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Wind-Borne Debris with Mahogany Windows & Doors
 

Wind-Borne Debris with Mahogany Windows & Doors

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Designing for wind-borne debris with mahogany windows and doors

Designing for wind-borne debris with mahogany windows and doors

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    Wind-Borne Debris with Mahogany Windows & Doors Wind-Borne Debris with Mahogany Windows & Doors Presentation Transcript

    • WELCOME 1
    • 2
    • 3
    • “Designing for Wind-Borne Debris with Mahogany Windows & Doors” Peetz Windows and Doors, continuing education program for architects. AIA Course Reference: PTZ101 This course qualifies for 1.0 LU AIA/CES credits Oct09 v1 4
    • Peetz Windows and Doors is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credits earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion for non- AIA members available on request. This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. 5
    • “Mahogany Windows & Doors for Wind-Borne Debris” Learning Objectives 1.  How a hurricane effects a building structure 2.  A basic understanding of wind-borne debris codes and standards 3.  Product approvals and design options for mahogany windows 4.  Design criteria and specifying mahogany windows and doors 6
    • Top Ten Most Destructive Hurricanes (Atlantic) Note: damages are listed in US Dollars and are not adjusted for inflation Source: www.mthhurricane.com 7
    • United States - Areas of Risk 8
    • Saffir-Simpson Hurricane Scale 9
    • The Dynamics of a Hurricane 10
    • Hurricane Market Drivers   Government Regulation (Building Codes)   Industry Initiatives (codes and standards)   Insurance Industry   Government Mitigation Programs   Hurricane season publicity   Increased Consumer Demand for Impact Windows over Shutters 11
    • Wind-Borne Debris Regions   Defined by American Society of Civil Engineers (ASCE) wind speed map - determines the highest risk areas based on historical data   States, counties, or municipalities can require specific codes and standards   Insurance entities can require specific requirement to obtain insurance 12
    • Codes & Standards for Wind-Borne Debris TDI 13
    • U.S Wind Speed Map 14
    • State (regional) Wind Speed Maps 15
    • Florida Wind Speed Map 16
    • 4.1 General Testing Requirements 1.  Approved test lab 2.  Engineering witness and review 3.  Three identical units must pass 4.  Test results, applications, and check submit to Dade County Product Control Division for Notice of Acceptance (NOA) 17
    • Product Testing Vinu Abraham   Cyclic Pressure Test (9000 cycles)   Missile Impact Test (large or small)   Three identical units   All glass types must be tested   All installation methods must be tested   All hardware types must be tested Note: non-glazed products (storm panels & shutters) only have to go through 1342 cycles, 5/8" plywood is accepted and does not have to go through missile or cyclical testing 18
    • 4.1 Product Requirements   Test specimens must be the same as installed products   System components must be identified   Installation methods must be completely described, provided and executed 19
    • Product Characteristics Windows and doors designed for Wind-borne debris regions will have the following characteristics:   High design loads   Impact resistant glass   Missile impact approval   Cyclical pressure test   Specific design pressures 20
    • Glazing Design Requirements 1.  Large missile or Small missile 2.  Cyclical Loading 3.  Air, Water & Structural 21
    • Impact Missile Requirements Wind Zone 1 – 110mph Wind Zone 2 – 120mph Wind Zone 3 – 130mph Wind Zone 4 – 140mph 22
    • Large Missile Simulation Vinu Abraham Category Wind Speed 1 74 mph to 95 mph 2 98 mph to 110 mph 3 111 mph to 130 mph 110 to 120 mph 4 131 mph to 155 mph 5 >156 mph 23
    • 4.2 Large Missile Test 24 Missile Video
    • Cyclic Pressure Testing Vinu Abraham   Simulate both positive and negative pressures   Determines the maximum design pressure   Consists of 9,000 total pressure cycles   Conducted on test assembly after it impact testing 25
    • Cyclical Pressure Testing 26 Cyclical Video
    • 4.2 Glazing Performance Positive/negative pressures applied to glazing systems
    • Pass/Fail Criteria Vinu Abraham Impact Test Cyclic test   No penetration of the   Same as impact test missile   System as whole   No tears in the must remain interlayer together   No hardware failure   No anchorage failure 28
    • Air, Water & Structural Vinu Abraham This is completely independent from impact & cyclical test! Three Independent Test:   Air infiltration testing   Water penetration testing   Wind load structural testing 29
