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SECTION 071000 – BITUMINOUS DAMPPROOFING – ALTERNATE
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 1 Specification Sections, apply to this Section.
1.2
SUMMARY
A. This Section includes the following:
1. Bituminous Dampproofing required only where Masonry Veneer (Brick) is specified.
2. Cold-applied, emulsified-asphalt dampproofing; asbestos free.
3. Dampproofing of exterior masonry walls.
1.3
SUBMITTALS
A. Product data for each type of product specified, including data substantiating that
materials comply with requirements for each dampproofing material specified.
Include:
1. Recommended method of application.
2. Recommended primer.
3. Number of coats.
4. Coverage or thickness.
5. Recommended protection course.
B. Product data confirming compatibility with flashing.
1.4
PROJECT CONDITIONS
A. Weather Limitations: Proceed with dampproofing only when existing and forecasted
weather conditions will permit work to be performed according to manufacturer’s
recommendations and warranty requirements.
PART 2 – PRODUCTS
2.1
BITUMINOUS DAMPPROOFING
A. Cold-Applied, Fibrated Asphalt Dampproofing: Asphalt and emulsion compound with
mineral stabilizers mixed to a smooth, uniform, semi-mastic consistency to provide a
firm, moisture-resistant, elastic coating complying with ASTM 1227, Type II, Class 1;
ASTM D1187, Type I and II, equal to Karnak No. 220AF or approved equal.
B. Primer: Per requirements of dampproofing manufacturer.
C. Option: Asphalt and solvent based; ASTM D 449, Type I; equal to Karnak No. 83AF,
fibrated. Primer: ASTM D 41.
PART 3 – EXECUTION
3.1
PREPARATION
A. Clean substrate of projections and substances detrimental to work; comply with
recommendations of prime materials manufacturer.
B. Fill voids, seal joints, and install corner protection stripping, as recommended by
prime materials manufacturer, with particular attention at construction joints, and
expansion joints.
C. Prime substrate as recommended by prime materials manufacturer.
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D. Protection of Other Work: Do not allow liquid and mastic compounds to enter and
clog drains and conductors. Prevent spillage and migration onto other surfaces of
work by masking or otherwise protecting adjoining work.
3.2
INSTALLATION
A. Comply with manufacturer’s recommendations except where more stringent
requirements are indicated and where Project conditions require extra precautions to
ensure satisfactory performance of work.
B. Application: Apply dampproofing to the exterior surface of inside wythe of
double-wythe, exterior masonry walls above grade, to prevent water-vapor
penetration through the wall.
C. Coverage: Brush or spray apply primer and one coat of dampproofing at a rate of
4 gal./100 sq. ft.
3.3
PROTECTION AND CLEANING
A. Protect exterior, below-grade dampproofing membrane from damage until backfill is
completed. Remove overspray and spilled materials from surfaces not intended to
receive dampproofing.
END OF SECTION 071000
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BITUMINOUS DAMPPROOFING – ALTERNATE
071000–2
SECTION 072100 – BUILDING INSULATION
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and other Division 1 Specification Sections, apply to this Section.
1.2
SECTION INCLUDES
A. Extruded polystyrene board insulation for installation within masonry cavity wall
– ALTERNATE; see Section 042250 MASONRY VENEER.
B. Insulation at spandrel panels.
C. Glass fiber blankets and batts for installation in metal stud framing.
1.3
SUBMITTALS
A. Product Data and fasteners for each type of insulation product specified.
1.4
DELIVERY, STORAGE, AND HANDLING
A. Protect insulation materials from physical damage and from deterioration by
moisture, soiling, and other sources. Store inside and in a dry location. Comply with
manufacturer’s written instructions for handling, storing, and protecting during
installation.
PART 2 – PRODUCTS
2.1
INSULATION MATERIALS
A. Alternate for Brick Veneer: Extruded-Polystyrene (EPS) Board Insulation (Masonry
Walls): ASTM C 578, Type X, 1.30 lbs./cu. ft., R=5.0 per inch, thickness = 1.5 inches.
