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	SECTION 07270
	FLUID APPLIED AIR BARRIERS
	** NOTE TO SPECIFIER ** Hohmann & Barnard, Inc.; air and vapor barrier. . This section is based on the products of Hohmann & Barnard, 1nc., which is located at: 30 Rasons Ct. P. O. Box 5270 Hauppauge, NY 11788-0270 Toll Free Te1: (800) 645-0616 Te1: (631) 234-0600 Fax: (631) 234-0683 Email: weanchor@h-b.com Web: http://www.h-b.com Hohmann & Barnard, founded in 1933, is known worldwide for quality fabrication and innovative design of anchor and reinforcement systems for masonry. Hohmann & Barnard products are used widely in all 50 states, Asia, the Middle East, North Africa, and South America. The product line includes numerous established anchors and reinforcements including adjustable reinforcement systems, metal stud and brick veneer anchors, rigid and flexible anchors, and seismic anchors. Other products offered include rubber and PVC control joints, expansion sponge, partition top anchors, and Mortar Net. Flashing products of all kinds are available and Hohmann & Barnard has a full line of mechanical and epoxy repair anchors.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Fluid-applied membrane air barrier, vapor retarding.
		B.	Fluid-applied membrane air barrier, vapor permeable.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 04200 - Masonry Units: For embedded flashings.
		B.	Section 06160 - Sheathing: For wall sheathings, wall sheathing joint-and-penetration treatments, building paper, and building wraps.
		C.	Section 07210 - Thermal Insulation: For foam-plastic board insulation.
		D.	Section 07620 - Sheet Metal Flashing and Trim: For sheet metal flashings.
		E.	Section 07920 - Joint Sealants: For joint-sealant materials and installation.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	ABAA - Air Barrier Association of America.
		B.	ASTM C 836 - Standard Specification for High Solids Content , Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use Separate Wearing Course.
		C.	ASTM C 1250 - Standard Test Method for Nonvolatile Content of Cold Liquid-Applied Elastomeric Waterproofing Membranes.
		D.	ASTM E 96 - Standard Test Methods for Water Vapor Transmission of Materials.
		E.	ASTM E 2178 - Standard Test Method for Air Permeance of Building Materials.
	1.4	SYSTEM DESCRIPTION
	** NOTE TO SPECIFIER ** TextroFlash air/vapor barrier. Delete if not required.
		A.	Vapor-Retarding Air Barrier: Air barrier shall be capable of performing as a continuous vapor-retarding air barrier and as a liquid-water drainage plane flashed to discharge to the exterior incidental condensation or water penetration. Air barrier assemblies shall be capable of accommodating substrate movement and of sealing substrate expansion and control joints, construction material changes, and transitions at perimeter conditions without deterioration and air leakage exceeding specified limits.
	** NOTE TO SPECIFIER ** TextroFlash VP air barrier/vapor permeable. Delete if not required.
		B.	Vapor-Permeable Air Barrier: Air barrier shall be capable of performing as a continuous vapor-permeable air barrier and as a liquid-water drainage plane flashed to discharge to the exterior incidental condensation or water penetration. Air barrier assemblies shall be capable of accommodating substrate movement and of sealing substrate expansion and control joints, construction material changes, and transitions at perimeter conditions without deterioration and air leakage exceeding specified limits.
	1.5	SUBMITTALS
		A.	Submit under provisions of Section 01330.
		B.	Product Data: Manufacturer's data sheets on each product to be used, including:
			1.	Preparation instructions and recommendations.
			2.	Storage and handling requirements and recommendations.
			3.	Installation methods.
		C.	Product Certificates: For air barriers, certifying compatibility of air barrier and accessory materials with Project materials that connect to or that come in contact with the barrier; signed by product manufacturer.
		D.	Qualification Data: For Applicator.
		E.	Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for air barriers.
		F.	Closeout Submittals: Warranty information and completed Registration form.
	** NOTE TO SPECIFIER ** Delete LEED requirements if not required.
		G.	LEED Documentation Submittals:
			1.	Credit EQ 4.2: Manufacturers' product data for fluid applied coatings, including printed statement of VOC content and chemical components.
			2.	Credit MR 5.1: Product Data indicating location of manufacturer for regionally manufactured materials.
				a.	Installed Products: Coatings; Include statement indicating cost of coatings and distance from manufacturer to Project site.
				b.	Raw Materials Used in Manufacture of Coatings: Include statement indicating cost and distance from point of extraction or recovery to Project site for each raw material used in the manufacture of coatings.
	1.6	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: Minimum five year manufacturing experience and capability for design, engineering and technical assistance for the selection, application, and installation of appropriate air and moisture barrier systems for the project.
