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Home My WebLink AboutShur-GardHUForceHTunderlayTech Mule-Hide Products Co., Inc. Page 1 of 3 PDS 09-1501 Product Data Sheet Shur-Gard MU Force HT DESCRIPTION Feb 2021 Shur-Gard MU Force HT is fiberglass reinforced SBS polymer modified, high-temperature underlayment with a unique slip-resistant film surface for use under metal roofing materials. Approved to perform up to 250°F, this product provides additional protection in high temperature applications. Conforms to ASTM D1970. BASIC USES • Specifically designed as an underlayment for high temperature applications. • Approved for use under metal panels and mechanically attached tile. TYPICAL PHYSICAL PROPERTIES Physical Properties and Typical Performance Physical Property ASTM Testing Method Typical Results Maximum load MD/CD min D2523 / D1970 ≥ 25 lbf/in Elongation at break D2523 / D1970 ≥ 10% Adhesion to plywood, min @ 40°F D903 / 1970 ≥ 2.0 lbf/ft Adhesion to plywood, min @ 75°F D903 / D1970 ≥ 12.0 lbf/ft Low temperature flexibility, max D1970 Pass Moisture Vapor Permeance E96 ≤ 0.1 U.S. perms Sealability Around Nail D1970/ D7349 Pass Waterproof Integrity of Lap Seam D1970/ D7349 Pass PACKAGING 28 rolls per pallet, roll size is 39 3/8” x 66’ Weight: 68 lbs per roll (nominal) Coverage: 200 SF per roll Thickness: 60 mils FEATURES AND BENEFITS • Unique “textured” slip resistant surface – greater feeling of safety and security while walking. • Exceptional SBS rubberized adhesive backing – unique modified bitumen formulation with wide temperature installation range and great nail/screw seal ability. • Highly pliable fiberglass mat reinforcement – conforms easily to valleys, corners and angles. • 180-day UV exposure – longer dry-in time and greater protection from temporary exposure. • Florida Building Code, Miami-Dade County, and Texas Department of Insurance approvals are pending. STORAGE & HANDLING Shur-Gard MU Force HT membranes should be stored in their factory applied packaging. It is recommended that self-adhered products be stored inside a dry, protected warehouse at a temperature not exceeding 110°F. Mule-Hide recommends a maximum of 2 levels of stacking of all self-adhered products while in protected storage as stacking higher may damage the material. Mule-Hide Products Co., Inc. Page 2 of 3 PDS 09-1501 Product Data Sheet Shur-Gard MU Force HT APPLICATION TEMPERATURES Apply only when material interface temperatures are 40°F and rising. Lower temperatures will result in lower tack and reduced adhesion. If low temperatures are present during installation, product may be back nailed to hold sheet in position during installation. As temperatures rise, adhesive will activate and bond with substrate and seams. APPLICATION PREPARATION: • Ensure the deck is dry, smooth and without voids or unsupported areas. Remove any existing nails, fasteners or staples. All decayed, rotting, rusted or broken materials must be removed and replaced before installing roof underlayments. • Deck must be in sound condition, stable and secured to sound framing with the correct fasteners, clips and spacing as per local building codes and or roofing manufacturers’ published specifications. • If using new OSB sheathing or plywood, a gap should be left between sheets to allow for expansion and contraction of new sheathing and prevent bulging and ridges from forming. Spacing should be approximately 1/8" at end joints and 3/16" at side joints; however, verify with roof covering manufacturer’s specifications. • To help alleviate expansion and contraction of new OSB or plywood, allow the material to be pre- conditioned prior to installation. Always ensure adequate roof and attic ventilation when applying waterproofing membranes. • Priming is not required for clean and dry roof decks made of wood. Concrete and masonry deck surfaces require priming with Mule-Hide 121 Asphalt Primer. INSTALLATION: • Always follow local buildings codes for your specific region. Apply Shur-Gard MU Force HT horizontally starting at the bottom edge of the roof with surface material side up. Roll out materials onto existing roof deck and cut sheet to a suitable, workable length prior to placement. • Align sheet with the lower edge of the roof (at the rake or side edge of roof) with the sheet extending over 1/4". Applications may require tacking of nails along upper edge of membrane to hold in place. • Standing above the sheet on the roof deck, remove top half of release film from the sheet and apply firm even pressure from the center to the outer edges. • Remove the release film from the remaining half of the sheet applying firm even pressure. • Install working up the slope of the roof, ensuring a minimum overlap of 3" on side laps and 6" on end laps. Where back nailing is required, be sure that all nails are covered by the overlapping next sheet. • Immediately after installation, roll entire membrane surface, first rolling side to side across the membrane then roll end to end. Be sure to roll end laps and side laps to ensure bonding of adhesive. • Roller weight shall be a minimum of 70 lbs. for low slopes and approximately 28 lbs. for steep slopes. VENTILATION: • This product is designed to be an air, water and vapor barrier and will retard the flow of moisture vapors when applied over the entire roof deck. • In this application, ensure the roof and attic are properly vented. Lack of ventilation can result in presence of moisture and deck deterioration and/or mold. • Always consult a design professional to address potential moisture entrapment and condensation issues. • This can be in the form of ridge vents, solar / power vents, continuous ceiling vapor barriers or other ventilation products. Proper ventilation will help alleviate these concerns. In hot and arid climates, heat build-up can result in drying, cracking and premature aging of roofing materials and therefore venting is also required. Mule-Hide Products Co., Inc. Page 3 of 3 PDS 09-1501 Product Data Sheet Shur-Gard MU Force HT PROTECTION & SAFETY Mule-Hide maintains Safety Data Sheets on all of its non-exempt products. Safety Data Sheets contain health and safety information for your development of appropriate product handling procedures to protect your employees and customers. Mule-Hide Safety Data Sheets should be read and understood by all of your supervisory personnel and employees before using Mule-Hide products in your facilities. ADDIT IONAL INFORMATION The information given on this PDS is subject to change without notice. Always check the Mule-Hide website at www.mulehide.com for the latest information, changes and updates or contact Mule-Hide Products Co., Inc. at 800-786-1492. DISCLAIMER The statements provided concerning the material shown are intended as a guide for material usage and are believed to be true and accurate at the time of printing. No statement made by anyone may supersede this information, except when done in writing by Mule-Hide Products Co., Inc. Since the manner of use is beyond our control, Mule-Hide does not authorize anyone to make any warranty of merchantability or fitness for any particular purpose or any other warranty, guarantee or representation, expressed or implied, concerning this material. This product may be eligible for a Mule-Hide warranty, please check the Mule-Hide website at www.mulehide.com or contact Mule-Hide directly at 800-786-1492 for details. Buyer and user accept the product under these conditions and assume the risk of any failure, any injury person or property (including that of the user), loss or liability resulting from the handling, storage or use of the product whether or not it is handled, stored or used in accordance with the directions or specifications. Mule-Hide must be notified in writing of any claims and be given the opportunity to inspect the alleged failure before repairs are made.