1. Surface-Burning Characteristics: Maximum flame-spread and smoke-developed
indices of 75 and 450, respectively.
2. Products: Equal to Dow-Corning Styrofoam Cavitymate.
B. Unfaced Glass Fiber Blanket Insulation: Thermal insulation combining glass fibers
with thermosetting resins to comply with ASTM C 665. Type I (blankets without
membrane facing). Provide 3-1/2 inches thick, R-11 blankets for walls; 6-1/4 inches
thick R-19 for roof.
1. Surface-Burning Characteristics: Maximum flame-spread and smoke- developed
indices of 25 and 50, respectively.
2. Products: Equal to CertainTeed, Owens-Corning or Schuller.
2.2
FASTENERS AND SUPPORTS
A. Provide fasteners, adhesives and supplementary supports required to permanently
secure insulation in place. Provide type and spacing as recommended by insulation
manufacturer.
B. Anchor Pins, Washers, Caps and Clips: Equal to AGM Industries Inc., Buildex, or
Gemco.
C. Wire and Insulation Supports: Equal to Moore Products, L. D. Peters and Sons, or
Southeastern Wire.
D. Adhesives: Equal to Contech, Inc., H. B. Fuller, Macco Adhesives, 3M or Gemco.
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PART 3 – EXECUTION
3.1
INSTALLATION
A. Comply with insulation manufacturer’s written instructions applicable to products and
application indicated.
B. Extend insulation in thickness indicated to envelop entire area to be insulated. Cut
and fit tightly around obstructions and fill voids with insulation.
C. Glass-Fiber Blankets: Install blankets of size required to produce snug friction fit
between framing members. Install supplementary wire or strap supports for
horizontal installations unsupported by ceilings.
D. EPS Boards: Install 16 inch nominal width boards snugly between horizontal
reinforcement or wall ties. Provide supplementary adhesive support as required or
recommended by manufacturer. Press boards firmly against inside wythe of
masonry. All EPS boards shall be concealed within or covered by non-combustible
materials.
E. Spandrel Insulation at storefront (not a perimeter fire barrier). Do not attach anchors
or pins to glass.
3.2
PROTECTION
A. General: Protect installed insulation from damage due to harmful weather
exposures, physical abuse, and other causes. Inspect and replace damaged
insulation before concealment.
END OF SECTION 072100
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SECTION 073113 – ASPHALT SHINGLES
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and other Division 1 Specification Sections, apply to this Section.
1.2
SUMMARY
A. This section includes:
1. Asphalt roofing shingles.
2. Underlayment.
3. Self-adhering membrane (leak barrier).
4. Metal flashing associated with shingle roofing.
B. Roofing Work includes new building roofing and connection to existing asphalt
shingle roof; see drawings.
1.3
RELATED SECTIONS
A. Section 061000 ROUGH CARPENTRY: Framing, wood decking, and roof sheathing.
B. Section 076000 FLASHING AND SHEET METAL.
1.4
REFERENCES
A. ASTM A 653/A 653M – Standard Specification for Steel Sheet, Zinc Coated
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
B. ASTM B 209 – Standard Specification for Aluminum and Aluminum-Alloy Sheet and
Plate.
C. ASTM B 370 – Standard Specification for Copper Sheet and Strip for Building
Construction.
D. ASTM D 2218 – Impact Resistance of Prepared Roof Covering Materials.
E. ASTM D 3018 – Standard Specification for Class A Asphalt Shingles Surfaced with
Mineral Granules.
F. ASTM D 3161 – Standard Test Method for Wind-Resistance of Asphalt Shingles
(Fan–Induced Method).
G. ASTM D 3462 – Standard Specification for Asphalt Shingles Made From Glass Felt
and Surfaced with Mineral Granules.
H. ASTM D 4586 – Standard Specification for Asphalt Roof Cement, Asbestos-Free.
I. ASTM D 7158 – Standard Test Method for Wind–Resistance of Sealed Asphalt
Shingles (Uplift Force/Uplift Resistance Method).
