Weather The Storm, with Wind

Transcription

1 Introduces Weather The Storm, with Wind Driven Rain Louvers Sponsored By: Ruskin Company 3900 Dr. Greaves Rd. Kansas City, MO Phone: Fax: Course Number: RAS10A Please note: you will need to complete the conclusion quiz online at ronblank.com to receive credit An AIA Continuing Education Program Credit for this course is 1 AIA/CES HSW Learning Unit

2 An American Institute of Architects (AIA) Continuing Education Program Approved Promotional Statement: Ron Blank & Associates, Inc. is a registered provider with The American Institute of Architects Continuing Education System. Credit earned upon completion of this program will be reported to CES Records for AIA members. Certificates of Completion are available for all course participants upon completion of the course conclusion quiz with +80%. Please note: you will need to complete the conclusion quiz online at ronblank.com to receive credit 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 or Ron Blank & Associates, Inc. of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

3 An American Institute of Architects (AIA) Continuing Education Program Course Format: This is a structured, web-based, based self study course with a final exam. Course Credit: 1 Health Safety & Welfare (HSW) Learning Unit (LU) Completion Certificate: t A confirmation is sent to youby and you can print one upon successful completion of a course or from your RonBlank.com transcript. If you have any difficulties printing or receivinging your Certificate please send requestsests to [email protected] Design professionals, please remember to print or save your certificate of completion after successfully completing a course conclusion quiz. confirmations will be sent to the address you have provided in your RonBlank.com account.

4 Copyright Materials This presentation is protected by U.S. and international copyright laws. Reproduction, distribution, display and use of the presentation without written permission of Ron Blank & Associates, Inc and Ruskin Company 2010 is prohibited.

5 Learning Objectives Upon completion of this course the design professional will be able to: Explain what a Louver is List the terms associated with Louvers Explain how louvers are tested and what the new, more stringent test methods are Understand how Test Methods influence louver design Review the AMCA International s standards for louver design and testing

6 Louvers! Louvers are applied universally to many building types

7 Form and Function Louvers are available in all types of shapes and sizes. Louvers provide protection from noise and local weather conditions while providing outdoor air for ventilation. i

8 Form and Function Because of their versatility, louvers make excellent choices for air intake and air exhaust in and out of buildings. Louvers can be located on top of buildings or at ground level. 8

9 Form and Function Louvers can also be part of the design for mechanical rooms. 9

10 Form and Function Or garage and warehouse ventilation. 10

11 Form and Function Louvers can be an integral part of a building s architecture. 11

12 Form and Function Continuous line designs give architects the flexibility they need. 12

13 Here is a Louvered Architectural Mechanical Room Enclosure. It is 4 Form and Function stories high, and is another good example of how special architectural considerations i can be executed using louvers.

14 Form and Function Triangular shapes are very popular designs. 14

15 Form and Function From High Rise to Low Rise, louvers are constructed to meet the demands of the buildings atheistic and mechanical needs.

16 Form and Function Louvers are only limited by your imagination. 16

17 Louver Design Considerations When designing i louvers, consideration should be given to the following five criteria: Airflow Rain Defense Structural Integrity Noise Aesthetics

18 Airflow / Three Factors Airflow/Volume The measurement of the rate of airflow that passes through a louver,(measured in cfm or m 3 s) Pressure Drop The resistance to airflow across an open louver (stated t in inches of water/pa) Free Area Velocity Rate of airflow that passes through the free area of a louver (expressed in fpm/ms)

19 Airflow All Three Factors Depend On The Other Airflow is the amount of air needed to perform the air handling functions in the building. Pressure Drop can increase or decrease with airflow depending on the louver design. Free Area Velocity varies as louver construction varies. Closely spaced louver blades generally have lower free areas and thus higher free area velocity for a given cfm airflow. In Europe, Free Area Velocity is not a generally used term. Sometimes jet velocity (meaning the same thing) is used, but normally face velocity (air volume divided by the core area) is used.

20 Rain Defense AMCA 500-L is the current louver test standard that includes Water Penetration and Wind Driven Rain test criteria. Water Penetration Test refers to the test method that uses Still Air. The velocity at which.01 ounces of water passed through the louver. No European equivalent to the Water Penetration test, only the Wind Driven Test. Wind Driven Rain Tests New to the U.S. test standard with wind pressure applied to face of louver. They are loosely l based on European test standards d generated by HEVAC. Effectiveness Class is the new water penetration classification used for Wind Driven Rain.

