FMA Installation Committee

Transcription

1 FMA/AAMA/WDMA Installation Development FMA Technical Summit 9/28/10 James D. Katsaros, PhD FMA Installation Committee Chairman FMA Installation Committee Original Mission (2005): to develop enhanced installation methods for adoption into Florida Building Code AAMA & WDMA Joined Effort Full Industry Representation Objective has expanded to include training / education to SE regional specific installation considerations Developing several window / wall system regionally specific installation guidelines - Eventual adoption into ASTM E2112 Unique installation considerations: 1) extreme / coastal exposure and 2) surface barrier CMU construction 1

2 Unique Installation Considerations Installation Testing All FMA Installation Standards include testing of representative mockup installations Testing has been conducted at ATI (York & Tampa) and the Univeristy of Florida Hurricane Research Center - Hurricane Simulator led by Dr Forrest Masters Test water intrusion path(s) under extreme wind/water exposure (hurricane force wind driven rain) Test various fenestration types and installation methodologies - includes wood frame and CMU walls 2

3 FMA Installation Standards Document Fenestration Wall System Status (more details to follow) FMA / AAMA Flanged or Mounting Fins (Wood, Al, or Vinyl) Wood Frame Minor edits completed based on AAMA / ASTM ballot & alignment with 200 series. Republish in 2010 FMA / AAMA Frontal Flanged (Aluminum and Vinyl) Surface Barrier CMU Published in 2009 FMA / WDMA Non-frontal flanged (Wood) Surface Barrier CMU Published in 2010 FMA / AAMA / WDMA 300 series Exterior Doors with mounting fins (300), brick mold (310) and box framed (320) Wood Frame Draft completed / testing at ATI Tampa March September, 2010 FMA / AAMA / WDMA 400 series Exterior Doors Surface Barrier CMU Will begin when 300 testing complete FMA / AAMA 100 Wood Frame Wall System FMA_AAMA Installation Guideline Published for Wood Framed Wall System (residential) under Extreme Exposure Conditions Details generic A1 (WRB before) flashing method based on both 4 self-adhered flashing and 9 mechanically attached flashing. Other sequences acceptable, but not detailed. Mandates drainage method / use of sill pan flashing (extreme exposure on water sensitive frame) Tested to 12 psf, (~70 mph winds) using the ASTM E331 or ASTM E547 water test, to simulate extreme exposure conditions. This pressure was selected based on the AAMA / WDMA / CSA 101/IS2/A criteria. FMA_AAMA 100 3

4 FMA / AAMA 200 FMA/WDMA 250 Coastal S/E Wall System: Direct applied Stucco onto CMU Wall FMA_AAMA FMA_WDMA FMA/AAMA 200 FMA/WDMA 250 Require sealant on Rough Opening return and precast sill. Seal on face (either external or internal) is optional recommended practice / not mandatory. Benefit: Protects rough opening without impacting exterior surface interface with Stucco. This is the design in FMA/AAMA & FMA/WDMA Figure taken from Lstiburek Design 4

5 AAMA Liquid Applied Flashing Material Performance Standard AAMA task group formed to define material property requirements task group meets at AAMA National meetings & interim conference calls Application as specified for use in FMA/AAMA 200 & FMA/WDMA 250 standard practices for sealing CMU surface This is NOT just a block sealant needs to bridge gaps, seal through fasteners, have abrasion resistance & durability, and be compatible to surface applied stucco FMA/AAMA/WDMA 300 Series 300 Flanged Doors 310 BrickMold Doors 320 Non-flanged / Box Frame Doors Wood Frame Construction Concrete (recessed or flat) or Wood Sill Nine specimens tested at ATI, 2Q10 4 passed ASTM E547 to 12 psf, 5 were repeated 3Q10 5

6 Key Flashing & Installation Codes & Standards KEY WINDOW / DOOR INSTALLATION STANDARDS: ASTM E2112 generic guidance for standard flanged windows, very comprehensive & hard to follow FMA/AAMA 100 extreme exposure for wood frame construction, mandates sill pan flashing, coastal region wall FMA/AAMA 200 & FMA/WDMA 250 surface barrier CMU systems, the Florida wall AAMA 2400 open stud construction, the southwest wall FMA/AAMA/WDMA 300/400 series door installations FLASHING CODES Regional Standards Developments May Effect National Codes More In Future. IRC R703.8 describes flashing principles (must be applied with correct shingling, drainage to WRB or exterior, install guidelines, reference to AAMA 711, etc) IRC R613.1 designates responsibility to window manufacturer to provide written flashing and installation instructions for each window FLASHING MATERIAL STANDARDS: AAMA Self-Adhered Flashing Products AAMA 712-XX Mechanically Attached Flashing (under development) AAMA 7XX-XX Liquid Applied Flashing 6

7 Challenges for Installation of Windows & Doors These highly variable fenestrations are installed a wide variety of climates, exposures and regional practices.that Desperately Need Regionally Specific Installation Details! High Wind / Rain Exposure Windows Before WRB Low E glazing / Insulated cavity Foam Sheathing AAMA 2400 Recessed Windows Open Stud Construction Vinyl Windows Wood Windows Extreme Temp Swings Extreme Storms Windows After WRB Brickmold Windows Concrete Slab Floors Surface Aluminum Windows Barrier CMU Walls Hurricane Exposure FMA / AAMA/ WDMA 7