	** NOTE TO SPECIFIER ** User friendly- "open and go" (other brands can require weeks of training and two mixing systems)
		B.	Installer Qualifications: Experienced in the proper use and installation of air and moisture barrier systems, including coordination with wall assembly components.
		C.	Certification: Provide building code evaluation approving product for application.
	** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
		D.	Mockups: Before beginning installation of air barrier, build mockups of exterior wall assembly, incorporating backup wall construction, external cladding, window, door frame and sill, insulation, and flashing to demonstrate surface preparation, crack and joint treatment, and sealing of gaps, terminations, and penetrations of air barrier membrane.
	1.7	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
	1.8	PROJECT CONDITIONS
		A.	Apply air barrier within the range of ambient and substrate temperatures recommended by air barrier manufacturer. Protect substrates from environmental conditions that affect performance of air barrier. Do not apply air barrier to a damp or wet substrate or during snow, rain, fog, or mist. Do not install products under environmental conditions outside manufacturer's absolute limits.
			1.	The air temperature for application shall not be less than 26 degrees F (-3 degrees C); however, the product shall not be allowed to freeze in the container or application equipment. There shall be no maximum air temperature application limit.
	1.9	WARRANTY
		A.	LIMITED 10 YEAR WARRANTY
			1.	Manufacturer provides a Limited 10-Year Warranty for the membrane air/vapor barrier. The Limited Warranty is measured from the date of the completion of the application of the Product.
	** NOTE TO SPECIFIER ** This Limited Warranty is for all first consumer purchases of a single story foundation: (1) single family detached residences, (2) multi-family units with separate unit ownership, or (3) multi-family residences with single ownership, which has had TEXTROFLASH LIQUID applied in accordance with product directions and specifications, to the vertical walls of the building's poured concrete, single story foundation. This Limited Warranty covers the specified persons' single-story foundation from water leakage and seepage through the areas of single story foundations coated by the TEXTROFLASH LIQUID under normal use.
			2.	Should the product permit water or seepage into the residence, manufacturer shall provide replacement of product or repair the coating in the area in question as the resolution. Manufacturer will have the sole option to select the best method for resolution of the leakage or seepage.
	** NOTE TO SPECIFIER ** HOHMANN & BARNARD will be responsible for the cost of any replacement product of TEXTROFLASH LIQUID required and, if necessary, pay for labor costs of re-coating the area in question within a reasonable time. The total responsibility of HOHMANN & BARNARD during the life of this Limited Warranty shall not exceed the lesser of (1) One Dollar Fifty Cents ($1.50) per square foot of foundation wall covered with TEXTROFLASH LIQUID and requiring repair, or (2) a total of Two Thousand Five Hundred Dollars ($2,500.00). ** NOTE TO SPECIFIER ** HOHMANN & BARNARD excludes responsibility for certain costs and expenses. HOHMANN & BARNARD is not responsible for removing or replacing any obstacles that affect or may affect repair or contribute to damage. HOHMANN & BARNARD is not responsible for removing or replacing soil, trees, grass, or other landscaping. HOHMANN & BARNARD is not responsible for removing or replacing any obstacles on the interior or exterior of the wall which may include, but are not limited to steps, garage or garage floors, patio or patio floors, decks, etc. HOHMANN & BARNARD is not responsible for removing or replacing interior wall furnishings or fixtures, which may include, but are not limited to, carpeting, furniture, wall hangings, wallboard, etc. ** NOTE TO SPECIFIER ** The Limited Warranty excludes water leakage or seepage and wall damage that is in whole or part caused by: (1) cracks or defects greater than 1/16 inch (1.6 mm) which may include, but are not limited to, structural defects of the walls, footings or foundations, etc. of the structure irrespective of the cause; (2) damage to the coating membrane from backfilling which may include, but is not limited to stone in the backfill, construction debris, etc.; (3) improper drainage above, below or around the building or the foundation walls resulting from improper construction methods and methods not meeting or exceeding those of the local construction codes at the time of the application of TEXTROFLASH LIQUID; (4) defective or inadequate interior, exterior or interior/ exterior drainage systems; (5) insufficient grading that does not slope away from the structure sufficiently to drain water away or that results in the grade line extending above the TEXTROFLASH LIQUID application line, which can allow for water to penetrate above the coated area; (6) insufficient hydrostatic resistance at the exterior base of the foundation wall or across any floor within the foundation walls, which can allow for water to penetrate and migrate through joints where the floor meets the walls or into the structure through basement floors or drains; (7) defective or inadequately functioning gutters and downspouts; (8) interior condensation on foundation walls or interior finish; (9) intrusions or alterations of the waterproofed walls after installation of TEXTROFLASH LIQUID; such as cables, ducts, opening for pipes, etc.; (10) use of expansion joints in the design of the structure of the wall; or (11) construction techniques that allow for entrance of water above, below or behind the wall coated with TEXTROFLASH LIQUID; or (12) failure to follow all required installation and application requirements including, but not limited to, failure to allow required cure time before leakage or seepage when a wall coated with TEXTROFLASH LIQUID is in contact with any other surface including, but not limited to, backfill, soil, protection board, or foundation drainage systems. HOHMANN & BARNARD is not responsible for leakage or seepage due to the installation of any object with may penetrate the surface.
