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SECTION 08620
UNIT SKYLIGHTS
 
 
Copyright 2017 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** Kingspan Light+Air; Fixed and openable unit skylight products.
.
This section is based on the products of Kingspan Light+Air, which is located at:
Kingspan Light+Air
401 E. Goetz Ave.
P. O. Box 2515
Santa Ana, CA 92707-0515
Toll Free: 800-854-8618
Phone: 714-540-8950
Fax: 714-540-5415
Web: www.bristolite.com
Email: ___________
Kingspan Light + Air, formerly Bristolite Daylighting Systems is one of the most recognized names in daylighting. For over 50 years 42 years we have led the industry with many skylight and heat and smoke vent designs, sizes and options.
Our comprehensive product line servicing the industrial, commercial, retail, municipal and residential markets has always been known for innovation, performance, dependability, longevity and exceptional value. Energy efficiency, reliability and safety are the cornerstones of our design desigh philosophy. We are the forerunner in daylighting design programs that literally begin with "turning the lights off" and using FREE natural daylight for illumination of interior building spaces saving dollars and precious energy.
The Kingspan Light + Air culture was built on utilizing the vast knowledge and skills of our employees in a true teamwork environment to take care of our customers with energy and passion.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Unit Skylights.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 06100 - Wood Framing; Wood curbs and nailers.
B.
Section 07260 - Vapor Retarders.
C.
Section 07510 - Built-Up Bituminous Roofing.
D.
Section 07520 - Modified Bituminous Membrane Roofing.
E.
Section 07530 - Elastomeric Membrane Roofing.
F.
Section 07540 - Thermoplastic Membrane Roofing.
G.
Section 07560 - Fluid-Applied Roofing.
H.
Section 07600 - Flashings.
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
AAAA/WDMA/CSA 101/I.S.2/A440 - North American Fenestration Standard/Specification for windows, doors and skylights.
B.
AAMA 2603 - Voluntary Specifications, Performance Requirements and Test Procedures for Pigmented Organic Coatings on Aluminum and Panels
C.
ASTM B 221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
D.
ASTM D 635 - Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position.
E.
ASTM D 1929 - Standard Test Method for Determining Ignition Temperature of Plastics.
F.
ASTM D 2843 - Standard Test Method for Density of Smoke from the Burning or Decomposition of Plastics.
G.
ASTM F1642 and GSA TSO Standard Testing for Glazings Systems Subject to Airblast Loadings and Dynamic Overpressure Loadings.
H.
ICC AC 17 - Acceptance Criteria for Sloped Glass Glazed Unit Skylights and Sloped Glass Glazing.
I.
OSHA Standards - 29 CFR 1910.23, Guarding Floor Openings and Holes.
J.
FM 4430 - Approval Standard for Heat and Smoke Vents
K.
FM 4431 - Approval Standard for Skylights
L.
U.S. Green Building Council, LEED Building Design & Construction (BD+C) 2009 (Version 3.0) (LEED v2009).
M.
U.S. Green Building Council, LEED Building Design and Construction (BD+C)Version 4.0 Rating System. (LEED v4.0)
1.4
DESIGN / PERFORMANCE REQUIREMENTS
 
** NOTE TO SPECIFIER ** Select the Performance Requirements for the Skylight Model(s) specified and delete those that are not applicable.
 