J. UL 790 – Tests for Fire Resistance of Roof Covering Materials.
K. UL 997 – Wind Resistance of Prepared Roof Covering Materials.
L. Asphalt Roofing Manufacturers Association (ARMA).
M. National Roofing Contractors Association (NRCA).
1.5
SUBMITTALS
A. Submit each of the following as one submittal package. Missing items will designate
the submittal as incomplete.
1. Product data for each accessory; mark each item used in the project.
2. Large scale detail shop drawings of each condition; Architects’ details are not
shop drawings; CAD drawings are not available.
3. Location, size and type of all fasteners.
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4. Two actual samples of the following:
a. Roof shingles (6 inch x 6 inch).
b. Self-adhering membrane (6 inch x 6 inch).
c. Underlayment (6 inch x 6 inch).
d. Metal valley flashing (6 inch x 6 inch).
e. Ridge vent – none required (insulation located below deck).
1.6
QUALITY ASSURANCE
A. Manufacturer Qualifications: Provide all primary roofing products, including shingles,
underlayment, self-adhering membrane (leak barrier), and ventilation, by single
manufacturer.
B. Installer Qualifications: Installer must be approved for installation of all roofing
products to be installed under this section.
1.7
REGULATORY REQUIREMENTS
A. Provide a roofing system achieving an Underwriters Laboratories (UL) Class A fire
classification.
B. Install all roofing products in accordance with all federal, state and local building
codes.
C. All work shall be performed in a manner consistent with current OSHA guidelines.
D. Wind requirements – see structural drawings.
1.8
PREINSTALLATION MEETING
A. Timing: The meeting shall take place at the start of the roofing installation.
B. Attendees: Mandatory attendees shall include the manufacturer’s certified contractor
and the manufacturer’s representative. Other attendees shall include the Owner’s
representative, Architect or engineer’s representative, and the general contractor’s
representative.
C. Agenda: Certified contractor and manufacturer’s representative shall review all
pertinent requirements for the project, including but not limited to, scheduling,
weather considerations, project duration, and requirements for the specified
warranty.
1.9
DELIVERY, STORAGE, AND HANDLING
A. Store all products in manufacturer's unopened, labeled packaging until they are
ready for installation.
B. Store products in a covered, ventilated area, at temperature not more than
110 degrees F; do not store in direct sunlight.
C. Store bundles on a flat surface. Maximum stacking height shall not exceed
manufacturer’s recommendations. Store all rolls on end.
D. Store and dispose of solvent-based materials in accordance with all federal, state
and local regulations.
1.10
WEATHER CONDITIONS
A. Proceed with work only when existing and forecasted weather conditions will permit
work to be performed in accordance with manufacturer’s recommendations
1.11
EXTRA MATERIALS
A. Furnish one (1) square coverage of asphalt shingles identical to those installed in
unbroken bundles
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1.12
WARRANTY
A. Provide to the Owner a GAF-Elk WeatherStopper Golden Pledge Warranty, or
approved equal. Roofer must be a GAF-Elk Certified Master Elite Contractor.
1. Material Defects: Golden Pledge Warranty shall provide 100 percent coverage
for materials and labor for the first 20 years, then prorated thereafter.
2. Workmanship Errors: Golden Pledge Warranty shall provide 100 percent
coverage for workmanship errors for the first 20 years.
3. Installation must be for a full roof. Roofs installed on portions of buildings do not
qualify.
4. Roof system must not be installed over an existing roof, all existing roof materials
must be removed to the deck.
5. Required products include: GAF-Elk Deck-Armor Underlayment.
6. Required products include: GAF-Elk Weather Watch or StormGuard Leak Barrier
in valleys and around dormers, sidewalls, firewalls, plumbing vents, and
skylights.
7. Required products include: GAF-Elk pre-cut starter strip products (only those with
factory applied adhesive) at the eaves. Required products include: GAF-Elk
precut starter strip products (with factory applied adhesive) at the eaves and
rakes and you must install each shingle using 6 nails.
8. Required products include: GAF-Elk roofing shingles.
9. Required products include: GAF-Elk Ridge Cap Shingles or shingles that
correspond to the shingle product you are installing.
