Industry Standards for Robust Installation of Emerging Window/Wall Systems California Energy Commission April 28, 2016

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1 Industry Standards for Robust Installation of Emerging Window/Wall Systems California Energy Commission April 28, 2016 James D Katsaros, PhD Research Fellow DuPont Building Envelope Technology

2 FMA/AAMA/WDMA Installation Committee ACKNOWLEDGEMENT FMA/AAMA/WDMA Coordination Steering Team FMA: Jim Katsaros (FMA Chair) & Jim Krahn AAMA: Kelly Broker (AAMA Chair) & Joe Hayden WDMA: Steve Strawn & Steve Johnson Document Management & Publication: Rich Rinka (AAMA), Becky Buice (FMA) Document Illustrations: Owen Wittenberg (URS Corporation) Organizational Leadership: Dick Wilhelm (FMA), Rich Walker (AAMA), Jeff Lowinski (WDMA) 4/26/2016 2

3 Review Topics Were we ve been: Review FMA/AAMA/WDMA Installation Committee origins, process and the Extreme Exposure Standard Practice Protocols Where we are: The FMA/AAMA/WDMA Foam Plastic Insulated Sheathing (FPIS) Standard Practice Where we are going: Replacement Window Installation

4 FMA/AAMA/WDMA Installation Committee Formed by FMA in 2005 (after extreme 2004 Hurricane season) to address fenestration water intrusion concerns with residential construction in the southeast region. AAMA and WDMA joined shortly after Developing robust, easy to follow (something that could be given to an installer), illustrated installation standards for specific window/door/wall system combinations Standard practices developed by industry experts from Window Manufacturers, Flashing / Sealant Manufactures, Installers, Building Officials, and Building Science Consultants Initial series focused on Southeastern US Wall System & Extreme Exposure conditions

5 FMA/AAMA/WDMA Installation Committee Representative installation methods from all documents are installed and tested by members of the committee resulting in key learning's that impact the content of the standard practice For all extreme exposure guidelines, representative installations are wall tested per ASTM E331 or E547 to 12 PSF (575 Pa) water pressure; tested to 7.25 PSF for FPIS document Criteria for Success: 1. Installation Feasibility practical application 2. Water Intrusion Management in areas related to installation method

6 Who is Responsible for Window & Door Installation? 2015 IRC Code for Flashing R609.1 General. This section prescribes performance and construction requirements for exterior windows and doors installed in walls. Windows and doors shall be installed and flashed in accordance with the fenestration manufacturer s written instructions. Window and door openings shall be flashed in accordance with Section R Written installation instructions shall be provided by the fenestration manufacturer for each window or door.

7 Who is Responsible for Window & Door Installation? 2015 IRC Code for Flashing R703.4 Flashing. Approved corrosion-resistant flashing shall be applied shingle-fashion in a manner to prevent entry of water into the wall cavity or penetration of water to the building structural framing components. Self-adhered membranes used as flashing shall comply with AAMA 711. Fluid-applied membranes used as flashing in exterior walls shall comply with AAMA 714. The flashing shall extend to the surface of the exterior wall finish. Approved corrosion-resistant flashings shall be installed at the following locations: 1. Exterior window and door openings. Flashing at exterior window and door openings shall extend to the surface of the exterior wall finish or to the water-resistive barrier complying with Section for subsequent drainage. Mechanically attached flexible flashings shall comply with AAMA 712. Flashing at exterior window and door openings shall be installed in accordance with one or more of the following: 1.1. The fenestration manufacturer s installation and flashing instructions, or for applications not addressed in the fenestration manufacturer s instructions, in accordance with the flashing manufacturer s instructions. Where flashing instructions or details are not provided, pan flashing shall be installed at the sill of exterior window and door openings. Pan flashing shall be sealed or sloped in such a manner as to direct water to the surface of the exterior wall finish or to the water resistive barrier for subsequent drainage. Openings using pan flashing shall incorporate flashing or protection at the head and sides In accordance with the flashing design or method of a registered design professional In accordance with other approved methods. Why develop Installation Standard Practices?