A.
Quasar Skylights:
1.
Thermal performance must be NFRC Certified and posted as such on nfrc.org.
2.
Thermal and VLT performance: 70 percent VLT, 0.73 U Factor, 0.47 SHGC
3.
Conform with Federal, state and local code bodies having jurisdiction.
4.
Designed to withstand forces of nature deemed necessary by those code bodies for specified project location.
5.
Conform to recommendations of AA Specifications for Aluminum Structures.
6.
Meet or exceed thermal performance values of ICC IECC.
7.
Meet or exceed requirements of ASHRAE 90.1.
8.
Designed to carry minimum 20 psf tributary roof load or greater per site as specified in applicable Building Code.
9.
Tested to AAMA/WDMA/CSA 101/I.S.2/A440.
10.
Compliant with OSHA CFRs.
11.
Performance criterions supported by test reports from an accredited, third party test laboratory.
B.
Quasar Low E Skylights:
1.
Thermal performance must be NFRC Certified and posted as such on nfrc.org.
2.
Thermal and VLT performance: 49 percent VLT, 0.31 U Factor, 0.24 SHGC
3.
Conform with Federal, state and local code bodies having jurisdiction.
4.
Designed to withstand forces of nature deemed necessary by those code bodies for specified project location.
5.
Conform to recommendations of AA Specifications for Aluminum Structures.
6.
Meet or exceed thermal performance values of ICC IECC.
7.
Meet or exceed requirements of ASHRAE 90.1.
8.
Designed to carry minimum 20 psf tributary roof load or greater per site as specified in applicable Building Code.
9.
Tested to AAMA/WDMA/CSA 101/I.S.2/A440.
10.
Compliant with OSHA CFRs.
11.
Sound transmission performance: Minimum STC rating of 34.
12.
Performance criterions supported by test reports from an accredited, third party test laboratory.
C.
Tufflite Skylights:
1.
Thermal performance must be NFRC Certified and posted as such with the NFRC.
2.
Thermal and VLT performance:
a.
Tufflite 60 percent VLT, 0.71 U Factor, 0.26 SHGC.]
b.
Tufflite FM Approved and ASTM / GSA Anti-Terrorism Blast Resistance Approved 60 percent VLT, 0.71 U Factor, 0.26 SHGC.
c.
Tufflite HWHS Miami Dade County Hurricane Approved and Florida Building Code Approved 60 percent VLT, 0.80 U Factor, 0.26 SHGC.
d.
Tufflite C/I 50 percent VLT, 0.44 U Factor, 0.22 SHGC.
e.
Tufflite I 58 percent VLT, 0.44 U Factor, 0.20 SHGC.
3.
Conform with Federal, state and local code bodies having jurisdiction.
4.
Designed to withstand forces of nature deemed necessary by those code bodies for specified project location.
5.
Meet or exceed thermal performance values of ICC IECC.
6.
Meet or exceed requirements of ASHRAE 90.1.
7.
Conform to recommendations of AA Specifications for Aluminum Structures.
8.
Designed to carry minimum 20 psf tributary roof load or greater per site as specified in applicable Building Code.
9.
Tested to AAMA/WDMA/CSA 101/I.S.2/A440.
10.
Compliant with OSHA CFRs.
11.
Performance criterions supported by test reports from an accredited, third party test laboratory.
12.
Certified to FBC TAS 201, 202, and 203.
13.
FM Approval Class Number 4431
D.
Bristol Skylights:
1.
Thermal performance must be NFRC Certified and posted as such on nfrc.org. .
2.
Thermal and VLT performance: Bristol 53 percent VLT, 0.71 U Factor, 0.31 SHGC
3.
Conform with Federal, state and local code bodies having jurisdiction.
4.
Designed to withstand forces of nature deemed necessary by those code bodies for specified project location.
5.
Conform to recommendations of AA Specifications for Aluminum Structures.
6.
Meet or exceed thermal performance values of ICC IECC.
7.
Meet or exceed requirements of ASHRAE 90.1.
8.
Designed to carry minimum 20 psf tributary roof load or greater per site as specified in applicable Building Code.
9.
Tested to AAMA/WDMA/CSA 101/I.S.2/A440.
10.
Compliant with OSHA CFRs.
11.
Performance criterions supported by test reports from an accredited, third party test laboratory.
E.
Coolite Skylights:
1.
Thermal performance must be NFRC Certified and posted as such on nfrc.org. .
2.
Thermal and VLT performance:
a.
Coollite acrylic 54 percent VLT, 0.71 U Factor, 0.26 SHGC
b.
Coollite polycarbonate 60 percent VLT, 0.71 U Factor, 0.26 SHGC
3.
Conform with Federal, state and local code bodies having jurisdiction.
4.
Designed to withstand forces of nature deemed necessary by those code bodies for specified project location.
5.
Conform to recommendations of AA Specifications for Aluminum Structures.
6.
Meet or exceed thermal performance values of ICC IECC.
7.
Meet or exceed requirements of ASHRAE 90.1.
8.
Designed to carry minimum 20 psf tributary roof load or greater per site as specified in applicable Building Code.
9.
Tested to AAMA/WDMA/CSA 101/I.S.2/A440.
10.
Compliant with OSHA CFRs.
11.
Performance criterions supported by test reports from an accredited, third party test laboratory.
F.
Coolite I Skylights:
1.
Thermal performance must be NFRC Certified and posted as such on nfrc.org. .
2.
Thermal and VLT performance: Coollite I 50 percent VLT, 0.45 U Factor, 0.20 SHGC.
3.
Conform with Federal, state and local code bodies having jurisdiction.
4.
Designed to withstand forces of nature deemed necessary by those code bodies for specified project location.
5.
Conform to recommendations of AA Specifications for Aluminum Structures.
6.
Meet or exceed thermal performance values of ICC IECC.
7.
Meet or exceed requirements of ASHRAE 90.1.
8.
Designed to carry minimum 20 psf tributary roof load or greater per site as specified in applicable Building Code.
9.
Tested to AAMA/WDMA/CSA 101/I.S.2/A440.
10.
Compliant with OSHA CFRs.
1.5
SUBMITTALS
A.
Submit under provisions of Section 01300.
B.
Product Data: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Shop Drawings: Indicate plans, sections, configurations, dimensions, locations, fastening methods, and installation details.
 
