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Title Author(s) Publish date
Update on Recent Activity by ASTM Roofing and Waterproofing Groups
Document: Western States Roofing Contractors Association, Pages: 1-114
03/2026
Laboratory Assessment of OSB & Plywood Performance Under Moisture Cycling Conditions
Document: Western States Roofing Contractors Association, Pages: 1-6
11/2025
Waterproofing for Irregular Penetrations and Perimeter Integration
Document: Western States Roofing Contractors Association, Pages: 1-11
11/2025
Silicone Coating over Single-Ply Roofs - Lab Study
Document: Western States Roofing Contractors Association, Pages: 1-14
11/2025
WSRCA-Concrete and Clay Roof Tile-Installation Manual for Moderate Climate Regions 2010
Document: WSRCA-Concrete and Clay Roof Tile-Installation Manual for Moderate Climate Regions 2010, Pages: 1-188
01/2010
WSRCA-Concrete and Clay Roof Tile-Installation Manual for Moderate Climate Regions 2006
Document: WSRCA-Concrete and Clay Roof Tile-Installation Manual for Moderate Climate Regions 2006, Pages: 1-94
01/2006
WSRCA TPO Roof Membrane Repair and Maintenance Guidelines-First Edition 2011
Document: WSRCA TPO Roof Membrane Repair and Maintenance Guidelines-First Edition 2011, Pages: 1-178
01/2011
WSRCA Roofing Details 2004
Document: WSRCA Roofing Details 2004, Pages: 1-260
01/2004
WSRCA Roofing Details 1988
Document: WSRCA Roofing Details 1988, Pages: 1-44
01/1988
Update on Recent Activity by ASTM Roofing and Waterproofing Groups
Document: Western States Roofing Contractors Association, Pages: 1-86
10/2025
Roofing Energy Code Requirements for Single Family Residences - New Construction
Document: Western States Roofing Contractors Association, Pages: 1-16
09/2025
Roofing Energy Code Requirements for Single Family Residences - Additions & Alterations
Document: Western States Roofing Contractors Association, Pages: 1-20
05/2025
Update on Recent Activity by ASTM Roofing and Waterproofing Groups
Document: Western States Roofing Contractors Association, Pages: 1-69
03/2025
Long-term TPO Exposure Performance Concerns
Document: Western States Roofing Contractors Association, Pages: 1-9
11/2024
Photovoltaic Support for Steep-Slope Roofs
Document: Western States Roofing Contractors Association, Pages: 1-7
12/2024
Photovoltaic Installations Over Low-Slope Roofs
Document: Western States Roofing Contractors Association, Pages: 1-6
12/2024
Design Considerations for Cool Roofs
Document: Western States Roofing Contractors Association, Pages: 1-4
10/2024
Update on Recent Activity by ASTM Roofing and Waterproofing Groups
Document: Western States Roofing Contractors Association, Pages: 1-84
09/2024
Rubber Flashing Collars - Durability of Rubber Gaskets
Document: Western States Roofing Contractors Association, Pages: 1-6
08/2024
Building Code Changes to Address Wildfire Concerns for Steep-Slope Roofing Assemblies
Document: Western States Roofing Contractors Association, Pages: 1-9
07/2024
Fluid-Applied Fabric- Reinforced Coating Adhesion Study - PMMA
Document: Western States Roofing Contractors Association, Pages: 1-6
03/2024
Update on Recent Activity by ASTM Roofing and Waterproofing Groups
Document: Western States Roofing Contractors Association, Pages: 1-38
10/2023
TPO ROOF RESEARCH & TESTING PROJECT 10th YEAR UPDATE REPORT
Document: Western States Roofing Contractors Association, Pages: 1-20
Chuck Chapman; KC Barnhardt; Christian Madsen; Jim Carlson,; Ana H. Delgado; Ralph M. Paroli; Randy Ober; Dwayne Wacenske; Michael Ludwig 06/2011
TPO Weathering Farm Project Seven Year
Document: Western States Roofing Contractors Association, Pages: 55-74
Chuck Chapman; Jim Carlson; Ana H. Delgado; Ralph M. Paroli; Randy Ober; Dwayne Wacenske; Steve Moskowitz; Michael Ludwig; Stephen Elliott 05/2010
TPO WEATHERING FARM PROJECT 1 year results
Document: Western States Roofing Contractors Association, Pages: 1-13
Tom Bradford; K.C. Barnhardt; Jim Carlson; Ana H. Delgado; Ralph M. Paroli; Ernie Rosenow; Randy Ober; Jim Jannasch; Steve Moskowitz; and Mike Hubbard 06/2005
Asphalt Shingle Overlays – Concerns & Application Considerations
Document: Western States Roofing Contractors Association, Pages: 1-6
09/2023
Podium and Terrace Deck Expansion & Seismic Joints
Document: Western States Roofing Contractors Association, Pages: 1-7
07/2023
Condensation Potential Within Wood-Framed Parapets
