The Atlas Summit Synthetic Underlayment 10 Square/Roll is a synthetic underlayment for jobs that require Atlas model/MPN 805D048 in the RL sell unit. Summit is a lightweight synthetic roof underlayment designed as an alternative to #15 asphalt-saturated felt.

Key Specs

• Brand: Atlas
• Model / MPN: 805D048
• SKU: ATL805D048
• Sell unit: RL
• Product type: Synthetic Underlayment
• Size / color: 5 Square/Roll
• Category: Residential Roofing | Residential Roofing/Underlayment | Residential Roofing/Underlayment/Synthetic Underlayment | Underlayment | Underlayment/Synthetic Underlayment
• Coverage / unit: 5 squares (500 sq ft) per roll

Key Features

• 180-day exposure to UV
• Slip-resistant polymer applied to the bottom surface
• Non-woven top surface for improved walkability
• Will not support mold growth or rot
• Wont buckle, warp, or crack
• Water resistant

Coverage & How Much You Need

This item is listed as 5 squares (500 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 synthetic underlayment, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

Atlas Summit Synthetic Underlayment 10 Square/Roll, sold as RL, with SKU ATL805D048 and manufacturer model/MPN 805D048.

What model or part number should I match?

Match model/MPN 805D048 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 5 squares (500 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 805D048, SKU ATL805D048, and the RL sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.