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WELCOME

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Peetz Windows and Doors, continuing education program for architects.

AIA Course Reference: PTZ101

This course qualifies for 1.0 LU AIA/CES credits

“Designing for Wind-Borne Debris with Mahogany Windows & Doors”

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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.

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“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

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Top Ten Most Destructive Hurricanes (Atlantic)

Note: damages are listed in US Dollars and are not adjusted for inflation

Source: www.mthhurricane.com

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United States - Areas of Risk

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Saffir-Simpson Hurricane Scale

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The Dynamics of a Hurricane

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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

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Wind-Borne Debris Regions

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  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

Codes & Standards for Wind-Borne Debris

TDI

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U.S Wind Speed Map

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State (regional) Wind Speed Maps

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Florida Wind Speed Map

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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)

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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

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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

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

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Product Characteristics

  High design loads   Impact resistant glass   Missile impact approval   Cyclical pressure test   Specific design pressures

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Windows and doors designed for Wind-borne debris regions will have the following characteristics:

1.  Large missile or Small missile 2.  Cyclical Loading 3.  Air, Water & Structural

Glazing Design Requirements

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Impact Missile Requirements

Wind Zone 1 – 110mph Wind Zone 2 – 120mph Wind Zone 3 – 130mph Wind Zone 4 – 140mph

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Category Wind Speed 1 74 mph to 95 mph

2 98 mph to 110 mph

3 111 mph to 130 mph

4 131 mph to 155 mph

5 >156 mph

Large Missile Simulation

Vinu Abraham

110 to 120 mph

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Large Missile Test 4.2

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Cyclic Pressure Testing

  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

Vinu Abraham

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Cyclical Pressure Testing

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Positive/negative pressures applied to glazing systems

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Glazing Performance

Pass/Fail Criteria

Impact Test   No penetration of the

missile

  No tears in the interlayer

  No hardware failure

  No anchorage failure

Cyclic test   Same as impact test

  System as whole must remain together

Vinu Abraham

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Air, Water & Structural

Three Independent Test:   Air infiltration testing   Water penetration testing   Wind load structural testing

Vinu Abraham

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This is completely independent from impact & cyclical test!

Product Approvals

  Information Available On-Line   Consult with Manufacturers   Review approval documentation

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Product Approval Documents

What to look for:   Design Pressure   Size of Tested Assembly   Glazing   Anchors   Mullions

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NOA - Items to Consider

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

Vinu Abraham

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Design Criteria for Calculations

2. Exposure Classification 3. Building Importance

4. Mean Roof Height 5. Unit Size 6. Wall Location (Building Zone)

1. Wind Speed Zone

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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

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Designing with Mahogany

Mahogany windows and doors offers designers and home owners the highest quality products

and the most distinguished beauty in the industry!

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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

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Mahogany Windows

  Product design options

  Hardware & component options

  Craftsmanship & quality

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Product Selection & Specifications

  Submit design concepts to manufacturer

  Define code requirement

  Specify design requirements

  Interior & exterior design selection

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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

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Energy Efficient Windows

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Additional Benefits of Impact-resistant Mahogany Windows

  Safety

  Security

  Solar

  Sound

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Items to Consider

  Ease of Installation

  Energy Efficiency

  Warranties

  Service & Maintenance

  Manufacturers Reputation

  Manufacturers References

Vinu Abraham

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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

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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

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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

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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

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Thank you for your time!

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Questions?

This concludes The American Institute of Architects Continuing Education Systems Program

For additional information on mahogany impact windows and doors please visit: www.peetzwindows.com

Thank You

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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

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