The CertainTeed WinterGuard Sand Waterproofing Underlayment 3′ x 65′ is a ice & water underlayment for jobs that require CertainTeed model/MPN 653370 in the RL sell unit. WinterGuard Sand and Granular underlayments are designed for use on roof decks as a waterproofing barrier beneath shingle, slate and tile roofs to prevent leakage due to water back-up from ice dams or wind-driven rain.

Key Specs

• Brand: CertainTeed
• Model / MPN: 653370
• SKU: CER653370
• Sell unit: RL
• Product type: Ice & Water Underlayment
• Size / color: 3′ x 32-1/2′
• Category: Residential Roofing | Residential Roofing/Underlayment | Residential Roofing/Underlayment/Ice & Water Underlayment | Underlayment | Underlayment/Ice & Water Underlayment
• Coverage / unit: 1 squares (100 sq ft) per roll

Key Features

• Embedded sand to enhance traction during application
• Improved exposure prior to shingling over
• Very effective under tile

Coverage & How Much You Need

This item is listed as 1 squares (100 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 ice & water underlayment, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

CertainTeed WinterGuard Sand Waterproofing Underlayment 3′ x 65′, sold as RL, with SKU CER653370 and manufacturer model/MPN 653370.

What model or part number should I match?

Match model/MPN 653370 and confirm the brand is CertainTeed. 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 squares (100 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.

Roofing and exterior-envelope work can involve fall hazards, weather exposure, fumes, adhesives, and system-specific installation requirements; follow the manufacturer instructions, OSHA-safe work practices, and local code or use a qualified contractor.

Product Expert Notes

Choose this item when CertainTeed model/MPN 653370, SKU CER653370, and the RL sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.