21 Structural Integrity Windloads: d American Society of Civil Engineers (ASCE) formula British Standard BS6399 formula Hidden or Visible supports Effective Wind Speed (mph) Louver panel size Blade Span (Span tables) Intermediate bracing

22 Structural Integrity The ASCE formula takes into account the basic wind speed (mph), importance factor, exposure factor, height above ground and any louvers within 10' from corners. Roughly 10% of projects have this requirement. In the UK, the British Standard BS6399 formula is used. The UK Building Research Establishment developed a computer program on disc that calculates the wind load for you using the BS formula. The louver company is responsible for proper sizing of the louver supports. There is no standard in the UK for louver component deflection although most manufacturers follow curtain wall standards. The louver support system affects the appearance and performance of the louver. The hidden vertical blade support can ad as much as 6 to the depth of the louver. Wind speeds can be determined by local authorities or by local codes. 20 PSF is the design standard unless otherwise specified. Wind speeds can be determined by local authorities or by local codes.

23 Noise Sound Transmission Loss ASTM E Standard Test Method for Laboratory Measurement of Airborne Sound Transmission i Loss of Building Partitions and Elements. Sound Transmission Classification (STC) The STC rating is calculated in accordance with ASTM test method E413-87(1999) Standard Classification for Rating Sound Insulation. Free Field Noise Reduction Free Field Noise Reduction is specified in decibels and represents the louvers sound reduction in open areas.

24 Aesthetics Louver Shape Performance difference Finish Type To match building construction elements Flouropolymer and Anodize most common Polyester Powder Coat often used in the UK

25 Finish Mill finish Flouropolymers (Ex., Kynar, Lumiflon) 50% and 70% PVDF Two-Coat and Three-Coat Mica Anodize Clear Anodize (204R1, 215R1) Color Anodize (Brown and black shades) Powdered Coats Prime Coats

26 Standards and Codes With all of the design flexibility of a louver, testing to real world conditions becomes a very key task. Louvers must not only look good, but they must perform in various elements of nature. S h t i ti k th t th l k So what organization makes sure that the louvers work as required?

27 AMCA International Certified Ratings Program The Certified Ratings Program was developed in response to concerns over product performance on the part of buyers, specifiers, and users of air movement and air control devices. The Certified Ratings Program assures that a product line has been tested and rated in conformance with AMCA International s test standards and rating requirements. A state-of-the-art testing laboratory, specifically designed and equipped with the latest equipment to carry-out tests in accordance with all of AMCA International s test standards and other international standards, supports the program. This product performance information is valuable for making product comparisons.

28 AMCA International Certified Ratings Program The Certified Ratings Program requires periodic retesting (every three years) to verify performance. The program also allows for challenge testing, which can be initiated by competing manufacturers. The AMCA Certified Ratings Program is far more rigorous than any program commonly used in the UK. The Building Services Research and Information Association (BSRIA) has developed test standards on behalf of the Heating and Ventilating and Air Conditioning Manufacturers Association (HEVAC). However, there is no system with the BSRIA/HEVAC program to supply performance information for product comparisons nor is there periodic re-testing. Th b tt li i th t AMCA I t ti l C tifi d R ti The bottom-line is that AMCA International s Certified Ratings Program helps people make informed decisions on purchasing and specifying air movement and air control products.

29 AMCA International Licensed Products How do you know the product you specified is licensed by AMCA International? There are basically four ways to determine if a product is participating in AMCA International s Certified Ratings Program. They are: 1. Visit AMCA International s website at and click on Licensed Products. The products are displayed by manufacturers or companies and by product type. 2. Check the manufacturer s catalog. All catalogs containing certified ratings are submitted to AMCA International s technical staff for approval before publication. 3. Look for the Certified Ratings Seal on the product. 4. Contact AMCA International s Certified Ratings Program Department by phone (847) or fax (847) or e- mail [email protected]. There is no system for licensed products under the British/European test method, but BSRIA Test Reports are issued as supporting documents.

30 AMCA Louver Test Methods There are two distinct methods: Water Penetration at Still Air conditions Wind Driven Rain conditions Each method carries its own certification.

