Skylight Specifications – Section 08600, metal-framed skylights

1.1 System Description

A. Design Requirements

1. Extended Aluminum members with attachment of exterior glass retainers with 1/4-in. x 20 stainless steel screws and snap-on beauty caps.
2. Condensation guttering system integral with skylight framing members for positive drainage of condensation.
3. Flush glazed exterior horizontal joints with field applied structural silicone.

B. Performance Requirements

1. Structural Members: Of sufficient sizes to support design loads as prescribed by governing building codes.
2. The deflection of the framing member in a direction normal to the plane of glass when subjected to a uniform load deflection test in accordance with ASTM E330, and per the above specified loads, shall not exceed L/175, up to 1-in. maximum, for clear spans under 20-ft., or L/240 for clear spans greater than 20-ft.
3. The deflection of the framing member in a direction parallel to the plane of glass, when carrying its full dead load, shall not exceed an amount which will reduce the glass or panel bite below 75% of the design dimension and the member shall have a 1/8-in. min. clearance between itself and the edge of the fixed panel, glass, or component immediately adjacent, nor shall it impair the function of or damage any joint seals.
4. Water Penetration: No water penetration shall occur when the system is tested in accordance with ASTM E331 using a differential static pressure of (20% of the inward acting design wind load pressure, but not less than (12psf). Water penetration is defined as the appearance of uncontrolled water other than condensation on the interior surface of any part of the skylight.
   1. Drain water penetrating at joints, as well as condensation occurring within the system, to exterior face of the work.
5. Thermal Movement: Provide for such expansion and contraction of component materials as will be caused by regional surface temperatures without causing buckling, stress on glass, failure of seals, undue stress on structural elements, reductions of performance or other detrimental effects.
6. Where permitted by code, a 1/3 increase in allowable stress for wind seismic load shall be acceptable, but not in combination with any reduction applied to combined loads. In no case shall allowable values exceed the yield stress.
7. Compression flanges of flexural members may be assumed to receive effective lateral bracing only from anchors to the building structure and horizontal glazing bars or interior trim which are in contact with 50% of the member’s total depth.
8. The skylight framing is designed to be self-supporting between the support construction. The skylights will impose reactions to the support construction. All adjacent and support construction must support the transfer of all loads, including horizontal and vertical, exerted by the skylights. Design or structural engineering services for the supporting structure or building components not included in the skylight’s scope are not included under this section.
9. Optional limited reaction design: The skylight framing is to be designed to exert no horizontal reactions under vertical gravity type loads, (dead, snow, live). Unbalanced live loads, (wind, seismic, etc.) acting upon the skylight will produce horizontal reactions that cannot be controlled by the skylights but must be resisted by the support structure.

1.2 Quality Assurance

1. Work of this section, including design, engineering, fabrication, finishing, preparation at the job site, erection and glazing of the skylight manufacturer. The manufacturer shall be regularly engaged in the preceding phases of construction of skylights and able to demonstrate that he has performed successfully on comparably sized projects and of comparable design complexity over at least the previous ten years.
2. Royalite Mfg. Inc. has over twelve years of experience in the design, engineering, manufacturing and installation of skylights. Our skylight systems have been subjected to rigorous testing during the course of development and have been applied in thousands of practical applications.

1.3 Warranty

1. Submit manufacturer’s warranty certifying that skylight work was furnished and installed in accordance with the Contract Documents.
2. Certify that skylight frame is free of defects in design, material, and construction for a period of five (5) years from the Date of Skylight Completion.
3. Warrant glass against defective materials, delamination, seal failure, and defects in manufacture per the glass manufacturer’s standard warranties. Glass breakage is not warranted.
4. Warrant structural sealant for a period of 5 years per sealant manufacturer’s standard warranty of merchantable quality. Warranty shall certify that cured sealant:
   1. Will not become brittle or crack due to weathering or normal expansion and contradiction of adjacent surfaces.
   2. Will not harden beyond a Shore A durometer of 50, nor soften below min. of 10 points.
   3. Will not change color significantly when used with compatible back-up materials.
   4. Will not bleed significantly.
5. Warranty service becomes effective only following payment in full for the contract amount.

