View source for Materials:(Tomtar) Knudson KR-12

__NOTOC__
__NONUMBEREDHEADINGS__
{{DISPLAYTITLE:<span style="position: absolute; clip: rect(1px 1px 1px 1px); clip: rect(1px, 1px, 1px, 1px);">{{FULLPAGENAME}}</span>}}

<big><big>Division C - Accepted Materials</big></big>
<hr>
<big><big><big><big><big>Knudson KR-12</big></big></big></big></big><br>
<big><big><big>by TRS Building Envelope (Tomtar Roofing and Sheet Metal Ltd.)</big></big></big><br>
{| class="wikitable"
|-
| style="background-color: #ffffcc; column-width:100%" | The metal panel listed and described below is accepted for use in the '''''RoofStar Guarantee Program'''''.
|}
{| class="wikitable"
|-
| 
;'''Manufacturer''': Tomtar Roofing & Sheet Metal Ltd.
;'''Contact Address''': See the current Membership list and contact information at [http://www.rcabc.org/members/find-a-member/ www.rcabc.org]
;'''Product Group - Standing Seam Metal Roof System'''
;'''Panel Machine''': Knudson KR-12
;'''Panel Name''': Tomtar (Knudson) KR-12 Standing Seam panel
;'''Seam Type''': Standing Seam (38 mm (1-1/2"))

The roofing assembly / material information published below and in the [http://{{SERVERNAME}}/index.php?title=Main_Page 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-12 is an on-site continuous panel metal roofing machine. Panel profiles vary from 300 mm (12") to 500 mm (20") wide with a seam height of 38 mm (1.5"). 

On-site roll forming provides for the elimination of end laps with continuous panel forming capabilities in lengths up to nominal 46 m (150').

====SYSTEM DESCRIPTION====
#'''General''':  Standing seam panels employ a hidden fastening system for securement to a solid substrate. Panels are seamed together with a mechanical seamer.  
#'''Range of application''': on wood or metal sloped roofs; in commercial, institutional, industrial and residential construction; for re-roofing or new construction. 
#'''Fasteners (Screws)''': 
##For panel clip to steel attachment to be No. 12-16 by 22 mm (1") long self- drilling, self-tapping, hex-washer head plated steel screws used without sealing washers. Two fasteners per panel clip used, inserted into panel clip guide holes. 
#'''Clips''':
##Two part assembly consisting of a No. 16 MSG min thick coated steel base approximately 47.6 mm (1-7/8") wide and 40.9 mm (1-5/8") long and a No. 22 MSG min thick coated steel upper tab section. Fastened 600 mm (24") on centre. Height 61 mm (2-7/16") min, 75 mm (3") max, width 108 mm (4-5/16"); ''Knudson Manufacturing Inc.'' '''KR-24 Low-Floating Clip''', '''KR-24 High-Floating Clip''', or</b>
##One part assembly, No. 22 MSG min coated steel. Height, 59 mm (2-3/8") min, 75 mm (3") max, width 75 mm (3"); ''Knudson Manufacturing Inc.'' '''KR-24 Low-Fixed Clip''', '''KR-24 High-Fixed Clip''', fastened 600 mm (24") on centre.
#'''Deck Requirements''': in keeping with the [http://rpm.rcabc.org/index.php?title=Standard_for_Architectural_Sheet_Metal_(ASM)_Systems 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====
<ol>
<li>'''Wind Uplift Resistance''': Panel securement shall conform to the requirements in [https://rpm.rcabc.org/index.php?title=ASM_Roof_Systems_Standard#PART_3 Part 3] of the [http://rpm.rcabc.org/index.php?title=Standard_for_Architectural_Sheet_Metal_(ASM)_Systems Standard for Architectural Sheet Metal (ASM) Systems].
<li>'''Materials''':RoofStar (RGC) accepted metal panel systems shall be formed of steel conforming to the requirements published in [https://rpm.rcabc.org/index.php?title=ASM_Roof_Systems_Standard#Section_9.2._Materials Section 9.2.] of the Standard.
</li></ol>

<hr>


[[Architectural Metal Roofing|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''Site-Formed Metal Roofing Systems'']]

[[Materials by Product Type|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''Accepted Materials'']]


[[Main Page|Home]]