10. New metal flashings must be installed. Metal drip edge must be used at eaves
and at rake edges.
11. In addition to the requirements listed above, the Installer must register and pay
for this warranty. On projects that total more than 250 squares, the permanent
Golden Pledge Ltd Warranty will be issued only if the project passes GAF-Elk’s
final inspection. GAF-Elk reserves the right to withhold the warranty if the roof
has not been installed according to GAF-Elk’s written application instructions.
GAF-Elk also strongly recommends that your Master Elite Contractor schedule a
start-up and at least one interim inspection on projects by contacting GAF-Elk at
least three weeks prior to the start of roof work.
PART 2 – PRODUCTS
2.1
MANUFACTURERS
A. Design Basis: Acceptable Manufacturer: GAF-Elk, 1361 Alps Road, Wayne, NJ
07470. Telephone: 1-973-628-3000.
B. Alternate Manufacturers: Manufacturers not listed as the basis of design are subject
to full compliance of all specification requirements and must submit a written request
for approval at least ten (10) days prior to bid date.
1. Alternate manufacturers will only be approved by means of a written addendum
to all bidders. Voluntary alternates will not be considered, and will render the
bidder’s proposal unqualified.
2. No substitutions will be permitted after the bid date of this project.
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2.2
ASPHALT SHINGLES
A. Heavyweight, granule surfaced, self-sealing asphalt shingle with fiberglass reinforced
core and stain protection, which prevents pronounced discoloration from blue-green
algae through blends of granules. Architectural laminate with a 5 inch or 5-5/8 inch
exposure. UL 790 Class A rated with UL 997 Wind Resistance Label; ASTM D
7158, Class H; ASTM D 3161, Type 1; ASTM D 3018, Type 1; ASTM D 3462;
CSA 123.5-98; Dade County Approved, Florida Building Code Approved.
1. Timberline Prestique Lifetime High Definition Shingles, by GAF-Elk.
2. Color: As selected from manufacturers’ full range.
2.3
HIP AND RIDGE SHINGLES
A. High profile self-sealing hip and ridge cap shingle matching the color of selected roof
shingle. Each bundle covers approximately 20 linear feet.
1. Provide Timbertex Premium Ridge Cap Shingles, by GAF-ELK.
2.4
STARTER STRIP
A. Self-sealing starter shingle designed for all roof shingles. Each bundle covers
approximately 60/120 lineal feet.
1. Provide ProStart Starter Strip by GAF-ELK.
2.5
SELF ADHERING MEMBRANE
A. Self-adhering, self-sealing, bituminous leak barrier surfaced with fine, skid-resistant
granules. Each Roll contains approximately 150 square feet, 65 pounds, 36 inches
X 50 feet or 200 square feet, 85 pounds, 36 inches X 66.7 feet; 58 mils thick; ASTM
D1970.
1. Provide WeatherWatch, by GAF-ELK.
B. Self-adhering, self-sealing, bituminous leak barrier surfaced with a smooth
polyethylene film. Each Roll contains approximately 200 square feet, 85 pounds, 36
inches X 66.7 feet; 60 mils thick.
1. Provide StormGuard, by GAF-ELK.
2.6
SHINGLE UNDERLAYMENT
A. Premium, water repellant, breather type non-asphaltic underlayment. UV stabilized
polypropylene construction. Meets or exceeds ASTM D226 Type I or II and D4869
Type I or II. Approved by Dade Country, Florida Building Code, and ICC.
1. Provide Deck-Armor Premium Breathable Roof Deck Protection, by GAF-ELK.
2.7
ROOFING CEMENT
A. Asphalt roofing cement meeting the requirements of ASTM D4586, Type I or II; non
asbestos fibrated and per manufacturer requirements.
2.8
ATTIC VENTILATION
A. Thermal envelope is below the roof deck therefore no attic ventilation required.
B. See soffit vent on drawings.
2.9
NAILS
A. Stainless Steel: 12 gauge, minimum shank; 0.375 inch head minimum diameter;
smooth, barbed or deformed shank, with heads. Length must be sufficient to
penetrate into solid wood at least 3/4 inch or through sheathing a minimum 3/4 inch.
