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Hardwood flooring

Fontana Paper Mill VulcaSeal G40 Fiberglass Modified Tile & Metal Roof Underlayment - 2 Square Roll

$62.84 each

Orders start at $399. Combine any items to reach it.

Quantity
1 item
$62.84
Oversize delivery
$99.00 per order
Sales tax
Added at checkout

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Oversize delivery$99.00

Per order, added in your cart. We deliver to the 48 contiguous states.

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Hardwood flooring

Details & specifications.

From the maker · the maker’s description

Fontana Paper Mill VulcaSeal G40 is a fiberglass-reinforced modified underlayment for tile and metal roofs, supplied as a 2 square roll covering 216 sq ft. It meets ASTM D6757-02 and ASTM D4601-98 and is listed as a UL Type II Glass Base Sheet. One roll is the sell unit.

Coverage & How Much You Need

One roll covers 216 sq ft, rated at 2 squares per roll. When laps are included, the net installed area is less than the roll's nominal area, so plan lap allowances per the tile or metal manufacturer's instructions.

Fit and Compatibility

Intended for use under tile and metal roofing systems as a code-listed underlayment layer. Fasten with cap nails such as Grip-Rite Grip-Cap and seal laps per the roof system manufacturer's details; roofing and fasteners sold separately.

SKU
FPMMG40
Material
Fiberglass-reinforced modified underlayment
Brand
Fontana Paper Mill
Sell unit
1 roll, 2 squares (216 sq ft)
Product line
VulcaSeal G40
Dimensions
216 sq ft per roll (2 squares)
Coverage per unit
216 sq ft (2 SQ per roll)
Approvals
ASTM D6757-02; ASTM D4601-98; UL Type II Glass Base Sheet; UL ER 18554-01
Intended use
Underlayment for tile and metal roof systems
Weight
83.33 lb. per roll

Key features

  • Fiberglass Reinforced: A fiberglass mat gives the sheet dimensional stability and tear resistance under tile and metal roofing.
  • Modified Formula: Modified asphalt construction provides a tougher, more weather-resistant layer than standard felts.
  • 216 sq ft Roll: Each 2 square roll covers 216 sq ft, allowing for standard side and end laps.

Specifications are provided by the manufacturer. Brand names are trademarks of their owners.

Before you ask

Questions about this product.

Rather talk it through? 1.877.490.7099

  • Each roll is rated at 2 squares, covering 216 sq ft; deduct lap allowances from installed coverage.