8 FMA/AAMA/WDMA Installation Committee Developing robust, easy to follow (something that could be given to an installer), illustrated installation standards for specific window/door/wall system combinations Initial series focused on Southeastern US Wall System & Extreme Exposure conditions & emerging wall systems (6 Documents Published) Standard practices developed by industry experts from Window Manufacturers, Flashing / Sealant Manufactures, Installers, Building Officials, and Building Science Consultants

9 FMA/AAMA/WDMA Installation Standards Document Fenestration Wall System FMA/AAMA Windows: Flanged or Mounting Fins (Wood, Al, or Vinyl) Wood Frame FMA/AAMA Windows: Frontal Flanged (Aluminum and Vinyl) Surface Barrier CMU FMA / WDMA FMA / AAMA / WDMA FMA / AAMA / WDMA FMA / AAMA / WDMA (expected to publish in April) Windows: Non-frontal flanged (Wood) Exterior Doors with mounting fins, brick mold, and box frame Exterior Doors with mounting fins, brick mold, and box frame Windows: Flanged or Mounting Fins (Wood, Al, or Vinyl) Surface Barrier CMU Wood Frame Surface Barrier CMU Wood frame with Foam Plastic Insulating Sheathing

10 FMA / AAMA Isolate the Rough Opening Method 4/26/

11 New Focus Area Energy Management Proper Integration of Foam Plastic Insulating Sheathing (FPIS) / Window / Building Envelope Because of changes to the Energy Code, FMA/AAMA/WDMA Installation Committee Asked to develop a standard to address integration of Windows with Exterior Foam Plastic Insulating Sheathing

12 FMA / AAMA / WDMA FPIS-Window Integration Integration of Windows and Doors with Foam Plastic Insulating Sheathing (FPIS) Key Application Concerns: Support the Window Attachment Maintaining Water Management Principles (integration with Building Envelope / WRB) Finishing Details with the Façade / Siding

13 FMA/AAMA/WDMA (FPIS) Methods Installed and Tested Six Representative Methods to: 1. Investigate the practicality of each method 2. Water intrusion management in areas related to installation method up to 7.25 PSF (335 Pa) per ASTM E547 4/26/ E. I. DuPont de Nemours and Company All rights reserved.

14 FMA/AAMA/WDMA (FPIS) Methods FPIS Method A FPIS Method B E. I. DuPont de Nemours and Company All rights reserved. 14

15 FMA/AAMA/WDMA (FPIS) Methods Methods A and B feature a Rough Opening Extension Support Element (ROESE) ROUGH OPENING EXTENSION SUPPORT ELEMENT (ROESE), n. A projection ( bump-out ) or extension to the structural wall framing at the rough opening perimeter. The function of the ROESE is to support the weight of the window, allow direct structural attachment of the window to transfer wind loads to the structure, and enable window alignment with the exterior plane of the FPIS for proper integration with cladding and/or WRB. It shall consist of a material and fastening method capable of maintaining structural continuity between framing and the window. AAMA Task Group formed to survey/define performance requirements Proposed partnership with HIRL / DOE effort E. I. DuPont de Nemours and Company All rights reserved. 15

16 FMA/AAMA/WDMA (FPIS) Methods FPIS Method C1: Window protrudes at least ¾ past FPIS FPIS Method C2: Window does not protrude at least ¾ past FPIS Requires special integration feature E. I. DuPont de Nemours and Company All rights reserved. 16

17 FMA/AAMA/WDMA (FPIS) Methods FPIS Method A FPIS Method B Advantages Window in line with exterior plane for façade / siding integration, Window in plane with WRB Window in line with exterior plane for façade / siding integration, WRB behind FPIS for water management Concerns Potential for moisture trapped behind FPIS without WRB on sheathing Complex flashing details with Window out of plane with WRB FPIS Method C1 & C2 E. I. DuPont de Nemours and Company All rights reserved. Water Management Performance per standard FMA/AAMA 100 method (WRB on sheathing in plane with window) Integration of Façade / Siding with potential for Window Recess to exterior plane 17

18 FMA/AAMA/WDMA Installation Committee.the next Horizon Replacement Windows

19 Thank You For the Opportunity! Any Questions? DuPont Internal Use Only