B. Prevent galvanic action by providing nails in mastic for separation of metals.
C. Comply with ASTM F1667.
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2.10
METAL FLASHING
A. 0.24-gauge hot-dip galvanized steel sheet, complying with ASTM A653/A653M,
G90/Z275.
B. 0.032 inch minimum aluminum sheet, complying with ASTM B209; see drawings for
gauges.
PART 3 – EXECUTION
3.1
EXAMINATION
A. Do not begin installation until the roof deck has been properly prepared.
B. If roof deck preparation is the responsibility of another Installer, notify the Architect of
unsatisfactory preparation before proceeding.
3.2
PREPARATION
A. Clean deck surfaces thoroughly prior to installation of eave protection membrane and
underlayment.
B. At areas that receive eave protection membrane, fill knotholes and cracks with latex
filler.
3.3
INSTALLATION OF UNDERLAYMENTS
A. General:
1. Install using methods recommended by manufacturer, in accordance with local
building codes. When local codes and application instructions are in conflict, the
more stringent requirements shall take precedence.
B. Eaves:
1. Install eaves edge metal flashing tight with fascia boards; lap joints 2 inches and
seal with plastic cement or high quality urethane sealant; nail at the top of the
flange.
2. On all roofs between 2/12 and 4/12 (low slopes) install eave protection
membrane up the slope from eave edge a full 36 inches beyond the interior
“warm wall”. Lap ends 6 inches and bond.
C. Valleys:
1. Install eave protection membrane at least 36 inches wide and centered on the
valley. Lap ends 6 inches and seal.
2. Where valleys are indicated to be "open valleys,” install metal flashing over eave
protection membrane before roof deck underlayment is installed; DO NOT nail
through the flashing. Secure the flashing by nailing at 18 inches on center just
beyond edge of flashing so that nail heads hold down the edge.
D. Shingle Underlayment Application
1. Shingle Underlayment shall be installed over a clean, dry deck.
2. Install self-adhesive membrane eaves, valleys, rakes, dormers and other
vulnerable leak areas.
3. Lay shingle underlayment over deck and overlap 3 inches at side laps and 6 inches
at end laps.
4. For exposure to rain, overlap 12 inches at end laps.
5. For Side and End Laps: Fasten shingle underlayment 6 inches on center for high
wind areas.
6. For Middle of the Roll: Fasten shingle underlayment 12 inches on center for high
wind areas.
7. For exposure to rain, completely cover all side laps, end laps and fasteners with tape.
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8. For long term exposure see complete shingle underlayment installation
instructions for side lap detail.
9. Apply tape over all fasteners at the center of the roll to prevent rain from entering
at the fasteners.
10. For slopes less than 2:12, a double application of shingle underlayment is
required. See manufacturer’s shingle underlayment installation instructions for
complete requirements.
E. Penetrations:
1. Vent Pipes: Install a 24 inch square piece of eave protection membrane lapping
over roof deck underlayment; seal tightly to pipe.
2. Vertical Walls: Install eave protection membrane extending at least 6 inches up
the wall and 12 inches on to the roof surface. Lap the membrane over the roof
deck underlayment.
3. Equipment Curb (if required): Install protection membrane around entire curb
extending at least 6 inches up the wall and 12 inches on to the roof surface. Lap
the membrane over the roof deck underlayment.
4. Rake Edges: Install metal edge flashing over eave protection membrane and roof
deck underlayment; set tight to rake boards; lap joints at least 2 inches and seal
with plastic cement; secure with nails.
3.4
INSTALLATION OF SHINGLES
A. General:
1. Install in accordance with manufacturer instructions and local building codes.
When local codes and application instructions are in conflict, the more stringent
requirements shall take precedence.
2. Minimize breakage of shingles by avoiding dropping bundles on edge, by
separating shingles carefully (not by "breaking" over ridge or bundles), and by
taking extra precautions in temperatures below 40 degrees F.
