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Summit® 60 is a lightweight synthetic roof underlayment designed to enhance the life of a roof system through superior water resistance and UV protection.
A synthetic alternative to #15 felt, Summit® 60 underlayment provides enhanced protection against water and mold growth. Made with a woven polymeric scrim, Summit® 60 features increased strength, reduced slippage between the underlayment and the roof sheathing and improved walkability during installation. This high-quality synthetic roof underlayment will not buckle, warp or crack over time like organic felt and the UV coating allows for 60-day exposure to the sun while the roof is being installed.
Summit® 60 synthetic roof underlayment will continue to protect and enhance the life of the roof and protect homes from water and mold growth for many years to come.
Technical & Installation Details
Where To Buy
Get It Installed
For maximum protection and warranty coverage, install an Atlas Signature Select® Roofing System with components designed and backed by an Atlas Warranty.
1Atlas WeatherMaster®Ice & Water Underlayment
3Atlas Pro-Cut®Starter Shingles
4Atlas Roof Shingles
5Atlas Pro-Cut®Hip & Ridge Shingles
Length: 250' Width : 48" Square Per Roll Coverage: 10 Coverage With 4" Lap: 917 Square Feet
Meets ASTM D6757, Inorganic Shingle Underlayment Standard Exceeds ASTM D-4869, Type l, Type ll, Type lll, Type lV (Standard specification for asphalt saturated felt) Exceeds ASTM D226, Type I and Type II
UL Classified as a Prepared Roofing Accessory Florida Building Code Approved - FL 16226
Learn and observe safe roofing practices according to OSHA and local building code requirements. Always use caution when walking on sloped roof decks and Summit® 60 underlayment. Do not walk on unsecured Summit® 60 or any other loose material lying on sloped roof decks. Dust, dew, water and debris create unsafe conditions on the roof. The presence of any foreign matter may drastically change the coefficient of friction (traction) on Summit® 60 or any other material on a sloped roof deck. Failure to always use proper safety equipment and footwear can result in serious injury or even death.
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. To secure, follow along the indicated fastener placement lines at the top and bottom to space fasteners at 9" o.c. horizontally. Then, follow along the indicated center lines to space fasteners at 12" o.c.
When more than one piece is required to continue a course, overlapping is necessary. The overlaps at the top and bottom should be a minimum of 4". The fasteners should be placed 2" in from the edge of the top and bottom laps. The end overlaps should be 12" minimum and fastened vertically at 12" o.c., staying 2" in from the end of the top layer.
The plastic cap fasteners should be driven tightly in the surface of the Summit® 60, being careful not to cut into the sheet. If any damage to Summit® 60 occurs, it must be repaired before continuing on to the next step. Peel and stick flashing tape (or equivalent) can be used to repair seams, joints, and tears. Cold applied adhesives may be used at this point to supplement seal joints, flashings, and overlaps.
For best results, Summit® 60 should be extended at least 12" past all hips and valleys. Summit® 60 is recommended for use on 4:12 to 7:12 roof slope. If Summit® 60 is being installed on decks with less than 4:12 slopes, it should be applied in a double coverage method. Here, the overlap of each installed course should be 24", rather than the normal 4". It is acceptable to drive the fasteners through both layers to secure.
Always follow the ARMA (Asphalt Roof Manufacturing Assn.) recommendations for installing shingle underlayments and flashings for best roofing practices.
Note: If local building code or jurisdiction requires the use of metal cap fasteners in lieu of plastic cap fasteners, clear latex sealant must be added to the underside of every metal cap and nail head if the roof needs to be kept watertight during installation. Examples where complete water tightness may not be a primary concern are new construction with unfinished interiors or re-roofing applications where the final roof covering is installed immediately. Product tears, leaks, or any other product performance issues due to the use of metal/tin cap fasteners is not covered under the product warranty.
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