4456
(800)
676-7346
(316)
522-9300
SECTION 07 19 00 [71900]
WATER REPELLENTS
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Specifier Notes: This section covers the application of water repellents to protect above-grade, vertical and horizontal brick, block, concrete, stucco, and stone surfaces. The products specified in this section are not recommended for below-grade applications. Before editing this section, consult Professional Products of Kansas, Inc. to obtain complete product information on the water repellents required for this project.
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PART 1 GENERAL
1.01 SECTION INCLUDES
A. This specification covers preparation, materials, services, and equipment required for the application of PROFESSIONAL® Water Sealant product for projects involving either old or new construction. Any substantial deviations shall be referred to the manufacturer or authorized representative.
1.02 RELATED SECTIONS
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Specifier Notes: Edit the following list as required for the project.
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A. Section 03-3000 [03300] –
Cast-In-Place Concrete: Concrete walls to receive water repellent.
B. Section 03-4000 [03400] –
Precast Concrete: Concrete walls to receive water repellent.
C. Section 04-2100 [04210] –
Clay Unit Masonry Units: Brick walls to receive water repellent
D. Section 04-2200 [04220] –
Concrete Masonry Units: Concrete Block walls to receive water repellent.
E. Section 04-4300 [04400] –
Stone Masonry: Stone walls to receive water repellent.
F. Section 07-4623 [07462] –
Wood Siding: Wood faced walls to receive water repellent.
G. Section 09-2400 [09220] –
Portland Cement Plaster: Cement plaster wall finish to receive water repellent.
1.03 SUBMITTALS
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Specifier Notes: Provide reference to appropriate Division 1 section for administrative and procedural requirements for submittals.
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A. Submit in accordance with
Section 01330 – Submittals.
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Specifier
Notes: List relevant data to be submitted by the Contractor
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B. Product Data: Submit
manufacturer’s product data sheet for the specified clear water repellent
material. Submit description for protection of surrounding areas and
non-masonry surfaces, surface preparation, application, and final cleaning.
C. Applicator Qualifications:
Submit qualifications of applicator; stating applicator has a minimum of three
(3) years experience using the specified or a similar product. Provide a list
of several most recently completed projects, including project name and
location, names of owner and architect, and description of products used,
substrates, and method of application.
D. Environmental Regulations:
Submit applicable environmental regulations.
E. VOC Certification: Submit certification that water repellents furnished comply with regulations controlling content of volatile organic compounds (VOC).
1.04 QUALITY ASSURANCE
A. Applicator Qualifications:
1. Experience in the
application of the specified or similar products.
2. Employs persons trained for
the application of the specified or similar products.
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Specifier Notes: Describe requirements for a meeting to coordinate the application of the water repellents and to sequence related work.
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B. Pre-Application Meeting:
Convene a pre-application meeting [ ] weeks before the start of application of
water repellents. Require attendance of parties directly affecting work of this
section, including the Contractor, Architect, Applicator, and Professional
Products of Kansas representative. Review environmental regulations, test panel
procedures, protection of surrounding areas and non-masonry surfaces, surface
preparation, application, field quality control, final cleaning, and
coordination with other work.
1.05 ENVIRONMENTAL REGULATIONS
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Specifier
Notes: Consider applicable federal, state, and local environmental regulations.
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A. Comply with applicable
federal, state, and local environmental regulations.
1.06 TEST PANELS
A.
Before full-scale application, apply water repellent to test panels constructed
of substrate materials to be used on actual project to determine coverage
rates, compatibility, effectiveness, and aesthetics.
B. Apply water repellents to
test panels in accordance with manufacturer’s written instructions. Allow 24
hours or until test panels are thoroughly cured before evaluating final
appearance and results. Do not begin full-scale application until test panels
are inspected and approved by the Architect.
C. Allow 7 days of cure time
prior to testing using RILEM or MAT methods.
1.07 DELIVERY, STORAGE, AND HANDLING
A.
Delivery: Deliver materials to the job site in original, tightly sealed,
unopened containers, with labels clearly identifying product name and
manufacturer. Verify that the product matches that of the original sample
applied on the test panel.
B.
Storage and Handling: Store containers upright in a cool, dry place. Keep away
from sparks and open flame. Store and handle materials in accordance with
manufacturer’s written instructions.
1.08 PROJECT CONDITIONS
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Specifier Notes: Establish environmental limitations or criteria. Such conditions might include air and surface temperatures, weather, and wind required for proper application. When appropriate, describe condition of existing structures to receive water repellents.