Document: Western States Roofing Contractors Association, Pages: 1-7
05/2023
Balcony and Exterior Elevated Walking Surface Code Changes
Document: Western States Roofing Contractors Association, Pages: 1-5
01/2023
Evaluating Concrete Decks in Preparation for Roofing or Waterproofing Application
Document: Western States Roofing Contractors Association, Pages: 1-8
12/2016
Condensation Potential & Damage Related to White & Light-Colored Roof Systems
Document: Western States Roofing Contractors Association, Pages: 1-11
05/2019
SBS Polymer-modified Asphalt Roofing Rolled-Goods
Document: Western States Roofing Contractors Association, Pages: 1-14
06/2019
Moisture in Concrete Decks
Document: Western States Roofing Contractors Association, Pages: 1-9
11/2020
Waterproofing Options for Mechanical Pads
Document: Western States Roofing Contractors Association, Pages: 1-8
12/2022
Why Not to Flood Test Low-Slope Roofs
Document: Western States Roofing Contractors Association, Pages: 1-4
12/2022
Venting in Steep-Slope Roofing
Document: Western States Roofing Contractors Association, Pages: 1-9
08/2022
Steep-Slope Roof Ventilation in Fire-Prone Areas
Document: WSRCA, Pages: 1-9
09/2022
Venting in Steep-Slope Roofing
Document: Western States Roofing Contractors Association, Pages: 1-10
07/2022
Under-Slab Dewatering
Document: Western States Roofing Contractors Association, Pages: 1-4
WSRCA 06/2022
High-Density Polyisocyanurate Cover Boards (and How They Compare to Gypsum-Based Cover Boards)
Document: Western States Roofing Contractors Association, Pages: 1-6
04/2022
Minimum Slope Requirements For Steep Slope Roof Products
Document: Western States Roofing Contractors Association, Pages: 1-3
12/2021
Technical Bulletin No. 2021-WCI: A Guide for Electronic Leak Detection Testing of Roofing Membranes
Document: Western States Roofing Contractors Association, Pages: 1-11
06/2021
A Guide for Maintenance Coating Low-Slope Roof Membranes
Document: WSRCA Technical Bulletin , Pages: 1-16
02/2021
Roof Wood Sheathing Susceptibility to Moisture
Document: WSRCA Technical Bulletin , Pages: 1-5
09/2020
WSRCA Informational & Alert Bulletin Regarding Changes in ASTM Waterproofing Standards may affect Member Contractors
Document: Western States Roofing, Pages: 1-6
05/2018
WSRA Underlayment Testing And Research Project
Document: , Pages: 1-20
Western States Roofing Contractors Association
Western States Roofing Contractors Association Seminar Handout
Document: Western States Roofing Contractors Association, Pages: 1-16
06/2014
WSRCA Principles of a successful below grade waterproofing project - 2007 ed
Document: , Pages: 45
WSRCA
Principles of a below grade waterproofing, 1st edition - 2007
Document: Below grade waterproofing, Pages: 45
WSRCA
Principles of a successful below grade waterproofing
Document: , Pages: 45
WSRCA
Membrane splitting
Document: Western Roofing, Pages: 94
Samuel Gale 05/1997
WSRCA Roofing Details
Document: Roofing details, Pages:
WSRCA
An update on Western States Roofing Contractors Association's TPO weathering farm Project
Document: TPO Weathering Farm Update, Pages: 13
Western States Roofing Contractors Assn 01/2006
Results of long term thermal resistance (LTTR) testing and R-value of current generation polyiso insulation
Document: WSRCA Tech bulletin 2004-1, Pages: 3
Western States Roofing Contractors Assn 10/2004
The asphalt fiberglass shingle study
Document: Asphalt shingle fiberglass shingle study, Pages: 14
Western States Roofing Contractors Assn 06/1992
HCFC update - PIMA encourages environmental responsibility with CFC phase out
Document: Western Roofing, Pages: 81-
Jared Blum 01/1994
Effects of operating conditions on asphalt softening points
Document: Western Roofing, Pages: 97
Richard Janicki 05/1994
Reroofing for fire season: what is
Document: Western Roofing, Pages: 22-23
Richard Olson 05/1999
A mortar set tile specification
Document: Bookk, Pages: 15
NTRMA (National Tile Roofing Manufacturers Association) 09/1989
Western States BUR and tile details
Document: Details, Pages:
Western States Roofing Contractors Assn WSRCA
Built up roofing specifications (Minimum standards)
Document: Built up specifications, Pages:
Western States Roofing Contractors Assn. (WSRCA) 06/1995
Roofing / Urethane Insulation Test
Document: , Pages: 92
WSRCA
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