EasyLay UDL HT

HOMEEasyLay UDL HT

High-Temperature Self-Adhered Synthetic Roofing Underlayment

LeakBarrier EasyLay UDL HT

LeakBarrier EasyLay UDL HT is a state-of-the-art roof underlayment that combines the salient features of a synthetic membrane with revolutionary self-adhesive technology in order to deliver exceptional long-term weather barrier performance. Manufactured using a multi-laminate configuration consisting of non-woven poly fabric, UV stabilized polyolefinic coating, and woven poly scrim that provides a non-abrasive surface with good walkability, EasyLay UDL HT has an aggressive self-adhesive modified bituminous compound on the back side that is self-sealing around nails and can adhere to a variety of substrates.

Usage

LeakBarrier EasyLay UDL HT is used in shingles, shake, slate, tile, and metal roofing applications. Designed for use in steep-slope roofing, it can be utilized in new roofing and re-roofing applications as well. EasyLay UDL HT is ideal for use in high temperature environments.

Features and Benefits

  • Specially formulated SBS compound with 250°F temperature rating
  • Highly durable sheet that can be used in a variety of applications
  • Rubberized asphalt adhesive layer and multi-laminate polymeric upper surface form two distinct water barriers
  • Specially formulated SBS compound facilitates a pliable sheet that easily conforms to rooftop peaks and valleys
  • Self-sealing around fasteners
  • 180-Day UV Exposure
  • Enhanced Durability Performance
  • High tensile and tear strengths
  • Textured fabric provides good walkability
  • Excellent wind resistance: Helps eliminate roof blow off
  • Pre-printed lay lines for easy installation
  • Adheres to a variety of substrates
  • Instant watertight laps
  • Meets ASTM D1970
  • Miami-Dade County NOA No. 26-0507.01
  • Florida Building Code FL 10450

Storage

  • LeakBarrier EasyLay UDL HT rolls must be stored indoors, in a dry location.
  • Rolls must be stored on end only. Do not store in a leaning position.
  • Rolls must be protected from the elements. Do not expose to direct sunlight.
  • Store rolls at room temperature. Prolonged exposure to elevated temperatures may reduce the adhesive characteristics of the material

General Precautions

  • Install LeakBarrier EasyLay UDL HT in strict compliance with applicable Building Code.
  • Follow Occupational Safety and Health Administration (OSHA) safety standards; use common sense measures and adequate precautions to prevent accidents.
  • Install rolls only when material interface temperatures (air, deck, material) are 40°F and rising.
  • Do not install when any form of moisture such as water, ice, snow, dew, rain, etc. is present.
  • Ensure roof has positive slope and drainage prior to installation.
  • EasyLay UDL HT is considered a vapor barrier. Proper ventilation is critical. Ensure installation does not interfere with existing ventilation.
  • When applying over the entire roof deck, the roofing system must provide sufficient ventilation.
  • A full, irreversible adhesion is achieved when the underlayment goes through a complete heat cycle. Do not not attempt to remove the underlayment immediately after adhesion to the substrate.
  • Use of a hand-held “hot air gun” might help in enhancing the adhesion during application of underlayment in cooler weather.
  • EasyLay UDL HT shall not be torched or hot-mopped to.
  • When installing copper or zinc roofing over EasyLay UDL HT, it is required to use a batten system.
  • EasyLay UDL HT must be covered with a finished roof covering within the specified exposure time of the product. Refer to section on Features and Benefits for exposure time.

Surface Preparation

  • The substrate shall be clean, dry, and without voids when installing LeakBarrier EasyLay UDL HT.
  • Consult applicable Technical Bulletin at the Tarco website prior to installation.
  • Old roofing and other loose material must be removed before installation.
  • Acceptable substrates for adhesion of LeakBarrier membranes can be found at the Tarco website.
  • Surface may be primed with an ASTM D41 primer, water-based acrylic primer or water-based modified primer prior to installing EasyLay UDL HT. If primer is used, ensure it is fully dry before application of the membrane

Application Guidelines

Properties

Property Typical Values Reference Test
Max. Load, MD/XMD, lbf/in 140/80 ASTM D1970
Elongation, Mod. Bit. Portion >200% ASTM D412 (Die C)
Elongation at Break, MD/CD 25% / 25% ASTM D1970
Adhesion to Plywood @ 40°F 4 lb/ft of width ASTM D903
Adhesion to Plywood @ 75°F 24 lb/ft of width ASTM D903
Thermal Stability, Max. 0.1 in ASTM D1970
Compound Stability 250°F ASTM D1970
Flexibility Temperature -20°F ASTM D1970
Tear resistance, MD/CD, lbf 190 / 165 ASTM D1970
Slip Resistance Pass ASTM D1970
Moisture Vapor Permeance 0.1 US Perm or Less ASTM E96
Sealability Around Nails Pass ASTM D1970
Waterproof Integrity of Lap Seams Pass ASTM D1970

Product Data

Product Data  
Width 36 in
Length 66 ft 8 in
Thickness 45 mil (nominal)
Gross Coverage 200 sq ft
Weight 45 lb (nominal)
Rolls per pallet 30

Warranty

Tarco Specialty Products, Inc. offers a 30 Year Limited 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.