Materials:(G&G) Knudson KR-21 VP Varipan

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Materials:(G&G) Knudson KR-21 VP Varipan

Revision as of 17:18, 24 June 2021 by James Klassen (talk | contribs) (SYSTEM DESCRIPTION)


The metal panel listed and described below is accepted for use in the RoofStar Guarantee Program.
Manufacturer
G&G Roofing Ltd.
Contact Address
See the current Membership list and contact information at www.rcabc.org
Product Group - Standing Seam Metal Roof System
Panel Machine
Knudson Varipan
Panel Name
Knudson KR-21 VP Varipan
Seam Type
Mechanical

The roofing assembly / material information published below and in the RCABC Roofing Practices Manual DOES NOT represent a complete set of the manufacturer's published data, nor does it represent a detailed specification. The preparation of a detailed specification is the responsibility of the design authority. For more information about this product or system, consult the manufacturer.

OVERVIEW

The Knudson KR-21 VP Varipan standing seam panel is formed with an on-site/in shop continuous metal roofing panel roll forming machine ( New Tech SS Multipro ). This machine produces a standing seam panel with a seam height of 38 mm (1 1/2") and profiles can vary from 305mm (12") wide up to 500 mm (20") wide.

On-site roll forming provides for the elimination of end laps with continuous panel forming capabilities in lengths up to 300'.

SYSTEM DESCRIPTION

  1. General: The Knudson KR-21 VP Varipan is standing seam concealed fastener roof panel. The maximum spacing of screws in the built in nailing strip is 635mm (24")
  2. Range of application: Installed on wood or steel sloped roofs, in commercial, institutional, industrial and residential construction. For re-roofing or new construction.
  3. Panel Attachment: Fastening is site specific, engineer must confirm fixing specifications.
  4. Fasteners (Screws):
    1. Fasteners used to attach panel clips to steel must be No. 10-16 by 25 mm (1") long self-drilling, self-tapping pancake head plates steel screws. Use two fasteners per panel clip, inserted into panel clip guide holes.
    2. Fasteners used to attach panel clips to plywood must be No. 10-16 by 25 mm (1") long pancake head plated steel screws for wood. Use two fasteners per clip, inserted into panel guide holes.
  5. Panel Clips: One piece assembly 38 mm (1-1/2") wide, 47 mm (1-5/8") high, manufactured by Knudson (or approved equal). Minimum thickness 0.022 in. (No. 22 MSG). Clips spaced maximum 600 mm (24") O.C.
  6. Deck Requirements: in keeping with the Standard for Architectural Sheet Metal (ASM) Systems.

PROFILE

N/A

TECHNICAL DATA SHEET

N/A

SITE CONDITIONS

Minimum roof slope is 1:6 (2" in 12"). Severe conditions (heavy snow or ice) minimum slope is 1:1.5 (8" in 12").

PERFORMANCE REQUIREMENTS

  1. Wind Uplift Standards: Engineered designs to resist wind uplift may refer to the British Columbia Building Code, Div. B, Appendix C, Table C-2 which lists various types of loads, including wind loads, for specific reference locations throughout the province. See also Guides and Notes (Wind Resistance) for a simplified calculation procedure. Regardless of the resources indicated here, the Design Authority is responsible to perform accurate wind load calculations and specify securement requirements.
  2. Materials:RoofStar (RGC) accepted metal panel systems shall be formed of steel conforming to the standards published in the Standard for Architectural Sheet Metal (ASM) Systems.


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