			3.	e Limited Warranty only applies to the installation or application of product by an authorized contractor approved by the manufacturer.
			4.	e Limited Warranty excludes any implied warranty of merchantability or implied warranty of fitness. No other warranties other than those expressly provided for herein are given. This limited warranty excludes any consequential or incidental damages for breach of any written or implied warranty made with regard to the product.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Hohmann & Barnard, Inc., which is located at: 30 Rasons Ct. P. O. Box 5270 ; Hauppauge, NY 11788-0270; Toll Free Tel: 800-645-0616; Tel: 631-234-0600; Email: request info; Web: www.h-b.com
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	2.2	FLUID APPLIED MEMBRANE AIR AND VAPOR BARRIER
		A.	Product: Textroflash Liquid Air and Vapor Barrier as manufactured by Hohmann & Barnard, Inc.
		B.	Material: Modified Emulsion Coating shall be a latex modified asphalt emulsion, 100% asbestos-free, with polymers and additives to formulate a waterproof coating.
		C.	Certification: Evaluation Report ESR-1490, Reissued August 1, 2006, ICC Evaluation Service, Inc.
		D.	Performance:
			1.	Color: Black.
			2.	Air Permeance (ASTM E 2178): 0.00159 perm.
			3.	Water vapor Permeance (ASTM E 96): 0.1 perm avg.
			4.	Application Rate: 40 mils dry.
			5.	Solids (%) (ASTM C 1250): 64 +/- 3% minimum by weight.
			6.	Density: 8.1 Lbs/Gal +/- 4 (0.92 G/Cm2).
			7.	Application: Airless spray, brush or roller.
	** NOTE TO SPECIFIER ** Film cure within 10 minutes (other brands can require up to 48 hours). Can begin next phase of construction within 24 hours (other brands can require up to 3 weeks).
			8.	Cure Time: 4-24 hours.
			9.	Elongation: 1850% minimum.
			10.	Adhesion to Concrete: Excellent.
			11.	Low Temperature Flexibility (ASTM C 836): Flexible to -23 degrees C.
			12.	Liquid Water Absorption: Less than 0.5% by weight.
			13.	Resistance to Degradation: Excellent.
			14.	Bacterial Attack: No degradation.
			15.	Algal Attack: No degradation.
			16.	Fungal Attack: No degradation.
			17.	Resistance to Chemical Attack: Very resistant to acids, salts.
			18.	Re-Emulsification: None.
			19.	VOC Free.
	** NOTE TO SPECIFIER ** HAPS Free (other brands contain up to 30% Hazardous leachable chemicals, which can make their way into soil and groundwater around buildings; (other brands are not a good idea for use around schools)
			20.	HAPS Free.
	2.3	FLUID APPLIED MEMBRANE AIR BARRIER (VAPOR PERMEABLE)
	** NOTE TO SPECIFIER ** Hohmann & Barnard's Textroflash™ Liquid VP is a vapor permeable air barrier. The "breathable" barrier allows proper drainage in various types of wall systems and promotes drying of the wall cavity in either direction. UV exposure up to 145 days (other brands average 75 days. If a delay on project occurs contractor does not need to reply Product; other brands may require re-application.
		A.	Product: Textroflash Liquid VP as manufactured by Hohmann & Barnard, Inc.
		B.	Material: Modified Emulsion Non-Fibered Coating shall be a latex modified asphalt emulsion, 100% asbestos-free, with polymers and additives to formulate a waterproof coating.
		C.	Certification: Evaluation Report ESR-1490, Reissued August 1, 2006, ICC Evaluation Service, Inc.
		D.	Performance:
			1.	Color: Black.
			2.	Air Permeance (ASTM E 2178): 0.00159 perm.
			3.	Water vapor Permeance (ASTM E 96): >5.5 perm.
			4.	Application Rate: 20 mils dry.
			5.	Solids (%) (ASTM C 1250): 64 +/- 3% minimum by weight.
			6.	Density: 8.1 Lbs/Gal +/- 4 (0.92 G/Cm2).
			7.	Application: Airless spray, brush or roller.
	** NOTE TO SPECIFIER ** Film cure within 10 minutes (other brands can require up to 48 hours). Can begin next phase of construction within 24 hours (other brands can require up to 3 weeks).
