BlackKnight 4x250 Synthetic Roofing Underlayment, Professional Grade
Buy Now, Pay Later
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Features
- WHAT'S IN THE BOX: One 4 ft x 250 ft roll covering 10 squares, 1,000 sq ft, plus 50 galvanized plastic cap nails to start your run; additional fasteners sold separately
- 4-Layer Synthetic Protection: Durable professional-grade construction is designed to resist tearing, cracking, and moisture for dependable roof deck coverage.
- High UV Stability: Built for temporary outdoor exposure during roofing projects, with UV resistance for up to 6 months when needed.
- SAFER WALKABILITY: Non-woven top surface provides sure-footed traction, while the slip-resistant base layer helps support easier installation
- EASY INSTALLATION SUPPORT: Printed nail placement guides help simplify alignment and fastening, and included galvanized plastic cap nails support secure installation
Description
BlackKnight 4 ft x 250 ft Professional Grade Synthetic Roofing Underlayment provides a strong protective layer between shingles and the roof deck. Designed with 4 layers of protection, this synthetic underlayment helps guard the home's structure and interior from rain, snow, ice, wind, and moisture. The lightweight material is easier to carry than traditional felt while offering improved durability, tear resistance, and walkability. A non-woven top surface provides sure-footed traction, while the slip-resistant base layer helps support installation in challenging conditions. Printed nail placement guides and included galvanized plastic cap nails help make installation easier and more secure.
Manufacturer: BlackKnight
Part Number: AM-BK-SRU4250
Item Weight: 23.4 pounds
Product Dimensions: 3000 x 48 x 0.01 inches
Item model number: 4X250-Professional Grade
Size: 4X250
Color: Black- Professional Grade
Item Package Quantity: 1
Date First Available: August 12, 2025
Frequently asked questions
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
