SECTION 07 27 26
LIQUID APPLIED VAPOR PERMEABLE AIR/MOISTURE BARRIER
SPECIFIER NOTE: This Short Form specification is intended for use by the design professional
to assist in developing project specifications for the application of a Liquid Applied Vapor
Permeable Air/Moisture Barrier – BEP Blue Barrier Liquid Wrap or BEP Blue Barrier Flash ‘N
Wrap RG to vertical above grade concrete, masonry, and sheathed wall construction. BEP Blue
Barrier Liquid Wrap and BEP Blue Barrier Flash ‘N Wrap RG are designed for use beneath
claddings such as brick veneer with a cavity, vinyl, wood, and fiber cement siding. They can
also be used behind Portland cement stucco with code compliant metal lathe and a slip-sheet,
typically code approved building paper or felt. BEP Blue Barrier Liquid Flashing or BEP Blue
Barrier Flash ‘N Wrap RG and BEP Blue Barrier Joint Filler are to be used in conjunction with
BEP Blue Barrier Liquid Wrap per the application guides.
It is the responsibility of the Specifier to determine if a product is suitable for its intended use
including but not limited to all decisions pertaining to design, detail, structural capability,
attachment details, shop drawings and the like. Dominus Innovations has prepared guidelines in
the form of specifications, typical application details, and product bulletins to facilitate the design
process only. Dominus Innovations is not liable for any errors or omissions in design, detail,
structural capability, attachment details, shop drawings or the like, whether based upon the
information provided by Dominus Innovations or otherwise, or for any changes which the
purchasers, specifiers, designers or their appointed representatives may make to the
manufacturers comments.
Please note that any joints or gaps between adjoining components as well as mechanical
penetrations, etc. are of primary importance to maintain continuity of an air/moisture barrier
system and must be considered by the design professional in the overall wall assembly design.
Stucco claddings require the use of a slip-sheet installed.
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SECTION 07 27 26
LIQUID APPLIED VAPOR PERMEABLE AIR/MOISTURE BARRIER
PART 1 - GENERAL
RELATED DOCUMENTS
NOTE: Delete or revise coordination of project general conditions. General
Conditions vary from project to project and method of construction.
A.
Drawings and general provisions of the Contract, including General and
Supplementary Conditions and Division 01 Specification Sections, apply to this
Section.
SUMMARY
A.
This Section includes the following:
NOTE: Add or Delete paragraphs or sub-paragraphs list below to suit Project.
1.
B.
Liquid Applied Vapor Permeable Air/Moisture Barrier System: Vapor
permeable, liquid applied system located in non-accessible part of assembly.
Related Sections include the following:
NOTE: Delete or revise coordination of related bridge materials related to this
section or that flashing section stands alone.
1.
Division 07 Section “Liquid Applied Window and Door Flashing” for scope of
work that requires this section.
2.
Division 07 Section “Liquid Applied Vapor Permeable Air/Moisture Bridge” for
scope of work that requires this section.
DEFINITIONS
A.
Liquid Applied Vapor Permeable Air/Moisture Barrier Assembly: Collection of liquid
applied air/moisture barrier materials and auxiliary materials applied to an opaque
wall, including joints and junctions to abutting construction, to control air and
moisture movement through building assemble.
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SUBMITTALS
A.
Product Data: Include manufacturer's written application guide instructions, technical
data sheets and tested physical and performance properties of air/ moisture barrier.
QUALITY ASSURANCE
A.
Applicator Qualifications: A firm experienced in applying air/moisture barrier
materials similar in material, design, and extent to those indicated for this Project.
NOTE: Add Mock-up paragraph below if additional items, location, size, components
required.
B.
Mockups: Before beginning installation of air/moisture barrier, build mockups of
exterior wall assembly.
DELIVERY, STORAGE, AND HANDLING
NOTE: Add more specific items to paragraph below location, covering off-site
protection.
A.
Storage: Deliver and store materials in original undamaged packages in clean, dry,
protected location within temperature range required by air/moisture barrier
manufacturer’s Technical Data Sheets.
PROJECT CONDITIONS
NOTE: Add or Delete paragraph below for other climate conditions and storage
availability or off-site storage.
A.