31 AMCA Standard 500-L Tests and Certifies the following: Free Air Velocity through Louver Pressure Drop Beginning i Point of Water Penetration Water Rejecting Effectiveness Discharge Loss Leakage (for operable louvers)

32 Standard 500-L Louvers Three main factors affect Free Area (FA): Blade Angle Larger illustration on the Blade Depth following slide Blade Overlap Blade Angle has the most direct impact on FA Other factors that t affect FA: Size of louver- i.e. A 4' X 4' louver will have a different FA than a 2' X 2' louver of the same blade configuration. The reason for this is that the FA includes the frame; the head, sill and jambs- the smaller the louver opening the greater percentage of the overall is 'frame"- and therefore there is less area through which air can pass. Some manufacturers in US and Europe do not use the AMCA method of measuring free area and only consider the space between the blades at the front. Therefore, their free areas are higher than manufacturers who follow the AMCA method.

33 Standard 500-L Louvers Free Area Measured Clearance Minimum Inside Blade to Frame Minimum Inside Blade to Blade

34 Standard 500-L Louvers Once a louver size is below 4' X4', FA is reduced drastically as a proportion of the over all louver area. The frame then constitutes a greater percentage of the overall area. The converse is also true, with louver FA increasing as the louver increases in size and the frame becomes a lesser percentage of the overall louver area. All manufacturers publish FA data charts for unit sizes. If FA is a major concern, be sure to consult the respective manufacturers data chart. Free Area by itself should NEVER be a design criteria. The designer must also consider Pressure Drop. The chart on the following slide will further explain.

35 Standard 500-L Louvers Free Area Tables By Actual FA or % FA 35

36 Standard 500-L Louvers Pressure Drop Pressure Drop (PD) is a key design element for louvers. The more flowing air changes direction, as when passing over a louver blade and through a louver, the higher the PD will be. Blade design has a direct impact on PD. Generally speaking, the more steps, nooks, crannies and drainage provisions there are on a specific blade configuration, the higher the PD. Figure 5.4 test set up is for air intakes and 5.5 is for air discharges or exhausts.

37 Standard 500-L Louvers Louver specifications frequently reference FA and PD. This does not take into consideration the key issue of volume of air passing through an opening. Depth of a louver is a notable issue with regard to PD. A deeper louver with a tighter blade spacing configuration and less abrupt blade angle reduces PD, but the trade off is cost. A deep louver with many blades will cost more than a narrower louver with fewer blades. Gradual curved blades provide for a lower PD than abruptly changing blades. So, there is a give-and-take relationship between louver design, depth, performance, and cost.

38 Standard 500-L Louvers Although the concept of FA and PD makes sense, the prime issue of louver sizing should be "how much air do you need to move through the louver" and "what is the maximum pressure drop you can live with. From this information a louver may be selected and sized to meet all important criteria, satisfying the mechanical engineer and the design architect. The mechanical engineer gets his air performance, the design architect gets his appearance and water protection. Let s talk a little more about water protection

39 Standard 500-L Louvers Wall llintake Pressure Required to Accelerate Air and Overcome Losses due to Blockage and Entrance Conditions

40 Standard 500-L Louvers Wall lldischarge Pressure Required to Accelerate Air and Overcome Losses due to Blockage and Exit Conditions

41 Standard 500-L Louvers Water Penetration or Water Rejection Two Test Configurations 5.6 Water Penetration for Still Air 5.11 Water Rejection for Wind Driven Rain The engineering i community is very familiar with figure 5.6. It is the standard to which most louvers are specified. The new kid on the block is 5.11

42 Standard 500-L Louvers 5.6 Water Penetration

43 Standard 500-L Louvers Test Conditions 4 per hour rain 1250 fpm max free area velocity (approx 14 mph) Weight of water penetration per ft 2 free free area velocity

44 Standard 500-L Louvers Test Conditions This photograph of an AMCA still air test t chamber lets you better understand the test. Please note that water is released under still air conditions. And cascading down both the building face as well as in front of the louver. With a steady intake of up to 1250 fpm, measurements are taken with regard to pressure drop and point of beginning water penetration. Using this test a louver is rated and certified.