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A. Surface Preparation:
Contractor or Applicator shall be responsible for providing a clean, dry
substrate free from oil, dirt, grease, efflorescence, form release agents or
any other coating, which may inhibit penetration and adhesion of water
repellent. This requirement applies to
new construction, renovation or remedial projects. Substrate must be completely
dry prior to applying product.
B.
Environmental Requirements:
1. Temperature: Product may be applied at any temperature providing that there is no frozen moisture present in the substrate. When applied at temperatures below 40 degrees Fahrenheit the product may cure at a slower rate. Optimal temperature range for application is between 40° F (5° C) and 95° F (35° C).
2. Do not apply material if the substrate is wet or
contains frozen moisture. Allow substrate to dry for a minimum of 48 hours
after rain or 72 hours after power washing.
3. Do not apply material during inclement weather or if precipitation is expected within 12 hours.
4.
Do not use spray methods of application under windy conditions.
C.
Protection:
1.
Special precautions should be taken to avoid fumes from entering the building
being treated. Ventilation systems and fresh air intakes should be turned off
and covered.
2.
Protect shrubs, metal, glass, vehicles, and other building hardware from
overspray.
1.09 WARRANTY
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Specifier Notes: The manufacturer’s warranty is a
materials warranty and does not include labor. If a labor warranty is desired,
the specification should require the contractor to provide it.
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A.
5 Year Horizontal Warranty & 10 Year Vertical
Warranty:
1.
Prior to commencement of application of product, submit Sections 1 and 2 of
manufacturer’s Warranty Application Form to manufacturer for pre-approval of
warranty.
2.
After completion of the project, submit Section 3 to manufacturer for final
approval. Manufacturer will provide written warranty to building owner upon
approval.
2.01 MANUFACTURER
2.02 WATER REPELLENTS
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Specifier Notes: Refer to Professional Products of
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A.
Professional® Water Sealant, Regular Strength: Penetrating silicone
rubber water repellent for use on vertical or horizontal concrete, dense brick,
and granite. Penetrates without altering the natural appearance of the
substrate. Will not form a surface film
or gloss. Inorganic, it is not affected
by UV rays, salts, acid rain, etc. Breathable, it allows moisture vapor to
escape while preventing liquid penetration. Flexible, it bridges hairline
cracks and allows for building movement.
Inhibits mold and mildew.
1. Form: Liquid
2. Color: Clear
3. Active Substance: RTV
Silicone Rubber
4. Percent Active Material: 5%
5. Flash Point: 105°
B. Professional® Water Sealant, Extra Strength: Penetrating silicone rubber water repellent for use on vertical porous concrete, porous brick, sandstone, limestone, wood, and stucco. Penetrates without altering the natural appearance of the substrate (In some cases, the substrate may be slightly darkened or enhanced). Will not form a surface film or gloss. Inorganic, it is not affected by UV rays, salts, acid rain, etc. Breathable, it allows moisture vapor to escape while preventing liquid penetration. Flexible, it bridges hairline cracks and allows for building movement. Inhibits mold and mildew.
1. Form: Liquid
2. Color: Clear
3. Active Substance: RTV
Silicone Rubber
4. Percent Active Material: 8%
5. Flash Point: 105°
C. Professional® Water Sealant, Super Strength: Penetrating silicone rubber water repellent for use on vertical split face, smooth, fluted and lightweight block. Penetrates without altering the natural appearance of the substrate (In some cases, the substrate may be slightly darkened or enhanced). Will not form a surface film or gloss. Inorganic, it is not affected by UV rays, salts, acid rain, etc. Breathable, it allows moisture vapor to escape while preventing liquid penetration. Flexible, it bridges hairline cracks and allows for building movement. Inhibits mold and mildew.
1. Form: Liquid
2. Color: Clear
3. Active Substance: RTV
Silicone Rubber
4. Percent Active Material: 15%
5. Flash Point: 105°
D. The water sealant product listed above is selected as a standard of quality. Application procedure and coverage rates must be in conformance with results of testing samples submitted, recommendation of application rates suggested, approved manufacturers standards and as a minimum, that specified herein.
1. Proposed alternate products must be equal in terms of chemical composition and performance standards. Products must be a penetrating, permanent waterproofing treatment using a silicone rubber base and not contain any paraffin waxes, urethanes or polysiloxanes. Silane and siloxane based products will not be considered due to of their lack of elastomeric properties.
