ST. VINCENTCOLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
SECTION 07 92 00 JOINT SEALANTS
PART 1 GENERAL
1.01RELATED DOCUMENTS
A.Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.
1.02SECTION SUMMARY
A.Section includes:
1.Caulking/joint sealant where noted on drawings, and where directed by Architect.
2.Caulk exterior and interior perimeter of all exterior door frames; new and existing.
3.Caulk exterior and interior perimeter of all window frames new and existing.
4.Caulk partitions for sound attenuation control; acoustical sealant.
5.Caulk perimeter of elevator entrance frames.
6.Caulking control and expansion joints in masonry.
7.Caulking control and expansion joints, isolation joints in concrete sidewalks.
8.Sealant pointing of copings and other masonry areas noted on drawings and specified.
9.Joint Sealant for miscellaneous glass glazing, including curved glass canopy at entrance.
10.Joint filler material.
11.Joints between different materials.
12.Tile control and expansion joints.
13.Joints between plumbing fixtures and adjoining walls, floors and counters.
14.Multiple colors to be used.
1.03RELATED SECTIONS
A.Related Sections include:
1.Section 01 81 13 - LEED Requirements.
2.Section 03 30 00 Concrete; Exterior Expansion Joints.
3.Section 04 20 00 Unit Masonry; Expansion Joints.
4.Section 04 40 00 Stonework; Sealant Joints.
5.Section 07 84 00 Firestopping; Sealant.
6.Section 07 95 00 – Expansion Control
1.04SUBMITTALS
A.Product Data: Submit manufacturer's product specifications, handling/installation/curing instructions, and performance tested data sheets for each product.
B.Samples: Submit color samples for each type of caulking/sealant for Architect's selection; including multiple color selections.
C.SWRI validation certificate: for each estomeric sealant specified to be validated by SWRI's sealant validation program.
D.LEED Documentation: Provide certification documentation that joint sealants meet LEED requirements as set forth in Section 01 81 13.
1.05QUALITY ASSURANCE
A.Elastomeric Joint Sealants:
1.Comply with ASTM C 920.
2.Additional movement capability: ASTM C 719.
3.Non-staining characteristics: ASTM C 1247.
4.Food contact suitability: 21 CFR 177.2600.
B.Latex Joint Sealants:
1.Comply with ASTM C 834.
C.Installation of caulking shall be performed only by workmen thoroughly skilled and specially trained in the techniques of caulking and who are completely familiar with the published recommendations of the manufacturer of the caulking material being used.
D.Rejection of Installed Caulking: Indication of lack of skill on the part of the caulking Installers shall be sufficient grounds for the Architect to reject installed caulking and to require its immediate removal and complete recaulking at no additional cost to the Owner.
E.Provide compliance with SWRI's sealant validation program by reference to ASTM C920.
- Sealants to meet Bay Area Quality Management District Regulations, Rule 51.
- Sealants used on interior spaces to have low VOC content to meet LEED requirements. Refer to section 01 81 13.
H.Adhesives and sealants must be less than the current VOC content limits of South Coast Air Quality Management District (SCAQMD) Rule #1168.
I.Mock-ups to be provided in various locations with different sealant colors,which are to be reviewed and approved by the Architect.
1.06PROJECT/SITE CONDITIONS
A.Weather Conditions: Do not proceed with installation of liquid sealants under unfavorable weather conditions. Minimum 40 degrees F.(4.4 deg.C) required for installation.
1.07WARRANTY
A.Installer's Warranty: Written warranty, signed by Installer agreeing to repair or replace elastomeric joint sealants that fail or do not comply with performance and other requirements specified in this Section within the specified warranty period.
1.Warranty period: Two years from date of substantial completion.
B.Manufacturer's Warranty: Written warranty, signed by Manufacturer agreeing to furnish elastomeric joint sealants to repair or replace those that fail or do not comply with performance and other requirements specified in this Section within the specified warranty period.
1.Warranty period: Twenty years from date of substantial completion.
PART 2 PRODUCTS
2.01MATERIALS
A. Joint Sealants: for all exterior joints and other joints subject to expansion, contraction and other types of movement, including expansion and control joints in walls and partitions and wherever similar or dissimilar materials abut one another so as to form an open joint (sealable), and as indicated on the drawings.
1.Exterior: Single-component polyurethane conforming to ASTM C 920, Type S, Class 25, Grade NS; similar to:
a.Tremco "Tremflex 834", 1-800-852-8173.
b.Pecora Corp, "864, 890 and 895", 1-800-523-6688.
c.Geocel Corporation "Quick Shield", 1-800-348-7615.
B.Joint Sealants: for interior, non-moving joints in vertical surfaces, including perimeters of frames or openings in walls and partitions, elsewhere as required to provide finished appearance, and as indicated on the drawings.
1.One-part, non-sag, acrylic latex water-based sealant conforming to ASTM C 834; VOC content: maximum 42 grams/liter; similar to:
a.OSI Sealants, 1-800-624-7767.
b.Pecora AC-20+ silicone.
C.Expansion Joint Sealant for Masonry:
1. Multi-component polyurethane; low VOC content meeting LEED requirements, similar to:
a.Tremco "Dymeric 511".
b.Pecora "Dynaflex".
c.Sika "Sikaflex-2cNA".
2. Custom color as selected by Architects.
D.Sealant for Stonework:
1.Multi-component polyurethane joint sealant; low VOC content meeting LEED requirements, similar to:
a.Tremco "Dymeric 511".
b.Pecora "Dynaflex".
c.Sika "Sikaflex-2cNA".
