Materials:(G&G) Knudson KR-21 VP Varipan
Materials:(G&G) Knudson KR-21 VP Varipan
| The metal panel listed and described below is accepted for use in the RoofStar Guarantee Program. |
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
- 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")
- Range of application: Installed on wood or steel sloped roofs, in commercial, institutional, industrial and residential construction. For re-roofing or new construction.
- Panel Attachment: Fastening is site specific, engineer must confirm fixing specifications.
- Fasteners (Screws): Fasteners used to attach panel clips to plywood to be No. 10-12 by 25 mm (1") long pancake head, No. 2 Phillips drive, A-point, coated steel screw. Minimum two fasteners per clip to be used.
- Panel Clips: One piece assembly 43.75 mm (1-3/4") wide, 31 mm (1-1/4") high. Minimum thickness 0.022 in. (No. 22 MSG). Clips spaced maximum 900 mm (36") O.C., fastened to plywood deck.
PROFILE
N/A
TECHNICAL DATA SHEET
N/A
SITE CONDITIONS
Minimum roof slope is 1:4 (3" in 12"). Severe conditions (heavy snow or ice) minimum slope is 1:1.5 (8" in 12").
PERFORMANCE REQUIREMENTS
- 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.
- Materials:RoofStar (RGC) accepted metal panel systems shall be formed of steel conforming to the standards published in the Architectural Sheet Metal (ASM) Roof Standards.