• Acrylic Dome




• Glass

All glass surfaces on Royalite skylights should be cleaned and maintained in accordance with the recommendations of the major glass manufacturers supplying the product. Royalite skylights are generally glazed with glass provided by local fabricators of glass manufactured by PPG, Pilkington, AFG or Visteon. These are major domestic glass manufacturers with extensive published and web-site information with regard to the care, cleaning and maintenance of their products.

Proper Cleaning of Glass:
Glass should be cleaned with a soft, clean, grit-free cloth and a mild, non-abrasive, non-alkaline cleaning solution. The glass should be rinsed immediately with clean rinse water, excess rinse water should be removed promptly with a squeegee.

Proper Cleaning of Acrylic or Polycarbonate materials:
All materials should be cleaned with mild soap or detergent and lukewarm water using only a clean sponge or soft cloth, then rinsed with clean water. For the removal of fresh paint, grease or glazing compounds consult the instructions of the plastic manufacturer.

Proper Cleaning of Painted Frame:
Royalite aluminum frame is painted with Highs Solids Aliphatic two component polyurethane coating. In a manner similar to glass the painted surface should be cleaned with a soft, clean, grit-free cloth and a mild, non-abrasive, non-alkaline cleaning solution and be rinsed with clean rinse water.

Do not use any acid-based cleaners, solvent based or harsh abrasives on any glass, acrylic or painted surfaces because they will permanently damage the surface.

ALUMINUM LADDERS

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Vertical ladders.

B. Ship’s ladders.

C. Utility line bridges.

1.2 SUBMITTALS

A. Submit under provisions of Section 01300.

B. Product Data: Manufacturer’s data sheets indicating materials of construction.

C. Shop Drawings: Drawings prepared for this project, showing relationship of ladders to other construction and methods of anchorage.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturer: Royalite Manufacturing, Inc; 1055 Terminal Way, San Carlos, CA 94070. ASD. Tel: (650) 637-1440 or (800) 875-9548. Fax: (650) 637-9770. www.royalite-mfg.com.

B. Substitutions: Not permitted.

C. Requests for substitutions will be considered in accordance with provisions of Section 01600.

2.2 COMPONENTS

A. Ladders: Provide assembled ladders that comply with OSHA and local building codes, with all edges rounded, clean, smooth, and burr free; dimensions as indicated on drawings.

B. Ladder Treads: Extruded aluminum, 6063-T5 alloy, with self-cleaning serrated top surface and rounded front and back edges; fastened to handrails with concealed stainless steel screws; capable of withstanding 1200 pounds (3179 kg) load per tread without damage.
1. Cross Section for Vertical Ladders: Minimum 2 inches (50.8 mm) horizontal, nominal 1 inch (25 mm) vertical.
2. Cross Section for Ship’s Ladders: Minimum 4 inches (101 mm) horizontal, nominal 1 inch (25 mm) vertical.
3. Width: 24 inches (610 mm).
4. Width: 18 inches (457 mm).
5. Spacing: 12 inches (305 mm) vertically.
6. Landings: Made up of tread members mounted side-by-side.

C. Vertical Ladder Rails Supporting Treads: Extruded aluminum, 6063-T5 alloy, with rounded corners, approximately 4 inches (100 mm) deep; mounted so that centerline of tread is minimum of 7 inches (178 mm) from face of wall.
1. Wall Brackets: Bent aluminum plate, 2 inches (50 mm) wide by 3/16 inch (5 mm) thick.
2. Base Brackets: Aluminum angle floor bracket, 2 by 2 by 2 by 1/8 inch (50 by 50 by 50 by 3 mm).
3. Base Brackets: Wall bracket with additional angle brace; supporting foot of rail at least 4 inches (100 mm) above floor or grade.

D. Ship’s Ladder Rails Supporting Treads: Extruded aluminum channel stringers, 6 by 2 by 1/8 inch (150 by 50 by 3 mm).
1. Base Brackets: Aluminum angle floor bracket, 2 by 2 by 2 by 1/8 inch (50 by 50 by 50 by 3 mm).

E. Ship’s Ladder Handrails: Extruded aluminum pipe, 1-1/2 inches (38 mm) outside diameter, Schedule 40 wall thickness; formed with radiused elbows, welded to stringers.