45 Standard 500-L Louvers Test Conditions Remember though, that this test is administered under laboratory still air conditions and makes no provision i to gauge the louver s effectiveness when subjected to the horizontal, wind driven rain typical of a moderate to severe storm. Drainable blade louvers tested in accordance with AMCA Still Air Tests, (not the AMCA Wind Driven Rain Water Penetration Test), will entrain some water when subjected to storm conditions. This style of louver performs better than the standard non-drainable styles for water penetration. Always consider the Wind Driven Rain Performance designs when protection from water carryover is a must.

46 MASTERSPEC EVALUATIONS 8/93 Water-penetration testing measures the weight of water in ounces per sq. ft. of louver free area passing from the louver s exterior to the interior i at various air intake velocities... It is important to realize that the test is based on still air conditions and simulates the effect of falling rain and rain flowing down the wetted surface of a building over a louver This test was backed up by the Masterspec in 1993 because it was the best the industry had to offer.

47 MASTERSPEC EVALUATIONS 8/93 While this may provide accurate data for rain conditions with only fan-induced air-intake velocities, no test currently exists that provides data on louver y performance during exposure to wind driven rain

48 Real Life Conditions Severe Storm footage - Real life conditions. Extensive, continuous wind-driven driven rain.

49 Typical Drainable Louver Shape This is a typical 5 6 tested This is a typical 5.6 tested drainable louver

50 Still Air Louver in Wind Driven Test Here is the same type of typical drainable louver in a wind- driven rain test.

51 Examples of Wrong Installations International Airport: Electrical service area for the Monorail system shut down/ immobilized for days due to poor louver selection Standard louvers used where Storm Resistant could have been. Location and performance of the louver is critical to success of the building design. 51

52 Louver Rain Defense Prevents Damage RAIN Minimizes mold in HVAC system Critical for Generators, Production Plants Electrical switchgear areas Insulation in duct WIND Protects interior finishes & contents. Exhibition Halls, Warehousing, Museums

53 Louver Rain Defense AMCA standard 500-L-99 AMCA revised its standard to include recommendations for wind driven rain testing of louvers based on HEVAC method. Masterspec 2000 Includes substantial changes to the advice given when selecting louvers. Wind driven rain resistant louvers are now recommended for use. Products to meet these needs and recommendations have been developed and are increasingly specified.

54 Louver Rain Defense New test methods were required to meet the demands of the building designs and prevent water intrusion. In real-life storm conditions where Wind Driven Rain is commonplace, rainwater penetrates even the highest rated louvers tested under the AMCA still air test. In response to this serious problem, louver manufacturers introduced products specifically engineered to prevent rain entry under storm conditions.

55 Louver Rain Defense To maintain a standard of comparison within the industry, AMCA expanded its testing and certification process to include the testing of louvers under moderate and severe storm conditions. Further, in their 2000 update, Masterspec included specific recommendations for the use of Storm Resistant louvers anywhere water entry was a concern. Clearly, Wind Driven Rain and the Damage it can cause has become a significant factor in both the design and testing of louver products.

56 Still Air vs. WindDrivenRainTests You can visually and descriptively compare the two tests on the following slide. Basic comparison: 1. The AMCA Wind Driven Rain test records multiple data points at each of 8 ventilation rates, over as a period of 8 hours or more per test- while the AMCA still air test tests for only 15 minutes to determine the beginning point of water penetration. 2. AMCA still air test tests to establish a point of beginning water penetration. The AMCA Wind Driven Rain test rates a louver s effectiveness at preventing water from passing through an opening at various test conditions. 3. AMCA still air test has one set of parameters to test a louver.. The AMCA Wind Driven Rain test varies the testing parameters ventilation rate and air intake velocity) to rate the louver at a variety of test points.

57 Still Air vs. WindDrivenRainTests

58 Still Air vs. WindDrivenRainTests AMCA Wind Driven Rain AMCA Still Air Test Duration 30 minutes (minimum) 15 minutes (minimum) Air Intake (fpm) Maximum Minimum No No Wind Driven Rain Yes No Rain Fall Rate 75mm/hr (3") 4"/hr 4/hr or 200mm/hr (8 ) Static Pressure Drop Yes Yes Free Area Yes Yes Test Points Numerous 4 Louver Test Size 1mx1m core or 48 x48 48" X 48" Goal Establish louver Establish point of effectiveness by beginning water varying test conditions penetration As you can readily discern, the Wind driven rain test is much more comprehensive and provides a more thorough evaluation of the test louver s performance with regard to effectiveness against rain penetration. Here is a point by point comparison, BSRIA/HEVAC test standard doesn t have the higher 200mm/hr (8 /hr) rain category.