** NOTE TO SPECIFIER ** Delete the following paragraphs if LEED is not applicable.
 
D.
LEED Submittals: Provide documentation of how the requirements of Credit will be met:
1.
List of proposed materials with recycled content. Indicate post-consumer recycled content and pre-consumer recycled content for each product having recycled content.
2.
Regional Materials: Indicate cost of products harvested, extracted, recovered, or manufactured within 500 mile radius of Project site.
 
** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
 
E.
Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.
F.
Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square, representing actual product, color, and patterns.
G.
Manufacturer's Certificates: Certify products meet or exceed specified requirements.
H.
Closeout Submittals: Provide manufacturer's maintenance instructions that include recommendations for periodic checking and adjustment and periodic cleaning and maintenance of all components.
1.6
QUALITY ASSURANCE
A.
Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with minimum ten years documented experience.
B.
Installer Qualifications: Company specializing in installing products similar to those specified in this section with minimum five years documented experience.
 
** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
 
C.
Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
1.
Finish areas designated by Architect.
2.
Do not proceed with remaining work until workmanship, color, and sheen are approved by Architect.
3.
Refinish mock-up area as required to produce acceptable work.
4.
Accepted mock-ups shall be comparison standard for remaining Work
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Store products in manufacturer's unopened packaging until ready for installation.
B.
Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
1.8
SEQUENCING
A.
Ensure that locating templates and other information required for installation of products of this section are furnished to affected trades in time to prevent interruption of construction progress.
B.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
1.9
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.
1.10
WARRANTY
A.
Provide manufacturer's standard five year limited warranty against manufacturing defects, outlining terms, conditions, and exclusions from coverage.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Bristolite Skylights, which is located at: 401 E. Goetz Ave. P. O. Box 2515; Santa Ana, CA 92707-0515; Toll Free Tel: 800-854-8618; Tel: 714-540-8950; Fax: 714-540-5415; Email: request info (sales@bristolite.com); Web: www.bristolite.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01600.
2.2
MATERIALS
A.
Aluminum Extrusions: ASTM B221, 6063-T6 alloy and temper.
2.3
UNIT SKYLIGHTS
A.
Quasar Prismatic:
1.
Dome Shape:
 
** NOTE TO SPECIFIER ** Select the shape required and delete those not required.
 
a.
Double hip.
b.
Pyramid.
c.
Triarch.
2.
Glazing:
 
** NOTE TO SPECIFIER ** Include the following for single glazed skylights. Select clear or white as required.
 
a.
Clear prismatic acrylic
b.
White prismatic acrylic.
 
** NOTE TO SPECIFIER ** Include the following for double or triple glazed skylights. Select clear or white as required.
 
3.
Glazing: Quasar Prismatic Only
 
** NOTE TO SPECIFIER ** Select clear or white as required.
 
a.
Outer glazing: Clear prismatic acrylic.
b.
Outer glazing: White prismatic acrylic.
 
** NOTE TO SPECIFIER ** Select clear or white as required.
 
c.
Inner glazing: Clear prismatic acrylic.
d.
Inner glazing: White prismatic acrylic.
4.
Dome Material: Tested to and pass:
a.
UBC-26-7 and ASTM D 635 achieving minimum CC1 rating.
b.
ASTM D 2843.
c.
ASTM D 1929.
B.
Quasar LowE:
1.
Dome Shape:
 
** NOTE TO SPECIFIER ** Select the shape required and delete those not required.
 
a.
Bubble
b.
Double hip
c.
Low profile
d.
Pyramid
2.
Glazing:
a.
Outer glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the one not required.
 