Environmental Limitations: Apply liquid applied vapor permeable air/moisture barrier
within the range of ambient and substrate temperatures recommended by
air/moisture barrier manufacturer’s Installation and Application Guide.
WARRANTY
A.
Warranty: Provide manufacturers material warranty.
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PART 2 - PRODUCTS
LIQUID APPLIED VAPOR PERMEABLE AIR/MOISTURE BARRIER
NOTE: Add more specific data requirements that reinforce the performance of the
air/moisture barrier including ASTM and ABAA requirements.
A.
Liquid Applied Vapor Permeable Air/Moisture Barrier: Components and accessories
obtained as a single source from liquid applied vapor permeable air/moisture barrier
manufacturer to ensure total assembly compatibility and integrity.
B.
Material: Single-stage application, seamless, proprietary modified (STPE) Silyl
Terminated polyether technology, cold applied liquid, vapor permeable, mold
resistant, air/moisture membrane.
C.
Manufacturer:
Dominus Innovations LLC
2202 North West Shore Boulevard Suite 200
Tampa, FL 33607
Telephone Number 1 813 279 1902
Website: BEPproducts.com
AUXILIARY MATERIALS
NOTE: Add more specific data requirements that reinforce auxiliary product
performance of the air/moisture barrier and add/delete auxiliary requirements
required for the project.
A.
General: Auxiliary materials recommended by liquid applied vapor permeable
air/moisture barrier manufacturer for intended use and compatible with liquid applied
vapor permeable air/moisture barrier membrane.
B.
Primer: No primer required.
C.
Liquid Flashing: “BEP Blue Barrier Liquid Flashing 2100” or “BEP Flash ‘N Wrap RG
2400”
D.
Substrate Patching: Closed cell backer rod and/or closed cell expanding foam as
recommended in manufacturer’s Installation and Application Guide.
E.
Joint Filler: “BEP Blue Barrier Joint Filler 2200”.
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PART 3 - EXECUTION
EXAMINATION
A.
Examination: Examine substrates, areas, and conditions, with installer present, for
compliance with manufacturer’s Installation and Application Guide requirements and
other conditions affecting performance.
NOTE: Add more specific requirements that will benefit the preparation required for
the project.
SURFACE PREPARATION
A.
Preparation: Clean and prepare substrate according to manufacturer's Installation
and Application Guide.
JOINT TREATMENT
A.
Treatment: Prepare, rout, and fill joints and cracks in substrate according to
ASTM C 1193 and air/moisture barrier manufacturer's Installation and Application
Guide.
FLASHING INSTALLATION
A.
Installation: Flash heads, sills and bridge terminations at perimeter frame surfaces of
windows, curtain walls, storefronts, and doors, and miscellaneous penetrations with
liquid flashing or flash ‘n wrap rg in conjunction with joint filler material as
recommended by manufacturer for a complete watertight construction.
B.
Preparation for Additional Coats: Wipe down air/moisture barrier with approved
solvent and bring back to tacky per manufacturer’s Installation and Application
Guide.
LIQUID APPLIED VAPOR PERMEABLE AIR/MOISTURE BARRIER INSTALLATION
NOTE: Add more specific requirements for special installation requirements including
procedure for wet, applicator requirements, overlapping, and inspection.
A.
Application: Apply liquid applied vapor permeable air/moisture barrier within
manufacturer's recommended application temperature ranges. Substrate may be
damp to the touch in accordance with manufacturer’s Installation and Application
Guide.
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B.
Installation: Apply continuous unbroken liquid applied vapor permeable air/moisture
barrier with approved spray or roller equipment to substrates according to the
following minimum thickness. Apply membrane in full contact around protrusions:
C.
Liquid Applied Vapor Permeable Air/Moisture Barrier: 15-20 mil wet film thickness
using crosshatch spray pattern when spraying as recommended by manufacturer or
roll to an even coat of 15-20 mil wet film thickness as recommended by
manufacturer.
CLEANING AND PROTECTION
A.
Protection: Protect liquid applied vapor permeable air/moisture barrier system from
damage during remainder of construction period.
B.
Cleaning: Clean spills, stains, and soiling from construction that would be exposed in
the completed work using cleaning agents and procedures recommended by
manufacturer of affected construction.
END OF SECTION 07 26 26
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