Tarco Synthetic Underlayment

Description

LeakBarrier EasyLay™ is a next-generation hybrid roofing underlayment that combines the value of traditional asphalt saturated felts with the performance of synthetic underlayments. EasyLay is an extremely durable, high performance, polyester-based underlayment that is manufactured by coating a polyester fabric with time-proven, moisture-resistant asphalt to provide excellent weatherability and handling.

Usage

EasyLay is designed to be used in asphalt shingle, shake, slate, tile and metal roofing applications.

Features and Benefits

  • Excellent tensile/tear strength and puncture resistance
  • Complies with Florida Building Code High Velocity Hurricane Zone requirements. TAS 103 wind uplift test met 52½ psf.
  • Significantly more durable than synthetic underlayments
  • Asphalt coating allows EasyLay to seal around fasteners
  • Lays flat – does not wrinkle
  • No possibility of delamination as in plastic-based synthetics
  • Non-skid surface provides walkability for slopes up to 10:12, wet or dry
  • Versatile upper surface compatible with selfadhering membranes
  • Algae, fungi and mold resistant
  • Resistant to rot and decay – does not degrade with time
  • Packaged like traditional felt
  • Does not require the use of plastic cap fasteners – can use roofing nails, pneumatic nailers or plastic cap systems
  • Very pliable – easily conforms to rooftop peaks and valleys
  • Approved as an underlayment by metal and tile manufacturers
  • Suitable surface for foam application of tiles
  • Excellent UV resistance – Can be left exposed for up to 6 months without compromising performance
  • UL Class A Fire Rating
  • Meets ASTM D226
  • Florida Building Code Approval FL #10450-R4
  • Miami-Dade County Approval – NOA No. 12-0420.02
  • ICC-ES ESR #2634
  • 25 year Limited Warranty

Storage and Handling

  • EasyLay rolls must be stored in a dry location.
  • Rolls must be stored on end only. Do not store in a leaning position.
  • Rolls must be stored on pallets and not more than one pallet high.
  • Do not store rolls in direct sunlight.

General Precautions

  • EasyLay shall be installed 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.
  • Proper ventilation of the attic is required.
  • EasyLay shall not be torched or hot mopped to.
  • When used in low slope applications (2:12 or lower), EasyLay must be covered the same day. In general, on slopes less than 4:12, a double layer of EasyLay is recommended. Double layer application is best achieved by using 19” 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 surface so as to avoid possible cuts or tears.
  • When tin tags/caps are used to secure EasyLay, 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 waterproof areas of EasyLay where any cuts or tears have occurred.
  • EasyLay is not intended to be used as the weather resistant (primary) roof covering.

Surface Preparation

  • The substrate shall be clean and dry prior to installing EasyLay.

Application

  • Place a full width piece of EasyLay, parallel to the eave (low) edge of the roof.
  • Unroll EasyLay 2 to 3 feet, with the lay lines facing up, and position the end of it to the edge of the eave and rake.
  • Install a few fasteners at the top, near the rake, and roll out the sheet to a manageable length.
  • Pull, straighten and align the sheet so that any wrinkles are eliminated and the sheet is even with the eave edge.
  • EasyLay shall be fastened with 3/8” headed roofing nails or 1” capped plastic nails, driven by hand or pneumatically, spaced 9” o.c. at all laps in the center of the seam area, and two staggered rows fastened 12” o.c. in the field of the sheet, or according to applicable Building Code.
  • When using 1” diameter nails, apply so that the head of the nail is flush with the EasyLay surface, without cutting into the EasyLay surface.
  • Fastening shall be done from the top to avoid walking or kneeling on unsecured sheet.
  • Continue on to the end of the substrate and fasten down.
  • Align the next roll over the preceding sheet so as to form a minimum 4” seam or as per applicable Building Code.
  • Then install sheet, per instructions above.
  • The bottom of the second course of EasyLay shall lay on top of the first course so that any water will flow over the top of EasyLay.
  • Apply subsequent sheets in the same pattern and technique, with minimum 4” side laps and 8” end laps over the preceding sheets or according to applicable Building Code.
  • Install EasyLay a minimum of 6” up any vertical surfaces.
  • Stagger the end laps a minimum of 36” (3’) from the preceding course.
  • After installing EasyLay on the field of the roof, install drip edge at the eaves (if used).
  • When applying EasyLay in the valley, start at the low point and work to the high point, rolling the membrane from the center outward in each direction.
  • Make sure there are no rips or large wrinkles in the EasyLay.
  • Before applying horizontal sections of EasyLay, install a vertical length of EasyLay down the center of the valley.
  • Several sections of EasyLay can be used, but be certain to overlap the higher sections several inches so any water will flow over the top of the sheet.
  • EasyLay underlayment in the valley areas must be covered with metal or other valley lining material.
  • Seams or joints that require adhesive or sealant can be treated with a high quality plastic cement (asbestos free).
  • Prime all metal collars, flashings, valley liners and drip edges with ASTM D41 primer.
  • Flash vent pipes, stacks, chimneys and penetrations in compliance with Roof Assembly current Product Control Notice of Acceptance and applicable Building Code.

