Difference between revisions of "Materials:(G&G) Knudson KR-21 VP Varipan"

Revision as of 21:43, 13 February 2019

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

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 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.

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.

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.

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.

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 ::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.
-#'''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.
+#'''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.
 ====PROFILE====