E.Acoustical joint Sealant: Shall be permanently resilient, non-hardening, non-bleeding caulking material.
1.In exposed products shall be skinning type, low VOC content meeting LEED requirements, similar to:
a.Pecora "AC-20".
b.Dow "Fire Stop".
2.In concealed locations shall be non-skinning type, low VOC content meeting LEED requirements, similar to:
a.Tremco "Acoustical Sealant".
b.Pecora "BA-98".
c.Ohio Sealants, Inc. "Pro-series SC-170".
3.Comply with ASTM C 834 and ASTM E 90.
F.Sanitary Sealant: provide in toilet rooms, kitchen and janitor closets.
1.One-part non-sag mildew-resistant silicone sealant, formulated with fungicide, low VOC content meeting LEED requirements, similar to:
a.Dow Corning "786"
b.General Electric Co. "SCS 1702 Sanitary"
c.Pecora Corp.,"863 #345 White".
d.Tremco "Proglaze White".
G.Miscellaneous Glass Glazing: onepart silicone elastomeric sealant.
1.Glass butt joints; glass monumental stair in Atrium – Alternate and curved glass canopy over entrance.
a.Tremco "Spectrem 2”
b.Dow Corning #799
c.GE Silicones, Ultraglaze SSG4000
H.Colors: Colors as selected by Architect from full range of available colors.
2.02JOINT SEALER ACCESSORIES
A.Joint Filler Materials: Closedcell polyethylene foam rod 2550% greater than width of joint, comply with ASTM C 1330.
B.Primer: Where required, shall be used as recommended by manufacturer of sealant.
C.Cleaners: Solvents and cleaning agents and other accessory material shall be as recommended by sealant manufacturer.
D.Bond Breaker Tape: Polyethylene tape or other plastic tape recommended by manufacturer for preventing sealant from adhering to joint filler materials or joint surfaces at back of joint where such adhesion would result in sealant failure.
E.Materials shall be delivered to the job in sealed containers with manufacturer's original labels attached. Materials shall be used according to manufacturer's printed instructions. Color of all sealants shall be as selected by the Architect from manufacturer's full range of available colors.
PART 3 EXECUTION
3.01EXAMINATION
A.Joint sealant installer shall examine joints indicated to receive joint sealants for compliance with requirements for joint configuration, installation tolerances, and other conditions affecting joint sealant performance. Do not proceed with installation of joint sealants until unsatisfactory conditions have been corrected.
3.02PREPARATION
A.Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to comply with recommendations of joint sealant manufacturer and the following requirements:
1.Remove all foreign material from joint substrates that could interfere with adhesion of joint sealant, including dust, paints (except for permanent, protective coatings tested and approved for sealant adhesion and compatibility by sealant manufacturer), old joint sealants, oil grease, waterproofing, water repellents, water surface dirt, and frost.
2.Clean concrete, masonry, unglazed surfaces of ceramic tile, and similar porous joint substrate surfaces by brushing, grinding, blast cleaning, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing optimum bond with joint sealants. Remove loose particles remaining from above cleaning operations by vacuuming or blowing out joints with oil-free compressed air.
3.Remove laitance and form release agents from concrete.
4.Clean metal, glass, porcelain enamel, glazed surfaces of ceramic tile, and other nonporous surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants.
B.Joint Priming: Prime joint substrates where indicated or where recommended by joint sealant manufacturer based on preconstruction joint sealant-substrate tests or prior experience. Apply primer to comply with joint sealant manufacturer's recommendations. Confine primers to areas of joint sealant bond; do not allow spillage or migration onto adjoining surfaces.
3.03INSTALLATION OF JOINT SEALANTS
A.Comply with joint sealant manufacturer's printed installation instructions applicable to products and applications indicated, except where more stringent requirements apply.
B.Sealant Installation Standard: Comply with recommendations of ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated.
C.Acoustical Sealant Application Standard: Comply with recommendations of ASTM C919 for use of joint sealants in acoustical applications as applicable to materials, applications, and conditions indicated.
D.Installation of Sealant Backings: Install sealant backings to comply with the following requirements.
1.Install joint fillers of type indicated to provide support of sealants during application and at position required to produce the cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability.
2.Do not leave gaps between ends of sealant backings, do not twist, stretch puncture or tear sealant backings.
3.Remove absorbent sealant backings that have become wet before sealant application and replace them with dry materials.
E.Installation of Sealants: Install sealants by proven techniques that result in sealants directly contacting and fully wetting joint substrates, completely filling recesses provided for each joint configuration, and providing uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability. Install sealants at the same time sealant backings are installed.
F.Tooling of Nonsag Sealants: Immediately after sealant application and prior to time skinning or curing begins, tool sealants to form smooth, uniform beads of configuration indicated, to eliminate air pockets, and to ensure contact and adhesion of sealant with sides of joint. Remove excess sealants from surfaces adjacent to joint. Do not use tooling agents that discolor sealants or adjacent surfaces or are not approved by sealant manufacturer.
3.04CLEANING
A.Clean off excess sealants and smears adjacent to joints as work progresses by methods and cleaning materials approved by manufacturers of joint sealants and of products in which joints occur.
3.05WASTE MANAGEMENT
A.Separate waste in accordance with the Waste Management Plan.
B.Close and seal tightly all partly used sealant containers and store protected in well-ventilated, fire-safe area at moderate temperatures.
C.Place used sealant tubes and containers in areas designated for hazardous materials.
END OF SECTION
JOINT SEALANTS
07 92 00-1(45307035)