1)
Coollite acrylic
2)
Coollite polycarbonate.
b.
Inner glazing: Multi-wall polycarbonate panel filled with Nano Insulgel / Silica Aerogel / Lumira.
 
** NOTE TO SPECIFIER ** Select thickness required and delete the those not required.
 
1)
10 mm thick.
2)
16 mm thick.
3)
25 mm thick.
3.
Dome Material: Tested to and pass:
a.
UBC-26-7 and ASTM D 635 achieving minimum CC2 rating.
b.
ASTM D 2843.
c.
ASTM D 1929.
d.
FM 4431 (hail test).
C.
Quasar Prismatic:
1.
Dome Shape:
 
** NOTE TO SPECIFIER ** Select the shape required and delete those not required.
 
a.
Double hip
b.
Pyramid
c.
Triarch
 
** NOTE TO SPECIFIER ** Select one of the following two glazing paragraphs and delete the one not required.
 
2.
Single Glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the one not required.
 
a.
Clear prismatic acrylic
b.
White prismatic acrylic
3.
Triple Glazing:
a.
Outer glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the one not required.
 
1)
Clear prismatic acrylic
2)
White prismatic acrylic
b.
Inner glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the one not required.
 
1)
Clear prismatic acrylic
2)
White prismatic acrylic
4.
Dome Material: Tested to and pass:
a.
UBC-26-7 and ASTM D635 achieving minimum CC1 rating.
b.
ASTM D 2843.
c.
ASTM D 1929.
D.
Tufflite:
1.
Model:
 
** NOTE TO SPECIFIER ** Select the Tufflite Model(s) required and delete those not required.
 
a.
Tufflite
b.
Tufflite FM Approved and ASTM / GSA Anti-Terrorism Blast Resistance Approved
c.
Tufflite HWHS Miami Dade County Hurricane Approved and Florida Building Code Approved
d.
Tufflite C/I
e.
Tufflite I
2.
Dome Shape:
 
** NOTE TO SPECIFIER ** Select the shape required and delete those not required.
 
a.
Bubble
b.
Double hip
c.
Low profile
d.
Pyramid
e.
Triarch, required for FM Approved
 
** NOTE TO SPECIFIER ** Select one of the following two glazing paragraphs and delete the one not required.
 
3.
Single Glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the ones not required.
 
a.
Clear polycarbonate
b.
White polycarbonate
c.
Clear polycarbonate prismatic
d.
White polycarbonate prismatic
e.
Clear multi-wall polycarbonate panel
f.
Opal multi-wall polycarbonate panel
4.
Double or Triple Glazing:
a.
Outer glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the ones not required.
 
1)
Clear polycarbonate
2)
White polycarbonate
3)
Coollite Polycarbonate
4)
Clear polycarbonate prismatic
5)
White polycarbonate prismatic.
b.
Inner glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the ones not required.
 
1)
Clear prismatic acrylic
2)
White prismatic acrylic
3)
Clear colorless acrylic
4)
Clear polycarbonate
5)
White polycarbonate
6)
Clear polycarbonate prismatic
7)
White polycarbonate prismatic
8)
Multi- wall polycarbonate Insulair panel
a)
10 mm thick
b)
16 mm thick
5.
Dome Material: Tested to and pass:
a.
UBC-26-7 and ASTM D635 achieving minimum CC1 rating.
b.
ASTM D 2843.
c.
ASTM D 1929.
d.
FM 4431 (hail test).
E.
Bristol:
1.
Dome Shape:
 
** NOTE TO SPECIFIER ** Select the shape required and delete those not required.
 
a.
Bubble
b.
Double hip
c.
Low profile
d.
Pyramid
 
** NOTE TO SPECIFIER ** Select one of the following two glazing paragraphs and delete the one not required.
 
2.
Single Glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the ones not required.
 
a.
Bronze acrylic
b.
Clear acrylic
c.
Grey acrylic
d.
Medium white acrylic
e.
High white acrylic
3.
Triple Glazing:
a.
Outer glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the ones not required.
 
1)
Bronze acrylic
2)
Clear acrylic
3)
Grey acrylic
4)
Medium white acrylic
5)
High white acrylic.
b.
Inner glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the ones not required.
 