F. Extended Rails: 0.875 inch (22 mm) diameter aluminum tubing; formed with two parallel tubes for each length of rail, with radiused corners, assembled by welding or with stainless steel fasteners.
1. Lift-Up Rail Extensions for Hatch Ladders: 6063-T5 aluminum, .77 inch (19.56) x 3.646 inches (92.608 mm) extrusion inside the standard side rails, manually raised, lowered by means of releasing gravity latches; and extending a minimum of 42 inches (1067 mm) above top ladder tread.
2. At Top of Ladders Leading to Roofs or Landings: Extending minimum of 42 inches (1067 mm) vertically above top of parapet or landing and extending minimum of 10 inches (254 mm) past edge of roof or landing; with free walk-through onto roof/landing.

G. Cages: Hoops and verticals of aluminum, 2 inches (50.8 mm) wide by 0.187 inch (4.75 mm) thick; assembled with stainless steel fasteners.
1. Bottom Hoop: 18 inch (457 mm) radius with overall extension from wall of 40-3/4 inches (1035 mm).
2. Intermediate and Top Hoops: 14 inch (355 mm) radius.
3. Rest Platforms: Ladder tread landing, 24 by 36 inches (610 by 915 mm), with 1-1/2 inch (38 mm) outside diameter aluminum pipe railing enclosing both runs of ladder.

H. Utility Line Bridges: 6063-T5 extruded aluminum supports, ladder tread landing, and 1/4 inch (6 mm) thick aluminum checker plate base plates; all joints mitered and welded; for loose placement on roof surface.

I. Security Door for Vertical Ladder Without Cage: Sheet aluminum enclosure from 6 inches (150 mm) to 102 inches (2590 mm) above floor or grade; hinged for access to ladder with full height stainless steel piano hinge; secured with adjustable staple and plate for padlock.

J. Security Door for Cage Ladder: Aluminum grid door of same construction as cage, mounted on bottom of cage, hinged down, with adjustable staple plate and hasp for padlock.

K. Fall Arrestor: North Safety Products “Saf-T-Climb” System.
1. Installed by ladder manufacturer.
2. Rails: Stainless steel, Type 304 or Type 316L.
3. Rails: Extruded aluminum.
4. Rails: Fiberglass reinforced plastic.

L. Anchor Bolts: Hot-dipped galvanized or stainless steel bolts; diameter as specified by ladder manufacturer; length as required to provide adequate anchorage into substrate.

PART 3 EXECUTION

3.1 INSTALLATION

A. Install in accordance with manufacturer’s instructions.

B. Anchor securely using fasteners specified by manufacturer or others of equivalent or greater strength and corrosion resistance.

“The Royalite Single Lite Skylight” has a Lifetime Waterproof Warranty to the original owner and is guaranteed not to leak. Curb construction, roofing and flashing are the responsibility of the installer. The Insulated Glass Seal Warranty is for ten years from date of purchase to the original owner.

• Submit manufacturer’s warranty certifying that skylight work was furnished and installed in accordance with the Contract Documents.
• Certify that skylight frame is free of defects in design, material, and construction for a period of five (5) years from the Date of Skylight Completion.
• Warrant glass against defective materials, delamination, seal failure, and defects in manufacture per the glass manufacturer’s standard warranties. Glass breakage is not warranted.
• Warrant structural sealant for a period of 5 years per sealant manufacturer’s standard warranty of merchantable quality. Warranty shall certify that cured sealant:
  1. Will not become brittle or crack due to weathering or normal expansion and contradiction of adjacent surfaces.
  2. Will not harden beyond a Shore A durometer of 50, nor soften below min. of 10 points.
  3. Will not change color significantly when used with compatible back-up materials.
  4. Will not bleed significantly.
• Warranty service becomes effective only following payment in full for the contract amount.

Royalite Manufacturing warrants all ladders F.O.B. our factory for a period of ten (10) years to be free from defects in material and workmanship. Royalite Manufacturing’s sole obligation is expressly limited to the repair or replacement of parts of any ladder confirmed to be defective by Royalite Manufacturing.  This warranty does not include any costs incurred for field inspection, removal, packaging, transportation, reinstallation or any other services or costs.  These warranties do not apply to any ladder which has been altered, misused, abused or damaged by any other thing, person, cause or Act of God.  This is the only warranty or guarantee, limited to the original purchaser, nontransferable regarding merchantability of Royalite products and shall not exceed the original purchase price of the defective product.

Royalite Manufacturing Inc. shall not be liable for other losses or damages, special or consequential.