3. Handle carefully in hot weather to avoid scuffing the surfacing, or damaging the
shingle edges.
B. Placement and Nailing:
1. Secure with 6 nails per shingle per manufacturer’s instructions or local codes.
2. Placement of nails varies based on the type of shingle specified. Consult the
application instructions for the specified shingle for details.
3. Nails must be driven flush with the shingle surface. Do not overdrive or underdrive
the nails.
4. Shingle offset varies based on the type of shingle specified. Consult the application
instructions for the specified shingle for details.
C. Valleys
1. Install valleys using the "closed cut valley" method:
a. Run the first course of shingles from the higher roof slope across the valley at
least 12 inches.
b. Run succeeding courses of shingles from the lower roof slope across the
valley at least 12 inches and nail not closer than 6 inches to center of valley.
c. Run shingles from the upper roof slope into the valley and trim 2 inches from
the center line.
D. Penetrations
1. All Penetrations are to be flashed according to manufacturer, ARMA and NRCA
application instructions and construction details.
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3.5
VENTILATION
A. General
1. See area of soffit ventilation on drawings.
2. Attic is not ventilated; it is sealed.
3.6
PROTECTION
A. Protect installed products from foot traffic until completion of the project.
B. Any roof areas that are not completed by the end of the workday are to be protected
from moisture and contaminants.
END OF SECTION 073113
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SECTION 076000 – FLASHING AND SHEET METAL
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 1 Specification Sections, apply to this Section.
1.2
SUMMARY
A. This section includes:
1. Aluminum running flashing (aluminum fascia), including receiver flashing and
counterflashing.
2. Sealants for flashing and sheet metal work.
1.3
SUBMITTALS
A. Product Data: Manufacturer’s technical data, installation instructions and general
recommendations for each specified sheet material and fabricated product.
B. Shop drawing indicating each product detail at large scale, professionally drafted;
Architect’s AutoCAD files are not shop drawings and are not available.
C. Shop drawing to indicate all fasteners; include size, type and material.
1.4
INDUSTRY STANDARDS
A. Flashing and sheet metal shall meet the following standards at a minimum.
1. Fabrication: Sheet Metal and Air Conditioning Contractor’s National Association
(SMACNA) Steel Metal Manual.
2. Installation: National Roofing Contractors Association (NRCA) Roofing and
Waterproofing Manual.
1.5
PROJECT CONDITIONS
A. Coordinate with adjoining work for proper sequencing.
PART 2 – PRODUCTS
2.1
SHEET METAL FLASHING AND TRIM MATERIALS
A. Sheet Aluminum: ASTM B209, alloy 3003, temper H14, 0.050-inch thick except as
otherwise indicated.
B. Fasteners: Same metal as flashing/sheet metal or other non-corrosive metal as
recommended by sheet manufacturer. Match finish of exposed heads with material
being fastened. Provide neoprene/stainless steel washers where required for
weather resistance.
C. Bituminous Coating: SSPC - Paint 12, solvent type bituminous mastic nominally free
of sulfur, compound for 15-mil dry film thickness per coat.
D. Mastic Sealant: Polyisobutylene; nonhardening, nonskinning, nondrying,
non-migrating sealant.
E. Elastomeric Sealant: Single-component, non-sag silicone sealant, ASTM C920,
Type S, Grade NS, Class 25, with additional movement capability; equal to
Dow Corning 790.
F. Epoxy Seam Sealer: Two-part noncorrosive metal seam cementing compound,
recommended by metal manufacturer for exterior/interior nonmoving joints including
riveted joints.
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G. Reglets: Metal units of type and profile indicated, compatible with flashing indicated,
noncorrosive.
1. Surface-Mounted Type: Provide with slotted holes for fastening to substrate, with
neoprene or other suitable weatherproofing washers, and with channel for sealant
at tope edge, equal to Fry Reglet Corp. Type SM. Where space does not permit
installation of sealant, provide integral seal type equal to Superior Type B-1.