59 Video WindDrivenTest Look at the wind driven rain test in action.

60 AMCA 500-L Test- Video Wind Driven Rain testing at 29 mph wind velocity and 3 of rain per hour Water is outside where it belongs As you can see, virtually all water is denied entry to the building and is drained in a controlled manner to the sill pan, where it leaves the louver. Remember, with the new test standards it is no longer adequate to specify that a manufacturer must have louvers AMCA certified in accordance with AMCA 500-L-99. You must now clarify what test criteria and tests the louvers must be tested to Still Air or Wind Driven Rain (and if Wind Driven rain, which condition, Standard or Extreme)

61 AMCA 500-L test - Video Wind Driven Rain testing at 29 mph wind velocity Wind Driven Rain testing at 29 mph wind velocity and 3 of rain per hour

62 Standard 500-L Louvers Rejection Effectiveness Classes A 99% to 100% B 95% to 98.9% C 94.9% to 80% D below 80% 3 rain/29 mph wind 8 rain/50 mph wind Four performance classed and two levels of simulated weather conditions are obtained with his test. t Again, no 8 per hour rain/50 mph wind category in the BSRIA/HEVAC standard.

63 LITER RS OF WAT TER PER HOUR RAIN ENTERING YOUR BUILDING STANDARD FIXED DRAINABLE WIND DRIVEN BLE DRAINA STANDA ARD FIXED Lets Compare!!! Volume of water entering a 4 X 4 louver during a onehour period. Based on Wind Driven Rain testing at 29 mph wind velocity (For comparison purposes only) 28 liters = approx. 6 1/2 gallons Liters entering through a 4' x 4' Louver durin a one hour perios. Liters based on Wind Driv Rain Testing at 29 mph velocity (equal to mph windspeeds in real life storms.) As you can see, the wind driven h i Li b d Wi dd i rain louvers perform very well in stopping water intrusion.

64 Standard 500-L Louvers Actual/Theoretical airflow Discharge Loss Classes and above to to and below EXAMPLE: A2 up to 2 m/s at least 99% efficient and between.3 &.399 loss at 394 fpm core velocity (maximum) Obviously a solid metal plate would have 100% water rejection effectiveness as well. But since we re talking about getting g air into the building, the AMCA standard must also consider the louver s efficiency in allowing air in. The Discharge Loss Coefficient is a comparison of the actual airflow though the louver versus the theoretical airflow through an opening the same size as the louver. Theoretical airflow formula is found in AMCA 501. The higher h the class, the better airflow performance. BSRIA/HEVAC Discharge Loss classes are identical.

65 Louver Evolution: Up to the Test! Louver design has evolved as the test methods have improved. Let s take a more detailed look at Louver esaea oedeaedoo a oue Evolution as we focus on the louver s principal function of rain defense.

66 Louver Evolution and Expansion Z or J Non-Drainable Blade Louver Good airflow; very little rain defense K Non-Drainable Blade Louver Old stormproof ; average airflow; very little rain defense Drainable Louvers Good airflow; some rain defense Wind Driven Rain Storm Resistant Louvers Good airflow on vertical blade; moderate airflow on horizontal blade; stops most wind driven rain Hurricane Resistant t Louvers Florida Code Compliant Louvers Moderate airflow; most stringent tests; severe storm conditions; missile impact resistance

67 Non-Drainable Louvers Discussing specifics on Each Louver: Z or J and K Good airflow Looks good Stop rain entry? No! D t if t t is a concern Good as a screen What we have here is your typical non-drainable blade louver. This is a versatile Do not use if water entry louver option anywhere water defense is not a concern. It has a high free area, generally a low pressure drop, may be used in either mullioned or continuous line configurations, can be used for custom shapes and can be created with a radius. Further, this louver is often inverted and used as a sight screen. Cross section Non-drainable blade louvers are readily available in depths from 2 to 6. Other dimensions are available and vary by manufacturer.

