Technical Specifications

ManualsBrandsAtlas ManualsBuilding materialsSummit® 60 Synthetic Roofing Underlayment 48" x 250' (1,000 sq ft)

AtlasRoofing.com

Features:

• Meets performance characteristics ASTM D4869

and ASTM D226 standards

• Meets ASTM 6757

• 60-day exposure to UV

• Slip-resistant polymer applied to the bottom surface

• Non-woven face for improved walkability

• Will not support mold growth or rot

• Won’t buckle, warp, or crack

• Water resistant

• Temperature performance -40°F to 240°F

Codes & Compliances

• ASTM D6757, Inorganic Shingle Underlayment Standard

• Performance Characteristics Exceed - ASTM D4869, Type l,

Type ll, Type lll, Type lV, (Standard Speciﬁcation For Asphalt

Saturated Felt), ASTM D226 Type I & Type II

• UL Classiﬁed as a Prepared Rooﬁng Accessory

• Florida Building Code Approved - FL 21350

Technical Data

Dimensions

Product Roll (ft

) Roll Size Rolls Per Pallet

Summit® 60 (10 Sq)

1000 48" x 250’ 56

Product Information

Summit® 60 is a lightweight, synthetic roof underlayment

designed as an alternative to #15 asphalt-saturated felt. It

features a woven polymeric scrim for increased strength and

reduced slippage between underlayment and the roof

sheathing. A textured top surface fabric improves walkability

during installation. Summit® 60 can be mechanically fastened to

various substrates, making it an excellent underlayment for both

new and re-rooﬁng applications.

Summit® 60 is oﬀered in 10-square rolls providing more coverage

per roll than traditional felt. It is manufactured with pre-printed

layup lines for easy installation and oﬀers 60-day resistance to

UV breakdown.

Summit® 60 is designed to enhance the life of the roof and

qualiﬁes as an Atlas Signature Select® Rooﬁng System component.

Data Sheet

Property Test Method Specication

Mil Thickness  6 Mil

Tensile Strength

ASTM D228

& D146

Pass

Thermal / UV Stability

Thermal

Stabilizers

Yes

Pliability ASTM D228 Pass

Permeability ASTM E96 0.06 Perms

Meets Performance

Characteristics

ASTM D4869

& D226

Pass

Pliability ASTM D228 Pass

Tear Strength

ASTM D228

& D1922

Pass

Liquid Water

Transmission

ASTM D4869 Pass

Dimensional Stability ASTM D1087 Pass

Temperature Range  40° to 220°

Summary of content (2 pages)

PAGE 1
Data Sheet Product Information Features: Summit® 60 is a lightweight, synthetic roof underlayment designed as an alternative to #15 asphalt-saturated felt. It features a woven polymeric scrim for increased strength and reduced slippage between underlayment and the roof sheathing. A textured top surface fabric improves walkability during installation. Summit® 60 can be mechanically fastened to various substrates, making it an excellent underlayment for both new and re-roofing applications.
PAGE 2
General Instructions Summit® 60 shall be applied to properly ventilated, building code-approved roof decks. Before getting started, be sure the roof deck is clean, solid, properly fastened, and free of voids and/or damages. Begin by unrolling the underlayment from left to right, noting that the printed side should be facing up for installation. Plastic cap fasteners, with a 1” minimum length and 1” minimum cap diameter, must be used to secure Summit® 60 properly.