Technical issue update February 1, 2017 1 2017 Mid-winter Roofing Expo Carolinas Roofing & Sheet Metal Contractors Association, Inc. NRCA technical update presented by 2017 RCMA Annual Meeting Las Vegas, Nevada February 28, 2017 Mark S. Graham Vice President, Technical Services National Roofing Contractors Association Topics • Publications • NRCA issues • Questions
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NRCA technical update - Roof Coatings · Technical issue update February 1, 2017 3 2017 Mid-winter Roofing Expo Carolinas Roofing & Sheet Metal Contractors Association, Inc. The NRCA
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Technical issue update February 1, 2017
1
2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
NRCA technical update
presented by
2017 RCMA Annual MeetingLas Vegas, Nevada
February 28, 2017
Mark S. GrahamVice President, Technical Services
National Roofing Contractors Association
Topics
• Publications
• NRCA issues
• Questions
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
NRCA publications
NRCA Guidelines for
Roof Coatings
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
The NRCA Roofing Manual:
Steep-slope Roof Systems-2017
The NRCA Roofing Manual - 2017
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
The NRCA Roofing Manual: Membrane Roof Systems-2015 July 2016 Update
Manual onlinewww.nrca.net
• Available to all NRCA
member registered users
(multiple users per
member company)
• “Members only” section,
click on “My account”,
the “Electronic file”
• View, download and print
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
NRCA App
• NRCA App available on the
Apple Store and Google Play
Store for tablets
• iPhone App also available
• Register within App as being
an NRCA member
• The NRCA Roofing Manual is
viewable to NRCA members
• Favorite and send pages
features
Others’ publications…
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
International Building Code, 2015 Edition
International Existing Building Code,
2015 Edition
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Roof coating service life
How long will a roof coating continue to provide a fire classification?
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Roof coating-related ASTM standards
• ASTM D6847-Urethane (D08.06)
• ASTM D1227-Emulsion (D08.09)
• ASTM D4479-Asphalt (D08.05)
• ASTM D6694-Silicone (D08.06)
• ASTM D2824-Aluminum (D08.05)
• ASTM D3468-Neoprene/CSPE (D08.18)
• ASTM D6083-Acrylic (D08.18)
Give consideration to asking ASTM to establish a
roof coatings subcommittee within Committee D08…
and move these standards into that subcommittee.
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Issues
Moisture in concrete roof decks
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
NRCA Industry Issue Update, August 2013
An interim report of NRCA’s latest
concrete/moisture research will be provided at
the TOC: Programs and Issues educational
session (TH10) on Thursday at 9:30 a.m.
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Professional Roofing
March 2017www.ProfessionalRoofing.net
Polyisocyanurate insulationKnit line, thickness and dimensional stability concerns
Technical issue update February 1, 2017
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Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Professional Roofing,
February 2016www.ProfessionalRoofing.net
Knit lines
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Knit lines -- continued
Photo from manufacturer’s product literature
Technical issue update February 1, 2017
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Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Thickness and knit lines
As delivered by manufacturer.
Knit lines -- continued
After conditioning: 158 ± 4 F and 97 ± 3% RH for 7 days
Technical issue update February 1, 2017
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2017 Mid-winter Roofing Expo
Carolinas Roofing & Sheet Metal Contractors Association, Inc.
Knit lines -- continued
Knit line and V-groove close-up (after conditioning)