1)
Clear acrylic
2)
Medium white acrylic
3)
High white acrylic
4.
Dome Material: Tested to and pass:
a.
UBC-26-7 and ASTM D635 achieving minimum CC1 rating.
b.
ASTM D 2843.
c.
ASTM D 1929.
F.
Coollite:
1.
Dome Shape:
 
** NOTE TO SPECIFIER ** Select the shape required and delete those not required.
 
a.
Bubble
b.
Double hip
c.
Low profile
d.
Pyramid
e.
Outer glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the one not required.
 
1)
Coollite acrylic
2)
Coollite polycarbonate
f.
Inner glazing:
 
** NOTE TO SPECIFIER ** Select material required and delete the ones not required.
 
1)
Clear prismatic acrylic
2)
White prismatic acrylic
3)
Clear colorless acrylic
4)
Clear polycarbonate
5)
White polycarbonate
6)
Clear polycarbonate prismatic
7)
White polycarbonate prismatic
2.
Dome Material: Tested to and pass:
a.
UBC-26-7 and ASTM D635 achieving minimum CC1 rating.
b.
ASTM D 2843.
c.
ASTM D 1929.
G.
Coollite I:
1.
Dome Shape:
 
** NOTE TO SPECIFIER ** Select the shape required and delete those not required.
 
a.
Bubble
b.
Double hip
c.
Low profile
d.
Pyramid
e.
Outer glazing:
1)
Coollite acrylic
f.
Inner glazing:
1)
Multi- wall polycarbonate panel, Insulair
 
** NOTE TO SPECIFIER ** Select thickness required and delete the one not required.
 
a)
10 mm thick
b)
16 mm thick
2.
Dome Material: Tested to and pass:
a.
UBC-26-7 and ASTM D635 achieving minimum CC1 rating.
b.
ASTM D 2843.
c.
ASTM D 1929.
 
** NOTE TO SPECIFIER ** Include the following paragraphs for skylights with a curb-mounted frame.
 
H.
Frame:
1.
Type: Curb mounted.
2.
Construction:
a.
Architectural grade extruded aluminum, minimum 0.075 inch thick.
b.
Squared with 90 degree corners and flat on one plane by insertion of corner stabilizers prior to full heli arc welding.
c.
Full perimeter condensation trough with minimum of six non-clog weep holes routed to outside of frame.
 
** NOTE TO SPECIFIER ** Include the one of the following two paragraph for Curb mounted, thermally broken skylights.
 
d.
Contain AAMA compliant "poured and debridged" long life, polyurethane thermal break separating interior and exterior aluminum.
e.
Utilize continuous UL Listed PVC long life "thermal barrier break" insulating interior and exterior aluminum.
3.
Frame cap:
a.
Architectural grade extruded aluminum, minimum 0.050 inch thick.
b.
Frame cap squared and flat prior to full held-arc welding.
4.
Sealing Gasket: Custom formed, UL Listed, 25 year, engineered thermoplastic.
5.
Finish:
 
** NOTE TO SPECIFIER ** Select the frame finish required and delete those not required.
 
a.
Bronze anodized
b.
Clear anodized
c.
Fluoropolymer coated, color as selected from the manufacturers standard colors.
d.
Mill finish
e.
White painted.
 
** NOTE TO SPECIFIER ** Include the following paragraph for Curb mounted skylights, with thermal barrier break and curb seal tape.
 
6.
Curb Seal Tape: 1-1/2 inch wide Ethylene Propylene Diene Monomer tape.
 
** NOTE TO SPECIFIER ** Include the following paragraphs for skylights with a self-flashing frame.
 
I.
Frame:
1.
Curb type: Self-flashing.
2.
Frame configuration:
 
** NOTE TO SPECIFIER ** Select the configuration required and delete the one not required.
 
a.
Single wall.
b.
Double wall.
3.
Curb height:
 
** NOTE TO SPECIFIER ** Select the curb height required and delete those not required. Curb heights are available from 4 to 28 inches.
 
a.
9 inches.
b.
12 inches.
c.
18 inches.
d.
__ inches.
4.
Curb construction:
a.
Architectural grade extruded aluminum, minimum 0.075 inch thick, with 2.75 inch roof mounting flange.
b.
Squared with 90 degree corners and flat on one plane by insertion of corner stabilizers prior to full heli arc welding.
c.
Full perimeter condensation trough with minimum of six non-clog weep holes routed to outside of frame.
 
** NOTE TO SPECIFIER ** Include the paragraph following for an insulated curb frame
 
d.
Insulate with 1 inch thick polyisocyanurate insulation bonded to interior face of frame.
 
