Fontana Roof Underlayments determine the complete roof?

No. The visible product or named system is one decision. Deck condition, underlayment or insulation, attachment, flashing, drainage, ventilation and project-specific details still shape the completed roofing scope.

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Get a clear answer about your roof.

Tell us what you are seeing. We will inspect the roof, explain the options, and give you a practical next step—without the canned sales pitch.

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