Wind and Water – Peel and Stick Underlayment

Description

MFM Wind & Water Seal is engineered for use under all roofing materials including metal, asphalt shingles, shake or concrete shingles, and clay tiles. MFM Wind & Water Seal adheres aggressively to most clean, dry substrates including metal, plywood, OSB, foam insulation, house-wrap, rigid vinyl and masonry.

Features

  • Excellent tensile/tear strength and puncture resistance
  • Complies with Florida Building Code High Velocity Hurricane Zone requirements. TAS 103 wind uplift test met 52½ psf.
  • Significantly more durable than synthetic underlayments
  • Asphalt coating allows EasyLay to seal around fasteners
  • Lays flat – does not wrinkle
  • No possibility of delamination as in plastic-based synthetics
  • Non-skid surface provides walkability for slopes up to 10:12, wet or dry
  • Versatile upper surface compatible with selfadhering membranes
  • Algae, fungi and mold resistant

Tarco UDL 15

EasyLay™ UDL 15

LeakBarrier EasyLay UDL 15 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 textured fabric on the upper surface that provides walkability.

Usage

EasyLay UDL 15 is designed as an alternative to 15# asphalt saturated felt and can be used in conjunction with shingle, shake, slate and metal.  It can be mechanically attached to several substrates, and used in new and re-roofing applications.

Features and Benefits

  • Lightweight; Less than 2.5 lbs per square
  • Can be left exposed for up to six months
  • More coverage per roll than traditional 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
  • Meets and/or exceeds ASTM D226 Type I and II
  • Florida Building Code Approval FL #16884

Storage

  • EasyLay UDL 15 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 UDL 15 shall be installed 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.
  • EasyLay UDL 15 is considered a vapor barrier.  Proper ventilation is critical.  Ensure installation does not interfere with existing ventilation.
  • EasyLay UDL 15 shall not be torched or hot mopped to.
  • On slopes less than 4:12, a double layer of EasyLay UDL 15 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 15 surface so as to avoid possible cuts or tears.
  • When tin tags/caps are used to secure EasyLay UDL 15, 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 15 with any cuts or tears.
  • EasyLay UDL 15 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 15.
  • For re-roofing, all old roofing and other loose materials must be removed prior to installation.

Application Guidelines

  • Place a full width piece of EasyLay UDL 15 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 15 a minimum of 6″ up any vertical surfaces.
  • EasyLay UDL 15 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

PropertyTypical ValuesReference Test
Tensile strength, lbf 70ASTM D1682
Tear resistance, lbf25 ASTM D1922
Pliability at 23°CPassASTM D226
Liquid water transmissionPassASTM D4869
Water vapor transmission, perms0.10ASTM E96
Algae & Fungus resistance, Rank 0 – 40 (no growth)ASTM G21/D3273

Product Data

Product Data
Width48 in (1.22 m)
Length250 ft (76.2 m)
Thickness8 mil (nominal)
Gross Coverage1,000 sq ft (10 sq)
Weight22 lb (nominal)
Rolls per pallet56

Warranty

Tarco Specialty Products, Inc. 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.