EMSHIELD WFR2--Guide Specification
Water, Fire, Traffic, Movement Joint

MANUFACTURER'S GUIDE SPECIFICATION: EMSHIELD WFR2 by EMSEAL

SECTION 07 90 00 and 07 95 00 (formerly 05810 / 07102 / 07915)-- SEALANTS, CAULKING, & SEALS

EMSHIELD - WFR2 Watertight, Energy-Efficient, 2-Hour Rated Expansion Joint

The following contains a short-form guide spec as well as a comprehensive performance spec for use at the specifier’s option.  Please call EMSEAL with any questions.  Toll Free: 800-526-8365 or 508-836-0280.  Email: techinfo@emseal.com

***CRITICAL ADDITION TO DIVISION 3—CONCRETE.  Note to specifier:  To facilitate successful expansion joint installation, follow the link below and include the proposed language in Division 3***

General Contractor Expansion Joint Responsibilities [.rtf]

***SHORT-FORM GUIDE SPECIFICATION***

Application: For Watertight, Energy-Efficient, 2-Hour Rated Wall Expansion Joint 

Basis of Design:  EMSHIELD WFR2

USA & INTERNATIONAL:  EMSEAL JOINT SYSTEMS, LTD, 25 Bridle Lane Westborough, MA 01581-2603,

Toll Free: 800-526-8365 or PH: 508-836-0280, FX: 508-836-0281, www.emseal.com.

CANADA:  EMSEAL, LLC, 120 Carrier Drive, Toronto, Ontario, Canada, M9W 5RI Toll Free: 800-526-8365 or PH: 416-740-2090, FX: 416-740-0233, www.emseal.com

Basis of Design: EMSHIELD WFR2 SYSTEM – Watertight, energy-efficient, 2-Hour rated expansion joint by EMSEAL Joint Systems for expansion joints and isolation joints in walls.  Typical locations include applications for exterior wall joints and interior wall joints where a 2-hour fire rating is required or desired.  System shall perform waterproofing, fire-rating, movement-accommodation functions as well as contribute to thermal insulation and sound attenuation as the result of a single installation and without the addition of ancillary fire-blankets, mineral wool, coverplates, etc.

Sealant system shall be comprised of three components: 1) fire-retardant-impregnated foam pre-coated on both sides with an intumescent fire-proofing material and pre-coated at the top layer with waterproof silicone; 2) field-applied epoxy adhesive primer, 3) field-injected silicone sealant bands.  Impregnation agent to have proven non-migratory characteristics. Silicone coating to be low-modulus, waterproof silicone applied to the impregnated foam sealant at a width greater than maximum allowable joint extension and which when cured and compressed will form a bellows.  Product must be proved to have been tested and UL/ULC certified by Underwriters Laboratories to the joint-cycling and fire testing standards of UL 2079.

EMSHIELD WFR2 foam seal to be installed into manufacturer-supplied field-applied epoxy adhesive.  The EMSHIELD WFR2 SYSTEM is to be installed slightly recessed from the surface wall such that when the field-applied injection band of silicone is applied at the installation side between the substrates and the foam-and-silicone-bellows, the system will be essentially flush with the substrate surface.  Material shall be capable of movements of +25%, -25% (50% total) of nominal material size. Standard sizes from 1” (25 mm) to 6” (150mm). Depth of seal is 4” (100mm).    

Factory-fabricated universal-90-degree transition units shall be used to transition all joints into horizontal plane surfaces (decks, floors, etc).  Universal-90-degree transitions pieces to be single units containing minimum 12-inch long leg and 6-inch long leg on each side of the direction change unless modified at the factory for custom installation sizes.  Both outward-facing surfaces of the entire unit to be continuously coated with both the intumescent bellows and over that, waterproof silicone bellows. Factory-fabricated units to be field-joined to straight lengths in accordance with manufacturer’s prescribed methods and supplied joining materials. 

