LeakBarrier EasyLay UDL Builder Grade is a value-priced, synthetic roof underlayment that has good resistance to the elements. The material consists of a woven polymeric scrim that imparts strength and a good walkable surface.

Usage

EasyLay UDL Builder Grade is designed as an alternative to 15# asphalt saturated felt and can be used under shingles. It can be mechanically attached to several substrates, and used in new and re-roofing applications.

Features and Benefits

• Lightweight; less than 2 lbs per square
• More coverage per roll than traditional felt
• Alternative to traditional ASTM D226 Type I and II felt
• Good pliability and low temperature flexibility
• Pre-printed lay lines for easy installation
• Algae, fungi, and mold resistant; does not rot or decay
• 100% recyclable
• Can be left exposed for up to 90 days
• Meets ASTM D8257
• Engineered to comply with applicable IBHS FORTIFIED Roof™ program requirements for synthetic underlayments

Storage

• EasyLay UDL Builder Grade must be stored in a dry location.
• Rolls must be stored on pallets and not more than one pallet high.
• Do not store rolls in direct sunlight.

General Precautions

• EasyLay Builder Grade shall be installed in strict compliance with applicable Building Code.
• Following Occupational Safety and Health Administration (OSHA) safety standards; use common sense measures and adequate precautions to prevent accidents.
• EasyLay UDL Builder Grade is considered a vapor barrier. Proper ventilation is critical. Ensure installation does not interfere with existing ventilation.
• EasyLay UDL Builder Grade shall not be torched or hot mopped to.
• On slopes less than 4:12, a double layer of EasyLay UDL Builder Grade is recommended. Double layer application is best achieved by using 24” side laps, making sure the side laps are “shingled in” to shed water.
• Ensure that sharp objects such as debris, stones, bricks, etc. are not dropped on to the EasyLay UDL Builder Grade surface so as to avoid possible cuts or tears.
• When tin tags/caps are used to secure EasyLay UDL Builder Grade, the material shall be covered immediately after application with an approved underlayment or a suitable roof covering.
• Apply a thin coat of asphalt-based roofing cement to areas of EasyLay UDL Builder Grade with any cuts or tears.
• EasyLay UDL Builder Grade is not intended to be used as the primary weather resistant roof covering.

Surface Preparation

• The substrate shall be clean and dry prior to installing EasyLay UDL Builder Grade.
• For re-roofing, all old roofing and other loose materials must be removed prior to installation.

Application

• Place a full width piece of EasyLay UDL Builder Grade, parallel to the eave (low) edge of the roof.
• Unroll the material 2 to 3 feet and position the end of it to the edge of the eave and rake.
• Install a few fasteners near the rake and roll out the sheet to a manageable length.
• Straighten and align the sheet to eliminate any wrinkles.
• Fasten the sheet using 3/8” headed roofing nails or 1” plastic capped nails, spaced 9” o.c. at all laps and two staggered rows fastened 12” o.c. in the field, or as per applicable Building Code. In HVHZ Jurisdictions, the sheet shall be fastened 6" O.C. at all laps and three staggered rows fastened 12" O.C. in the field of the sheet..
• When using 1” diameter nails, apply such that the head of the nail is flush with the sheet surface, without cutting into the sheet.
• Fasten the sheet from the top edge to avoid walking or kneeling on the unsecured portion.
• Align the next sheet over the preceding sheet so as to form a minimum 4” side lap and 8” end lap or as per applicable Building Code. 
• Then install the sheet as per instructions above. Install such that the bottom of the second course is over the top of the first course so that any water will flow over the underlayment.
• Stagger the end laps a minimum of 36” (3 feet) from the preceding course.
• Install EasyLay UDL Builder Grade a minimum of 6” up any vertical surfaces.
• EasyLay UDL Builder Grade used in valley areas must be covered with metal or other valley liners.
• Seams or joints that require adhesive or sealant can be treated with plastic cement.
• Flash vent pipes, stacks, chimneys, and penetrations in compliance with applicable codes.

Properties

Product Data

Warranty

Tarco Specialty Products offers a 20-Year Limited Material Warranty.

NOTE: All statements, information and data, given herein are believed to be accurate and reliable but are presented without guaranty, warranty or responsibility of any kind, expressed or implied, except as may be indicated otherwise in this literature. Statements or suggestions concerning possible use of our products are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent.