BITEC Imperflex USA MSA Smooth Base Sheet

The BITEC Imperflex USA MSA Smooth Base Sheet is a bur & mb systems for jobs that require BITEC model/MPN F0132891 in the RL sell unit. Imperflex USA is a smooth-surfaced SBS polymermodified bitumen base sheet or interply, intended specifically for use in Imperflex roof systems.

Key Specs

• Brand: BITEC
• Model / MPN: F0132891
• SKU: BITF0132891
• Sell unit: RL
• Product type: BUR & MB Systems
• Size / color: 3.28' x 45.75'
• Category: Commercial Roofing | Commercial Roofing/Membranes | Commercial Roofing/Membranes/BUR & MB Systems
• Coverage / unit: 1.5 squares (150 sq ft) per roll

Key Features

• Imperflex USA is composed of select SBS polymers blended with distilled asphalt and reinforced with high strength fiberglass mat
• The membrane is protected on the bottom by a split, silicon coated release film, which must be removed before installation
• The release film prevents the roll from sticking during storage and aids in installation

Coverage & How Much You Need

This item is listed as 1.5 squares (150 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?

BITEC Imperflex USA MSA Smooth Base Sheet, sold as RL, with SKU BITF0132891 and manufacturer model/MPN F0132891.

What model or part number should I match?

Match model/MPN F0132891 and confirm the brand is BITEC. 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 1.5 squares (150 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 BITEC model/MPN F0132891, SKU BITF0132891, and the RL sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.