** NOTE TO SPECIFIER ** Include the following paragraph for a wood nailer attached to curb frame.
 
e.
Wood nailer factory attached to curb frame.
 
** NOTE TO SPECIFIER ** Include the one of the following two paragraph for self flashing, thermally broken skylights.
 
f.
Contain AAMA compliant "poured and debridged" long life, polyurethane thermal break separating interior and exterior aluminum.
g.
Utilize continuous UL Listed PVC long life "thermal barrier break" insulating interior and exterior aluminum.
5.
Frame cap:
a.
Architectural grade extruded aluminum, minimum 0.050 inch thick.
b.
Frame cap squared and flat prior to full held-arc welding.
6.
Sealing gasket: Custom formed, UL Listed, 25 year, engineered thermoplastic.
7.
Finish:
 
** NOTE TO SPECIFIER ** Select the frame finish required and delete those not required.
 
a.
Bronze anodized
b.
Clear anodized
c.
Fluoropolymer coated, color as selected from the manufacturers standard colors.
d.
Mill finish
e.
White painted.
 
** NOTE TO SPECIFIER ** Include the following paragraph for self flashing skylights with a curb seal tape.
 
8.
Curb seal tape: 1-1/2 inch wide Ethylene Propylene Diene Monomer tape.
 
** NOTE TO SPECIFIER ** Include the following paragraph for safety screen.
 
9.
Safety screen: 0.156 inch diameter steel wires at 4 inches on center, welded at intersections, for installation between curb and skylight.
2.4
FABRlCATlON
A.
Skylights factory assembled and glazed, ready for installation.
B.
Fabricate skylights weather tight and free of visual distortions and defects.
C.
Protect exterior drip/counter flashing and drainage ports from weather and airborne debris.
D.
DMiter and full penetration weld corners of curb and retaining frames.
E.
Seal retaining frames securing glazing panels along each side under spring tension with silicone sealant along full perimeter of retaining frame.
F.
Pre-drill frames for anchorage to roof curbs.
G.
Seal glazing panels to base frame with allowance for expansion and contraction.
H.
Provide exterior weep hole arrangement in insure proper drainage.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
C.
Dissimilar material protection.
1.
Where aluminum will contact dissimilar metals, protect against galvanic action by painting contact surfaces with primer or by applying sealant or tape recommended by manufacturer for this purpose.
2.
Where aluminum will contact concrete or masonry, protect against corrosion by painting contact surfaces with bituminous paint.
3.
Where aluminum will contact pressure-treated wood, separate dissimilar materials by methods recommended by manufacturer.
3.3
INSTALLATION
A.
Install in accordance with manufacturer's instructions.
B.
Coordinate with installation of roof deck and other substrates to receive skylight units
C.
Provide thermal isolation when components penetrate or disrupt building insulation. Pack fibrous insulation in rough opening to maintain continuity of thermal barriers.
D.
Coordinate with installation of vapor barriers, roof insulation, roofing, and flashing as required to assure that each element of the work performs properly and that combined elements are waterproof and weathertight.
E.
Align skylights level, free of warp or twist, maintain dimensional tolerances.
F.
Anchor units securely to supporting substrates, adequate to withstand lateral and thermal stresses as well as inward and outward loading pressures.
G.
Counter Flashing: Where counter flashing is required as component of the skylight, install to provide an adequate waterproof overlap with roofing or roof flashing. Seal with thick bead of mastic sealant, except where overlap is indicated to be left open for ventilation.
 
** NOTE TO SPECIFIER ** Include the following paragraph for residential skylights and delete if not required.
 
H.
Install manufacturer's engineered perimeter flashing in accordance with manufacturer's installation instructions to achieve weather tight installation.
3.4
CLEANING AND PROTECTION
A.
Protect installed products until completion of project.
B.
Remove labels and protective material from surfaces.
C.
Clean exposed metal and plastic surfaces according to manufacturer's instructions. Touch up damaged metal coatings.
D.
Clean and polish plastic skylight units, inside and out prior to date of Substantial Completion.
3.5
SCHEDULES
 
** NOTE TO SPECIFIER ** Retain Paragraph below if required to suit project requirements. Identify products by name on the Drawings or use this paragraph to define the location of each type of material to be used. The following are some examples of schedule references. Edit as required to suit project or delete and identify products on the Drawings.
 
A.
:
B.
:
END OF SECTION