All substitute candidates in addition to having been certified by UL according to UL2079, shall provide certification in writing to be free in composition of any waxes or asphalts, wax compounds or asphalt compounds.  All substitute candidates shall be certified in writing to be: a) capable of withstanding 150°F (65°C) for 3 hours while compressed down to the minimum of movement capability dimension of the basis of design product (-25% of nominal material size) without evidence of any bleeding of impregnation medium from the material; and b) that the same material after the heat stability test will self-expand to the maximum of movement capability dimension of the basis-of-design product (+30% of nominal material size) within 24 hours at room temperature 68°F (20°C). 

***END OF SHORT-FORM GUIDE SPECIFICATION***

***COMPLETE GUIDE SPECIFICATION***

SECTION 07 90 00 and 07 95 00 (formerly 05810 / 07102 / 07915)-- SEALANTS, CAULKING, & SEALS

Application:         Watertight, Energy-Efficient, 2-Hour Fire-Rated Expansion Joints--Basis of Design: EMSHIELD WFR2

USA & INTERNATIONAL:  EMSEAL JOINT SYSTEMS, LTD, 25 Bridle Lane Westborough, MA 01581-2603,

Toll Free: 800-526-8365 or PH: 508-836-0280, FX: 508-836-0281, www.emseal.com.

CANADA:  EMSEAL, LLC, 120 Carrier Drive, Toronto, Ontario, Canada, M9W 5RI Toll Free: 800-526-8365 or PH: 416-740-2090, FX: 416-740-0233, www.emseal.com

PART 1 – GENERAL

1.01            RELATED DOCUMENTS

A.                   The requirements of the GENERAL CONDITIONS, SUPPLEMENTARY CONDITIONS and DIVISION 1 GENERAL REQUIREMENTS apply to the work of this section.

1.02            DESCRIPTION

A.         EMSHIELD WFR2 SYSTEM – Watertight, energy-efficient, 2-Hour rated expansion joint by EMSEAL Joint Systems for expansion joints and isolation joints in walls.  Typical locations include applications for exterior wall joints and interior wall joints where a 2-hour fire rating is required or desired.  System shall perform waterproofing, fire-rating, movement-accommodation functions as well as contribute to thermal insulation and sound attenuation as the result of a single installation and without the addition of ancillary fire-blankets, mineral wool, coverplates, etc.

1.03            RELATED WORK SPECIFIED ELSEWHERE

A.                   CONCRETE

1.04            QUALITY ASSURANCE

A.                    Manufacturer's Instructions: In addition to requirements of these specifications, comply with manufacturer's instructions and recommendations for all phases of work, including preparation of substrate, applying materials, and protection of installed units.

1.05            SUBMITTALS

        General: Submit the following in accordance with (Designer: Insert appropriate section reference for submittals).

A.             Product data in the form of manufacturer's product specifications, installation instructions, and details for each type of expansion joint sealant system indicated.

B.            Samples of same materials to be used in work including certification by Underwriters Laboratories (UL) that product has been tested and certified for UL 2079 and meets the requirements of ASTM E1966, ASTM E119 and ASTM E1399.”  

1.06            PRODUCT DELIVERY, STORAGE AND HANDLING

A.             Deliver materials as factory packaged, sealed, and labeled.  Handle and protect as necessary to prevent damage or deterioration during shipment, handling and storage.

B.             Follow any special instructions by manufacturer or manufacturer’s representative.

1.07            PROJECT CONDITIONS

A.             Substrate Condition:  Proceed with work only when substrate construction and preparation work is complete and in condition to receive sealant system.

B.             Weather Conditions:  Perform work only when existing and forecasted weather conditions are within the guidelines established by the manufacturer of the sealant system.

PART 2 – PRODUCTS

2.01            ACCEPTABLE MANUFACTURERS

A.             Manufacturers known to be able to supply materials as specified:

                EMSEAL JOINT SYSTEMS, LTD, 25 Bridle Lane Westborough, MA 01581-2603, Toll Free: 800-526-8365 or PH: 508-836-0280, FX: 508-836-0281, www.emseal.com.