			8.	Cure Time: 4-24 hours.
			9.	Elongation: 1850% minimum.
			10.	Adhesion to Concrete: Excellent.
			11.	Low Temperature Flexibility (ASTM C 836): Flexible to -23 degrees F.
			12.	Liquid Water Absorption: Less than 0.5% by weight.
			13.	Resistance to Degradation: Excellent.
			14.	Bacterial Attack: No degradation.
			15.	Algal Attack: No degradation.
			16.	Fungal Attack: No degradation.
			17.	Resistance to Chemical Attack: Very resistant to acids, salts.
			18.	Re-Emulsification: None.
			19.	VOC Free.
	** NOTE TO SPECIFIER ** HAPS Free (other brands contain up to 30% Hazardous leachable chemicals, which can make their way into soil and groundwater around buildings; (other brands are not a good idea for use around schools)
			20.	HAPS Free.
	2.4	ACCESSORY MATERIALS
		A.	Materials recommended by air barrier manufacturer for intended use and compatible with air barrier membrane. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.
		B.	Flashing Materials:
			1.	Transition Membrane: 40 mil thick reinforced polyolefin laminated to a polypropylene layer with adhesive back and release paper.
				a.	Product: Hohmann and Barnard Transition membrane.
			2.	Base Flashing: 40 mil thick membrane formulated with Elvaloy Kee with pressure sensitive clear adhesive.
				a.	Product: Hohmann and Barnard Flex-Flash Flashing.
			3.	Drip Edge: Stainless steel.
				a.	Product: Hohmann and Barnard Model # DP Drip Plate.
			4.	Termination Bar: Stainless steel.
				a.	Product: Hohmann and Barnard Stainless Steel Termination Bar.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	3.2	PREPARATION
		A.	Clean surfaces thoroughly prior to installation.
		B.	The surface shall be structurally sound, clean and dry and free of dust, mud, loose mortar, sand, soil, frost or other loose materials. Additionally, there must be no fins, metal projections or any substance that will prevent bonding of the coating membrane to the surface. Voids in concrete, tie holes and honeycombed areas in the foundation wall shall be filled with non-shrinking grout or an asphalt based mastic. Where non-shrinking grout is used for filling voids, the grout shall be allowed to cure before the membrane is applied. Concrete and parged masonry surfaces shall be cured and dry prior to application of the liquid air barrier membrane.
	3.3	INSTALLATION
	** NOTE TO SPECIFIER ** Application rate is 40 dry mils (other brands can require up to 100 dry mils, which can require 3-4 coat applications. Very costly in terms of labor for contractors) TEXTROFLASH LIQUID is self priming and does not require the use of a primer. It has been tested compatible with all ABAA certified transition membranes and can be applied below and/or above these membranes. It is not recommended for application to polyethylene surfaces.
		A.	Fluid Applied Membrane Air And Vapor Barrier:
			1.	Apply by spray, roller or brush in one or two coats to an application of 60 mils wet, yield 40 mils dry. These applications rate equate to an application rate of 25 square feet per gallon. The coating will be dry to the touch within 10 minutes, but shall be allowed to cure for 4-24 hours after application.
			2.	Detail transitions and terminations per manufacturer's details using membrane flashing and metal fabrications as specified.
	** NOTE TO SPECIFIER ** Application rate is 20 dry mils (other brands can require up to 100 dry mils, which can require 3-4 coat applications. Very costly in terms of labor for contractors) TEXTROFLASH LIQUID VP is self priming and does not require the use of a primer. It has been tested compatible with all ABAA certified transition membranes and can be applied below and/or above these membranes. It is not recommended for application to polyethylene surfaces.
		B.	Fluid Applied Membrane Air Barrier (Vapor Permeable):
			1.	Apply by spray, roller or brush in one or two coats to an application of 40 mils wet, yield 20 mils dry. The coating will be dry to the touch within 10 minutes, but shall be allowed to cure for 4-24 hours after application.
			2.	Detail transitions and terminations per manufacturer's details using membrane flashing and metal fabrications as specified.
	3.4	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Clean while wet with soap and water. If the cured; remove with mineral spirits.
		C.	Touch-up, repair or replace damaged Work before proceeding with construction on or concealing work.
	END OF SECTION