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EXPOSED
FASTENING SYSTEMS
Features and Benefits:
• Numerous UL 580 ratings are available, as well as UL 790, Class A for external fire, roof
assembly for UL 263 for internal fire and the UL 2218 Class 4 impact rating.
• PBR carries Florida approval, Dade county ratings and FM 4471 approval standard for Class 1
panel roofs.
Product Specifications
• Applications: Roof and Wall
• Coverage Widths: 36"
• Rib Spacing: 12” on center
• Rib Height: 1-1/4”
• Minimum Slope: ½:12
• Panel Attachment: Exposed
Fastening System
• Gauges: 26 (Standard); 29, 24, 22 (Optional)
• Finishes: Smooth (standard);
Embossed (optional)
• Coatings: Galvalume Plus®, Signature® 200,
Signature® 300
PBR
The PBR panel is commonly used for a wide variety of architectural, agricultural, commercial and industrial applications. PBR is a
structural panel and an exposed fastener panel that can be used for both roof and wall applications. The minimum roof slope for PBR is
½:12.
Descriptions and specifications contained herein were in effect at the time this publication was approved for printing. In a continuing effort to refine and improve products, MBCI reserves
the right to discontinue products at any time or change specifications and/or designs without incurring obligation. To ensure you have the latest information available, please inquire or visit
our website at www.mbci.com. Application details are for illustration purposes only and may not be appropriate for all environmental conditions, building designs or panel profiles. Projects
should be designed to conform to applicable building codes, regulations and accepted industry practices. If there is a conflict between this manual and project erection drawings, the erection
drawings will take precedence. MBCI’s insulated metal panel product line is manufactured by Metl-Span®.
EXPOSED FASTENING SYSTEMS
PBR
844-327-1748 | mbci.com | shop.mbci.com
CATEGORY CHARACTERISTIC TEST METHOD PURPOSE RESULT
ENVIRONMENTAL
Air leakage Through Roof
Panel Joints ASTM E1680
Determines the air leakage characteristics of
metal roof panels under specified air pressure
differences at ambient conditions
0.005 cfm/ft2 at 1.57 psf static pressure
0.006 cfm/ft 2 at 6.24 psf static pressure
Water Penetration Through
Roof Panel Joints ASTM E1646
Determines the resistance to water penetration
of metal roof panels under uniform static air
pressure difference
No uncontrolled water penetration through
the panel joints at a static pressure of 20.00
psf
Impact Resistance UL 2218 Determines Impact Resistance of prepared Roof
Covering Materials Class 4 Rating
FIRE RESISTANCE
Room Fire Performance UL 790 Standard for Standard Test Methods for Fire
Tests of Roof Coverings See Class A Fire Rating Data Sheet
Room Fire Performance UL 263 Standard for Fire Tests of Building Construction
and Materials
For use in Design Nos. P225, P227, P230, P237,
P265, P268, P508, P510, P512, P701, P711,
P720, P722, P726, P731, P734, P801, P815,
P819.
STRUCTURAL
Uplift Resistance AISI S100
Provides a standard procedure to evaluate or
confirm structural performance under uniform
static air pressure difference
See Section Properties and Allowable Load
Table Section
Gravity Loads AISI S100 North American Specification for the Design of
Cold-Formed Steel Structural Members
See Section Properties and Allowable Load
Table Section
ROOF LISTINGS
Roof Performance
- FM Global FM 4471 Sets performance standards for panel roofs
including uplift resistance See FM Engineering Tech Bulletin
Roof Performance
-Underwriters Laboratories UL 580
Determines the uplift resistance of roof assem-
blies consisting of the roof and roof coverings
materials
Class 90 Rating - Construction Number 30, 54,
79, 104, 112, 161, 167, 184,
and 542.
Roof Performance
- Miami-Dade County
TAS 125
TAS 201
TAS 100
FM 4471 App. G
The Product Control Approval System estab-
lishes a protocol to evaluate the standards of
products used in construction in Miami-Dade
County. Miami-Dade County, with its inclusion in
the High Velocity Hurricane Zone (HVHZ) has the
most stringent code requirements of the Florida
Building Code. Therefore, all products that com-
prise the structure’s building envelope — doors,
shutters, windows, prefabricated buildings
and truss plates — require the issuance of an
approval in order to be used for construction in
Miami-Dade County
See NOA # 12-0123.07
Roof Performance
- Florida Approval
ASTM E 1592
FM 4471
UL 790
Florida product approval is the approval of
products and systems, which comprise the
building envelope and structural frame, for
compliance with the structural requirements
of the Florida Building Code.
See FL# 11868.1
Roof Performance - Texas
Department of Insurance ASTM E 1592
TWIA provides windstorm and hail insurance
in areas exposed to hurricanes and currently
provides windstorm and hail coverage in the
following 14 “first tier” Texas coastal counties:
Aransas, Brazoria, Calhoun, Cameron, Cham-
bers, Galveston, Jefferson, Kenedy, Kleberg,
Matagorda, Nueces, Refugio, San Patricio and
Willacy.
See RC-358 and RC-393