HomeMy WebLinkAbout071900 water repellents.pdf Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
WATER REPELLENTS 071900 - 1
SECTION 071900 - WATER REPELLENTS
PART 1 - GENERAL
1.1 SUMMARY
A. Section includes penetrating water-repellent treatments for vertical exterior surfaces of concrete
unit masonry.
1.2 ACTION SUBMITTALS
A. Product Data: For each type of product indicated, documenting compatibility with masonry and
mortar materials.
1.3 INFORMATIONAL SUBMITTALS
A. Product certificates.
1.4 QUALITY ASSURANCE
A. Preinstallation Conference: Conduct conference at Project site.
PART 2 - PRODUCTS
2.1 PENETRATING WATER REPELLENTS
A. Silane/Siloxane-Blend, Penetrating Water Repellent: Clear, silane and siloxane blend with
400 g/L or less of VOCs.
1. Products: Subject to compliance with requirements, provide one of the following:
a. Degussa Corporation; Protectosil Aqua-Trete EM.
b. Fabrikem Manufacturing Ltd.; Fabrishield 900 Series.
c. Kryton International Inc., Kryton Group of Companies (The); Hydrostop WB.
d. LymTal International, Inc.; Iso-Flex 628.
e. PROSOCO, Inc.; Siloxane WB Concentrate.
f. Sika Corporation, Inc.; Sikagard 701W.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
WATER REPELLENTS 071900 - 2
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine substrates, areas, and conditions, with Applicator present, for compliance with
requirements and conditions affecting performance of the Work.
1. Verify that surfaces are clean and dry according to water-repellent manufacturer's
requirements. Check moisture content in representative locations by method
recommended by manufacturer.
2. Inspect for previously applied treatments that may inhibit penetration or performance of
water repellents.
3. Verify that there is no efflorescence or other removable residues that would be trapped
beneath the application of water repellent.
4. Verify that required repairs are complete, cured, and dry before applying water repellent.
B. Test pH level according to water-repellent manufacturer's written instructions to ensure
chemical bond to silica-containing or siliceous minerals.
3.2 PREPARATION
A. Protect people, vehicles, property, plants, windows and all surfaces not set for treatment from
product, splash, residue, fumes and wind drift. Use polyethylene or other tested material for
protecting non masonry surfaces. Protect/divert pedestrian and auto traffic.
B. Ensure all windows, exterior intakes and air conditioning vents are covered and air handling
equipment is shut down during application and until vapors have dissipated.
C. Cleaning: Before application of water repellent, clean substrate of substances that could impair
penetration or performance of product according to water-repellent manufacturer's written
instructions.
D. Coordination with Mortar Joints: Do not apply water repellent until pointing mortar for joints
adjacent to surfaces receiving water-repellent treatment has been installed and cured.
E. Coordination with Sealant Joints: Do not apply water repellent until sealants for joints adjacent
to surfaces receiving water-repellent treatment have been installed and cured.
3.3 APPLICATION
A. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect the
substrate before application of water repellent and to instruct Applicator on the product and
application method to be used.
B. Apply a heavy-saturation coating of water repellent, on surfaces indicated for treatment, using
low-pressure spray to the point of saturation. Remove excess material; do not allow material to
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
WATER REPELLENTS 071900 - 3
puddle beyond saturation. Comply with manufacturer's written instructions for application
procedure unless otherwise indicated.
C. Apply a second saturation coating, repeating first application. Comply with manufacturer's
written instructions for limitations on drying time between coats and after rainstorm wetting of
surfaces between coats. Consult manufacturer's technical representative if written instructions
are not applicable to Project conditions.
3.4 CLEANING
A. Immediately clean water repellent from adjoining surfaces and surfaces soiled or damaged by
water-repellent application as work progresses. Correct damage to work of other trades caused
by water-repellent application.
B. Comply with manufacturer's written cleaning instructions.
END OF SECTION 071900