    • Product Approvals   Information Available On-Line   Consult with Manufacturers   Review approval documentation 30
    • Product Approval Documents What to look for:   Design Pressure   Size of Tested Assembly   Glazing   Anchors   Mullions 31
    • NOA - Items to Consider Vinu Abraham 1.  Request copy of NOA prior to specifying on project 2.  Verify NOA is valid at time of permit 3.  Verify NOA is suitable for project application – large missile vs. small missile 4.  Verify sizes and design pressures specified on NOA encompass the needs of the project application 5.  Verify sizes and design pressures 6.  Testing typically takes 3 to 6 months 7.  NOA’s are typically valid for 5 years (Dade Co.) 8.  Some jurisdictions will accept test results in lieu of NOA 32
    • Design Criteria for Calculations 1. Wind Speed Zone 2. Exposure Classification 3. Building Importance 4. Mean Roof Height 5. Unit Size 6. Wall Location (Building Zone) 33
    • EXAMPLE: Design Calculation for Impact Window 1.  Unit installed in Building Zone 5 of the structure 2.  Mean roof height of 30’ 3.  Window product is 3’ x 4’ = 12 square feet 4.  Home located in wind zone of 140 mph –  Large missile requirement –  Positive & negative design pressures of +33.7/–36.7 based on Table R301.2(2) calculated for Exposure B (R301.2: climate & geographic design criteria) 5.  Home located in exposure “C” requires adjustment coefficient of 1.40 in accordance with Table R301.2(2) –  +33.7 x 1.40 = +47.18 (positive design pressure) –  -36.7 x 1.40 = -51.38 (negative design pressure) Design Pressure (DP) required is +47.2/-51.4 34
    • Designing with Mahogany Mahogany windows and doors offers designers and home owners the highest quality products and the most distinguished beauty in the industry! 35
    • Mahogany Features & Benefits   Custom design, creating unique beauty   Thermal performance, meeting the most stringent energy requirements   100% Mahogany, provides ultimate beauty & superior weather Resistance   Ability to achieve high design pressures   Capable of achieving large sizes for impact resistance 36
    • Mahogany Windows   Product design options   Hardware & component options   Craftsmanship & quality 37
    • Product Selection & Specifications   Submit design concepts to manufacturer   Define code requirement   Specify design requirements   Interior & exterior design selection 38 Section Three
    • 4.1 Critical Glazing Variables   Size windows (based on glass performance)   Insulated Glass or Monolithic   Framing components and system design   Method of anchoring the glass   Thickness & type of glass interlayer   Thermal performance 39
    • Energy Efficient Windows 40
    • Additional Benefits of Impact-resistant Mahogany Windows   Safety   Security   Solar   Sound 41
    • Items to Consider Vinu Abraham   Ease of Installation   Energy Efficiency   Warranties   Service & Maintenance   Manufacturers Reputation   Manufacturers References 42
    • Proper Installation Is Critical   Shim spacing (3/8” maximum)   Unique anchoring methods   Types of anchors (longer & stronger)   Use of installation brackets   Installing anchors through sash/ frame into the openings 43
    • Warranties & Maintenance   Understand the limitations of the warranty   A good warranty should cover all components of the window and door system   A good maintenance program will bring value to the warranty and maintain the life of the product   On-going maintenance with Mahogany windows and doors is critical 44 Section Three
    • Reputation & References   Reputation is extremely important when a client is investing in high end custom windows and doors   Get to know the company you are committing to   References should be requested on projects that have been completed in the last 12 months   A good reference will share their experience and level of satisfaction with the product 45 Section Three
    • Designing for Impact with Mahogany Windows & Doors Summary   Approved for Wind-Born Debris   Custom Design   High Design Pressures   Designed for Impact   Natural Resistance   Energy Efficiency   Beauty of Mahogany 46
    • Thank you for your time! Questions? This concludes The American Institute of Architects Continuing Education Systems Program 47
    • Thank You For additional information on mahogany impact windows and doors please visit: www.peetzwindows.com 48
    • Copyright Materials This presentation is protected by US and International copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited. © Peetz Windows and Doors, 2008 49