Atlas WeatherMaster 200 SE Granular Underlayment 36″ x 65′ Black

The Atlas WeatherMaster 200 SE Granular Underlayment 36″ x 65′ Black is a ice & water underlayment for jobs that require Atlas model/MPN 805D300SE in the RL sell unit. WeatherMaster 200 SE (Granular) underlayment is a self-adhesive composite underlayment.

Key Specs

• Brand: Atlas
• Model / MPN: 805D300SE
• SKU: ATLWM2002
• Sell unit: RL
• Product type: Ice & Water Underlayment
• Size / color: 36″ x 65′
• Category: Residential Roofing | Residential Roofing/Underlayment | Residential Roofing/Underlayment/Ice & Water Underlayment | Underlayment | Underlayment/Ice & Water Underlayment
• Coverage / unit: 2 squares (200 sq ft) per roll

Key Features

• UV Protected Surface 45 Day Exposure
• High Temperature Stability 240F
• Self-Adhesive Backing Seals Directly To The Deck

Coverage & How Much You Need

This item is listed as 2 squares (200 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?

Atlas WeatherMaster 200 SE Granular Underlayment 36″ x 65′ Black, sold as RL, with SKU ATLWM2002 and manufacturer model/MPN 805D300SE.

What model or part number should I match?

Match model/MPN 805D300SE and confirm the brand is Atlas. 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 2 squares (200 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 Atlas model/MPN 805D300SE, SKU ATLWM2002, and the RL sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.