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Alpha-Protech REXTREME Window Tape – Self-Adhering Butyl Flashing Tape, 4 in. or 6 in. x 75 ft Roll, White
Regular price $49.75Orders start at $399 — combine any items to reach the minimum. Learn more
Alpha-Protech REXTREME Window Tape – Self-Adhering Butyl Flashing Tape, 4 in. or 6 in. x 75 ft Roll, White
REXTREME Window & Door Flashing is a premium self-adhering butyl flashing tape for sealing windows, doors and sheathing joints. It meets AAMA 711 Level 3 requirements and applies in a wide temperature range, including below freezing. Each sell unit is one 75-foot roll, available in 4-inch and 6-inch widths in white.
Key Features:
- Premium butyl adhesive: Self-adhering butyl flashing engineered for a tight, flexible water seal even in extreme weather conditions.
- Cold-weather application: Features a wide performance and application temperature range and is suitable for application below freezing.
- Broad adhesion: Shows excellent adhesion to OSB, brick, stucco and metal, as well as all common types of house-wrap.
- Sealant friendly: Can be used in connection with most sealants.
- Self-seals nails: The membrane self-seals around nails and penetrations for a continuous barrier.
- Two widths: Available in 4 in. x 75 ft and 6 in. x 75 ft rolls to match sill, jamb and seam widths.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Alpha-Protech |
| Sell unit | 1 roll, 75 ft |
| Material | Self-adhering butyl flashing |
| Color / finish | White |
| Available colors | White |
| Available sizes | 4 in. x 75 ft; 6 in. x 75 ft |
| Length | 75 ft per roll |
| Width | 4 in. or 6 in. |
| Wind / fire / impact rating | Meets AAMA 711 Level 3 requirements |
| Intended use | Window and door flashing; sealing sheathing seams and rough openings |
| Application temperature | Wide range; suitable for application below freezing |
| Compatible substrates | OSB, brick, stucco, metal and common house-wraps |
Coverage & How Much You Need:
One roll covers 75 linear feet at the chosen tape width (4 in. or 6 in.). Choose the 6-inch roll for sills and wider seams and the 4-inch roll for jambs and lap joints, lapping vertical courses shingle-style.
Fit and Compatibility:
Designed to work with common house-wraps, OSB, brick, stucco and metal substrates, and with most sealants. Sold as a roll only; primers, window and door units, and sealants are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in each order?
A: Each order is one 75-foot roll of REXTREME self-adhering butyl flashing tape, in either 4-inch or 6-inch width.
Q: Can I apply it in cold weather?
A: Yes, the tape has a wide application temperature range and is suitable for application below freezing.
Q: Will it stick to house-wrap and foam sheathing?
A: It shows excellent adhesion to OSB, brick, stucco, metal and all common types of house-wrap; always check substrate condition before applying.
Q: Does it seal around fasteners?
A: Yes, the butyl membrane is designed to self-seal around nails.
Q: Which width should I choose?
A: Use 4-inch for jambs and narrow seams and 6-inch for sills and wider openings where more coverage at the transition is needed.
Q: Can I use sealant over it?
A: Yes, it can be used in connection with most sealants; verify compatibility with your specific sealant.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Order sill flashing in the 6-inch width so the membrane turns well up the rough sill and back onto the WRB; keep 4-inch for jambs and header laps. Press the tape firmly with a roller or glove to activate the butyl bond, and integrate the WRB shingle-style so water drains out over the tape. Because it meets AAMA 711 Level 3 and applies below freezing, it is a strong choice for winter starts where standard rubberized asphalts get stiff.
Wear cut-resistant gloves when handling and trimming the tape roll, and follow the manufacturer's installation sequence for openings and WRB transitions.
Order Alpha-Protech REXTREME Window Tape today and seal your openings with confidence in any season.
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