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Boral Citadel Plus Peel & Stick SBS Modified Asphalt Base Sheet, 2 Squares per Roll
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Boral Citadel Plus Peel & Stick SBS Modified Asphalt Base Sheet, 2 Squares per Roll
Boral Citadel Plus Base Sheet is an SBS modified asphalt self-sealing underlayment supplied as a 2-square roll. Its peel-and-stick application requires no special tools or hot asphalt, and the SBS core self-seals around nail and screw penetrations. The poly facer adds foot traction and bonds well to cap sheets.
Key Features:
- Self-sealing SBS core: SBS modified asphalt core self-seals around nail or screw penetrations when roofing is mechanically fixed.
- Peel & stick install: Peel-and-stick application requires no special tools and no hot asphalt or mopping.
- Deck sealing: Seals to the roof deck for extra leak protection versus mechanically fastened base sheets.
- Poly facer traction: Poly facer provides excellent foot traction and adhesion to cap sheets.
- High-wind installation: Can be installed in high winds when conditions permit.
- 2 squares per roll: Each roll delivers 2 squares of base sheet coverage.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Boral |
| Sell unit | 1 roll, 2 squares |
| Product line | Boral Citadel Plus Base Sheet |
| Available sizes | 2 Square/Roll |
| Material | SBS modified asphalt with poly facer |
| Nominal size | 2 squares per roll |
| Coverage per unit | 2 squares (200 sq. ft.) per roll |
| Pack quantity | 1 roll |
| Intended use | Ice and water / self-sealing base sheet underlayment beneath roofing |
Coverage & How Much You Need:
One roll covers 2 squares (200 square feet) of roof deck. Add laps per the manufacturer's instruction and plan rolls by dividing the deck area by 2 squares, rounding up for waste and laps.
Fit and Compatibility:
Installed as a base sheet on the roof deck beneath cap sheets or other roofing; the poly facer is designed for good adhesion to cap sheets. Compatible adhesives, cap sheets, and mechanical fasteners are sold separately.
Frequently Asked Questions (FAQ):
Q: How much does one roll cover?
A: Each roll covers 2 squares, or about 200 square feet, before lap allowances.
Q: Do I need hot asphalt or special tools?
A: No. Citadel Plus is peel and stick, requiring no special tools and no hot asphalt for mopping.
Q: What happens around fastener penetrations?
A: The SBS modified asphalt core self-seals around nails and screws, reducing potential leaks versus standard mechanically fastened base sheets.
Q: Can it be installed in wind?
A: The manufacturer states it can be installed in high winds.
Q: What is the facer made of?
A: A poly facer that provides excellent foot traction and good adhesion to the cap sheet.
Q: Is it an ice and water product?
A: It is listed in the ice and water underlayment category as a self-sealing base sheet for deck protection.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Self-sealing peel-and-stick base sheets like Citadel Plus are worth specifying on valleys, eaves, and full decks where leak protection at fastener penetrations matters. Prime or confirm the deck is clean and dry before application, roll it down firmly to bond, and lap per instructions to shed water. Because it installs without hot asphalt, it is a strong choice for high-wind days and occupied buildings.
Peel-and-stick membranes have very aggressive adhesive; watch footing on the poly facer during installation and follow the manufacturer's temperature and substrate requirements.
Add Boral Citadel Plus Base Sheet to your next roofing job for self-sealing, peel-and-stick deck protection.
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