H. Metal Accessories: Provide sheet metal clips, straps, anchoring devices, and similar
accessory units as required for installation of work, matching or compatible with
materials being installed, noncorrosive, size and gauge required for performance.
2.2
FABRICATED UNITS
A. General Metal Fabrication: Shop-fabricate work to greatest extent possible or
provide standard manufactured units that comply with requirements. Comply with
details shown and with applicable requirements of SMACNA Sheet Metal Manual,”
and NRCA “Roofing and Waterproofing Manual.” Formwork to fit snugly to
substrates. Comply with materials manufacturer instructions and recommendations
for forming material. Form exposed sheet metal work without excessive oil-canning,
buckling, and tool marks, true to line and levels indicated, with exposed edges folded
back to form hems.
B. Seams: Fabricate nonmoving seams in sheet metal with flat-lock seams. Form
aluminum seams with epoxy seam sealer; rivet joints for additional strength were
required.
C. Expansion Provisions: Space joints at maximum of 10 feet. Where lapped or
bayonet-type expansion provisions in work cannot be used or would not be
sufficiently water/weatherproof, form expansion joints of intermeshing hooked
flanges, not less than 1 inch deep, filled with mastic sealant (concealed within joints).
D. Sealant Joints: Where movable, non-expansion type, joints are indicated or required
for proper performance of work, from metal to provide for proper installation of
elastomeric sealant, in compliance with SMACNA standards.
E. Separations: Provide for separation of metal from non-compatible metal or corrosive
substrates by coating concealed surfaces at locations of contact, with bituminous
coating or other permanent separation as recommended by manufacturer/fabricator.
F. Shop-Fabricated Splices: Fabricate aluminum running units with formed aluminum
joint covers for installation behind main members where possible. Fabricate mitered
welded corner units and intersections. Provide concealed splices of same profile as
intersecting units with minimum 4 inch flanges. Seal all joints with elastomeric sealant.
PART 3 – EXECUTION
3.1
INSTALLATION REQUIREMENTS
A. General: Comply with NRCA “Roofing and Waterproofing Manual,” and with
SMACNA “Architectural Sheet Metal Manual.” Anchor units of work securely in place
by methods indicated providing for thermal expansion of metal
units; conceal fasteners where possible, and set units true to line and level as
indicated. Install work with laps, joints, and seams that will be permanently
watertight and weatherproof.
B. Underlayment: Where stainless or aluminum is to be installed directly on
cementitious or wood substrates, install a slip sheet of red rosin paper and a course
of polyethyelene underlayment.
C. Bed flanges of work in a thick coat of bituminous roofing cement where required for
waterproofing performance.
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D. Install counterflashing in reglets, either by snap-in seal arrangement or by welding in
place for anchorage and filling reglet with elastomeric sealant.
E. Sealant Installation: Comply with requirements of Section 079000 – JOINT SEALANTS,
and manufacturer’s recommendations.
3.2
CLEANING AND PROTECTION
A. Clean exposed metal surfaces, removing substances that might cause corrosion of
metal or deterioration of finishes.
B. Protection: Advise Contractor of required procedures for surveillance and protection
of flashing and sheet metal work during construction to ensure that work will be
without damage or deterioration other than natural weathering at time of substantial
completion.
END OF SECTION 076000
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SECTION 079000 – JOINT SEALANTS
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and other Division 1 Specification Sections, apply to this Section.
B. See structural drawings for sealant joints at built-in reinforced masonry control joints.
1.2
SUMMARY
A. Provide all materials, equipment and labor necessary to prepare surfaces and install
sealant as specified below and as shown.
1.3
QUALITY ASSURANCE
A. Applicator Qualifications: Applicator shall have a minimum of 5 years experience
installing sealants.
B. Compatibility with substrate: Applicator shall be responsible for verifying that sealants
used are compatible with joint substrates.
C. Joint tolerance: Joint width/depth ratios are critical to sealant performance.
Compliance with the manufacturers' limitation is required.
D. Manufacturer: The manufacturer of the sealant used shall have been in the business
of manufacturing the specified types of such sealants for not less than 10 years.
