The JM DynaGrip Base Poly Film Top/Self-Adhered Bottom 39-3/8″ x 65′ 7″ is a bur & mb systems for jobs that require Johns Manville model/MPN 90001290 in the RL sell unit. DynaGrip Base P/SA is a self-adhering base sheet used in SBS systems.

Key Specs

• Brand: Johns Manville
• Model / MPN: 90001290
• SKU: JM90001290
• Sell unit: RL
• Product type: BUR & MB Systems
• Size / color: 39-3/8″ x 65′ 7″
• Category: Commercial Roofing | Commercial Roofing/Membranes | Commercial Roofing/Membranes/BUR & MB Systems
• Coverage / unit: 2 squares (200 sq ft) per roll

Key Features

• Verify the exact model, size, color, sell unit, and system requirements before ordering.

Coverage & How Much You Need

This item is listed as 2 squares (200 sq ft) per roll. Use the project takeoff, manufacturer installation instructions, and expected waste/overlap to confirm the order quantity.

Compatibility / Fitment

Use this item only when the brand, model/MPN, size/color, sell unit, and system type match the project specification. Do not substitute it for a different bur & mb systems, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

JM DynaGrip Base Poly Film Top/Self-Adhered Bottom 39-3/8″ x 65′ 7″, sold as RL, with SKU JM90001290 and manufacturer model/MPN 90001290.

What model or part number should I match?

Match model/MPN 90001290 and confirm the brand is Johns Manville. If the job spec lists a different model, size, color, or system family, hold for review.

What unit is the price based on?

This listing is built around the RL sell unit. Confirm the unit before comparing price, quantity, or coverage.

How do I estimate quantity?

Use 2 squares (200 sq ft) per roll, then add waste or overlap per the manufacturer instructions and the project design.

What should be checked before purchase?

Confirm the model/MPN, sell unit, size/color, jobsite condition, compatible system components, and any manufacturer installation limits before approving the order.

Verify the manufacturer instructions, local code, and project specification before installation or substitution.

Product Expert Notes

Choose this item when Johns Manville model/MPN 90001290, SKU JM90001290, and the RL sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.