PART 3 EXECUTION
3.01 EXAMINATION
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Specifier Notes: State actions required to determine that conditions are acceptable to receive the specified water repellents.
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A. Verify the following:
1. The required joint sealants have been installed.
2. New masonry and mortar has
cured a minimum of 28 days.
3. Surface to be treated is
clean, dry, and contains no frozen moisture.
4. Environmental conditions are
appropriate for application.
3.02 PROTECTION
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Specifier Notes: State requirements for protecting the surrounding areas and all non-masonry surfaces during the water repellent work.
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A. Protect surrounding areas, glass, landscaping, building occupants, pedestrians, vehicles, and non-masonry surfaces during the work from contact with water repellents.
B.
Special precautions should be taken to prohibit fumes from entering the
building being treated. Ventilation systems and fresh air intakes should be
turned off and covered.
3.03 SURFACE PREPARATION
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Specifier Notes: Describe surface preparation of substrates required before application of water repellents.
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A. Clean all dirt, oil, grease, mold, mildew, efflorescence,
form release agents, curing compounds, or any other coating or material from surfaces that
interfere with penetration, performance, adhesion, or aesthetics of water
repellents. Rinse thoroughly, to remove cleaner residues. Allow surfaces to dry
completely before application of water repellents. Extremely dense concrete
surfaces should be prepared using soda, sand, or shot blasting to facilitate
penetration.
B. Repair, patch, and fill all cracks, voids,
defects, and damaged areas in surface as approved by the Architect. Allow
repair materials to cure completely before application of water repellents.
C. Seal all open joints.
D. Allow new masonry and concrete construction and
repointed surfaces to cure for a minimum of 28 days before application of water
repellents.
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Specifier Notes: Refer to Article 1.06 TEST PANELS and to Professional Products of Kansas product data sheets to determine appropriate procedures for the water repellents and substrates specified in PART 2 PRODUCTS.
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A. Apply water repellents to substrate in accordance
with manufacturer’s written instructions, environmental regulations, and
application procedures determined from the test panel results and as approved
by the Architect.
B. Apply to clean, dry, cured, and properly prepared
surfaces approved by Architect.
C. Apply material as shipped by the manufacturer. Do
not dilute.
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Specifier Notes: Edit the following list as required for the project
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D. Do not apply to below-grade surfaces.
E. Do not apply to painted surfaces.
F. Do not apply to compensate for structural or
material defects in substrates.
G. Do not apply to substrates such as asphalt or
polystyrene, which may be affected by the solvent carrier.
H. Apply material using a high-volume, low pressure,
pump-up sprayer (between 40-50 psi), with a fan tip and solvent resistant
fittings. Roller, or brush of natural bristle or foam may be used in areas
where spray application is not appropriate. Do not use Airless spray equipment.
1. Vertical Applications: Apply
in a flood coat, from top to bottom, being sure to obtain a 4 to 6 inch rundown
of product from the point where the spray makes contact with the surface. Work
all the way down the building covering the rundown as you go. Avoid excessive
overlapping.
a. Some substrates may require
back rolling after product is applied to smooth out any rundown lines.
b. Brush any excess product that
may accumulate on ledges and other areas that may hold excess material.
2. Horizontal Applications: If surface pooling or
puddling appears, back-roll, brush, wipe up, or broom away excess material.
Complete penetration must occur. Avoid excessive overlapping. Material curing
on surface may cause whiting or slickness.
3.05 FIELD QUALITY CONTROL
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Specifier Notes: Define the inspection during and at completion of water repellent work.
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A. Inspection: Inspect the water repellent work with
the Contractor, Architect, applicator, and Professional Products of Kansas
representative, and compare with test panel results approved by the Architect.
Determine if the substrates are suitably protected by the water repellents.
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Specifier Notes: Describe specific requirements if manufacturer is to provide field quality control with on-site personnel for instruction or supervision of application of water repellents
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B. Manufacturer’s Field Services: Provide the
services of a manufacturer’s authorized field representative to verify
specified products are used; protection, surface preparation, and application
of water repellents are in accordance with the manufacturer’s written
instructions; and the test panel is approved by the Architect.
3.06 FINAL CLEANING
A. Upon completion of all
work covered in a specification, the Contractor shall remove all equipment,
material and debris, leaving the area in an undamaged and acceptable
condition. Dispose of water repellent
containers according to state and local environmental regulations.