                CANADA:  EMSEAL, LLC, 120 Carrier Drive, Toronto, Ontario, Canada, M9W 5RI Toll Free: 800-526-8365 or PH: 416-740-2090, FX: 416-740-0233, www.emseal.com 

2.02        MATERIALS

A.    EMSHIELD WFR2 SYSTEM – Sealant system shall be comprised of three components: 1) fire-retardant-impregnated foam pre-coated on both sides with an intumescent fire-proofing material and pre-coated at the top layer with waterproof silicone; 2) field-applied epoxy adhesive primer, 3) field-injected silicone sealant bands.  Impregnation agent to have proven non-migratory characteristics. Silicone coating to be low-modulus, waterproof silicone applied to the impregnated foam sealant at a width greater than maximum allowable joint extension and which when cured and compressed will form a bellows.  Product must be proved to have been tested and UL/ULC certified by Underwriters Laboratories to the joint-cycling and fire testing standards of UL 2079.

B.    EMSHIELD WFR2 foam seal to be installed into manufacturer-supplied field-applied epoxy adhesive.  The EMSHIELD WFR2 SYSTEM is to be installed slightly recessed from the surface wall such that when the field-applied injection band of silicone is applied at the installation side between the substrates and the foam-and-silicone-bellows, the system will be essentially flush with the substrate surface.  Material shall be capable of movements of +25%, -25% (50% total) of nominal material size. Standard sizes from 1” (25 mm) to 6” (150mm). Depth of seal is 4” (100mm).       

C.    Substitute candidates in addition to having been certified by UL according to UL2079, shall provide certification in writing to be free in composition of any waxes or asphalts, wax compounds or asphalt compounds.  All substitute candidates shall be certified in writing to be: a) capable of withstanding 150°F (65°C) for 3 hours while compressed down to the minimum of movement capability dimension of the basis of design product (-25% of nominal material size) without evidence of any bleeding of impregnation medium from the material; and b) that the same material after the heat stability test will self-expand to the maximum of movement capability dimension of the basis-of-design product (+30% of nominal material size) within 24 hours at room temperature 68°F (20°C).

D.    Factory-fabricated universal-90-degree transition units shall be used to transition all joints into horizontal plane surfaces (decks, floors, etc).  Universal-90-degree transitions pieces to be single units containing minimum 12-inch long leg and 6-inch long leg on each side of the direction change unless modified at the factory for custom installation sizes.  Both outward-facing surfaces of the entire unit to be continuously coated with both the intumescent bellows and over that, waterproof silicone bellows. Factory-fabricated units to be field-joined to straight lengths in accordance with manufacturer’s prescribed methods and supplied joining materials. 

PART 3 – EXECUTION

3.01            INSPECTION

A.             Joint surfaces to receive seal shall be sound, smooth, straight, parallel, clean, dry and free of all visible contaminants.  Applications of non-visible coatings or contaminants to surfaces of joint interface area prior to installation of seal shall be controlled by the Architect/Engineer in consultation with the expansion joint manufacturer.

B.             The joint configuration and the joint surfaces shall be as detailed in the drawings and in accordance with the contract specifications and in compliance with requirements in the current material Tech Data available from the Manufacturer. All known detrimental conditions shall be reported immediately in writing.  Field measurements of the depth and width of the joint shall be supplied to manufacturer before material is ordered.

3.02            INSTALLATION

A.             Do not proceed with the installation of joint sealer if the joint is other than designed, until written notification of these conditions is submitted to the manufacturer and design professional, and a written acknowledgement with an order to proceed is provided.

B.            Do not proceed with the installation of joint sealer under adverse weather conditions when joint to be sealed is damp, wet or frozen, or when temperatures are below or above the manufacturer's recommended limitations for installation. Consult manufacturer for specific instructions before proceeding.

C.           Joint sealer/expansion joint material to be installed in strict accordance with the manufacturer's instructions and the advice of their official representative.

3.03            CLEANING AND PROTECTION

A.             Remove all waste materials from site.   Leave work in a condition satisfactory to the Architect/Engineer.

END OF SECTION