E. Comply with ASTM C 1193.
1.4
SUBMITTALS
A. Product literature: Submit product data sheets and primer literature and the
manufacturer's installation instructions.
B. Color samples: Copies of the manufacturer's standard color charts shall be
submitted.
1.5
PRODUCT DELIVERY AND STORAGE:
A. Delivery shall be in the manufacturer's original unopened container, clearly identifying
each product specified, relating it to the product literature submitted.
B. Storage shall be in accordance with manufacturer's recommendation, with proper
precautions concerning shelf life, temperature, humidity and similar storage factors
ensuring the fitness of the material when installed.
1.6
GUARANTEES:
A. Sealant joints shall be guaranteed against adhesive and cohesive failure of the
sealant and against water penetration through the sealed joint for 20 years.
PART 2 – PRODUCTS
2.1
MATERIALS
A. Exterior vertical and horizontal (non-traffic) joints at window frames, window
frame/stucco intersection; intersections of precast work with masonry or stucco;
intersections of stucco and masonry shall be silicone sealant equal to Dow Corning 790.
B. Interior perimeter joints at interior door frames; perimeter joints between interior wall
surfaces and frames of interior doors/windows shall be latex sealant.
C. Precompressed Expanding Foam Sealant: Permanently elastic, high density,
open-cell polyurethane foam impregnated with polymer modified asphalt; equal to
Emseal 25 V.
CYBES-BLDG
JOINT SEALANTS
079000–1
D. Caulking: FS TT-S-1543 (a), Class A. One component, non-sag, mildew resistant
silicone sealant, shore A hardness of 25-30.
E. Primer: Apply in accordance with manufacturer's instructions, with all primers being
applied prior to the installation of backer rod or bond breaker tape. Manufacturer shall
be consulted for all surfaces not specifically covered in submittal application
instructions. If a stain type primer is used, apply materials in a manner that will
prevent exposed stain residue related to application procedures.
F. Backer Rod: Shall be open or closed cell polyethylene or polyurethane as
recommended by the sealant manufacturer.
G. Bond Breaker Tape: An acceptable polyethylene or similar type bond breaker tape
shall be used to prevent three-sided adhesion in locations where backer rod cannot
be used.
H. Priming required at metal and as per manufacturer’s requirements.
I. Vertical Expansion Joint (Concrete Exterior/Interior): Sonneborn Sonolastic 150.
PART 3 – EXECUTION
3.1
INSPECTION
A. Substrate surface shall be inspected to ensure that no bond-breaker materials
contaminate the surface to which the sealant is to adhere and to ensure that unsound
substrates are repaired. Installation of sealant shall be evidence of acceptance of the
substrate.
B. Joint dimensions shall be verified prior to installation of the sealant to ensure that all
dimensions are within tolerance established in the manufacturer's literature.
Unacceptable variations shall be called to the Architect’s attention for resolution prior
to installing any material.
3.2
PREPARATION
A. Prepare all joints in accordance with manufacturer's recommended instruction to
ensure maximum adhesion. Prime as required, protecting all adjacent exposed
surfaces.
3.3
INSTALLATION
A. Backer rod shall be installed using only blunt or rounded tools which will ensure a
uniform (+ or - 1/8 inch) depth without puncturing the materials. Backer rod shall be
minimum of 50 percent oversized for closed cell and minimum of 50 percent
oversized for open cell backer rod, unless otherwise required by the manufacturer.
B. Surrounding surface shall be protected as required to ensure that no sealant
contaminate these surfaces.
C. Sealant shall be prepared as required, including proper mixing of multi-component
sealants, then installed in accordance with manufacturer's recommendations and
instructions in order to ensure proper width/depth ratio. Take all necessary steps to
prevent these three-sided adhesions. Sealant depth shall be one-half of joint width,
with a minimum depth of 1/4 inch, and a maximum of 1/2 inch, unless otherwise
required by the manufacturer.
D. Both temperature and dampness conditions may restrict application of these sealants.
Comply with manufacturer's instructions.
END OF SECTION 079000
CYBES-BLDG
JOINT SEALANTS
079000–2