68 Drainable Louvers Drainable Blade Louvers have traditionally been the workhorse o of the louver line in the U.S. and remain the most widely specified louver today. This is because since their introduction the louver has performed exceptionally well in the AMCA 500 still air test. They also have been presented in the UK and Europe as performance louvers because they generally do keep more water out. Remember, however, that the AMCA 500 still air test is a laboratory condition, and does not take into consideration wind driven rain, present in most storms. One reason for their excellent test rating is the introduction ti of a drainable head, which h stops most of the water running down the face of the building from passing through the louver and entering the collection chamber. Good airflow Looks good Visible mullions Rain Entry Improvement No Wind Driven Rain prevention Third paragraph, Drainable blade louvers are typically used in an exposed mullion condition. Blades must supported on a minimum of every Generally speaking, if a mullioned 5 feet of length and have an exposed mullion look is desirable, this is a great for drainage every 10 feet. AMCAC Certified louver to specify in sheltered areas Ratings do not apply to any sections over 10 feet length. such as below grade areaways, or anywhere else rain in a still air condition is the norm.

69 Flat Drainable Louvers high performance, and Double Drain High Performance Here we have several examples of flat, non-drainable or hook, drainable, double drainable, high performance and recessed drain louver blades. Generally speaking, variations on the blade profiles shown here all are readily available from most manufacturers. Selection of one over another is typically a function of published louver performance and test data, the desired d aesthetic look including mullions or continuous line appearance, blade angle and blade spacing. Hook Drainable Recessed Drain KEY DESIGN CONSIDERATIONS: Louver blade shape- (louver Profile) Louver spacing (louver pitch) Visible louver support system (visible louver mullions) providing a framed appearance Non visible support systems add as much as much as 6 to the overall depth of a louver but provide uninterrupted blade appearance. Overall louver shape 69

70 Horizontal Blade Design Horizontal Blade Design The most common "look" of a louver is one in which the louver blades run horizontally. In this design we need to ensure the blades are adequately supported, either by visible jambs/mullions or, in the case of architectural line blades, by concealed blade brace supports fastened to vertical channels, or both. Aesthetically, either option is readily attainable, and most manufacturers offer numerous blade profiles designed d for either visible ibl mullion or architectural line looks. Intervals of vertical support, whether visible or concealed, are a factor of engineering based upon the established wind load.

71 Horizontal Blade Design Horizontal Blade Design Horizontal blades are either mechanically fastened or welded to jambs and mullions, or are supported by blade braces connected to vertical channels or angles. Generally speaking, horizontal drainable blade louvers should not span more than 10' without a provision for vertical drainage. This is to ensure the entrained water is removed from the louver blade before it fills the drain, overflows, and returns to the airflow. It is recommended d that t designers consult with a manufacturer early in the design process to ensure the desired mullion interval- to match a building module for instance- is attainable within the established project load requirements. Where rain entry is not a concern, continuous line louver blades without provision for drainage may be utilized to attain the desired uninterrupted linear look.

72 Horizontal Line Blade Design Visible Mullions Hidden Mullions When a continuous line look is desired, a hidden mullion design is preferred. Hidden mullions are usually recessed well behind the louver face so as to be inconspicuous cuous or invisible to the casual observer. They are generally utilized in aesthetical applications. However, due to their design, fully recessed mullion systems do not provide downspouts to adequately relieve drainable blades. 72 Drainable blade louvers require partially recessed or visible mullions for proper operation.

73 Vertical Blade Design Vertical Blade Design Vertical louvers have the distinction of providing a flowing, continuous, curtain-like appearance without the need for an expressed vertical mullion. Thus, the vertical blades themselves act as individual drains. Since rainwater naturally wants to move from the sky to the ground, a vertical louver of Storm Resistant design is an excellent and economical way to provide protection from wind driven rain.

74 Wind Driven Rain Louver Designs Wind Driven Rain louver design includes: Sophisticated Blade Profiles Closely Spaced Vertical and Horizontal Blades Increased Depth

75 Hurricane Louvers Miami-Dade County Approved Hurricane Tests: Water Penetration No System Airflow Building Envelope Failure

76 Hurricane Approval 45 Miami-Dade County Approval Still The Best Applications Wet Room Dry Room Open Room Closed Room Installation Is Part Of Testing Approval

77 Hurricane Tests Conformance To Florida Code Approved Miami-Dade County TAS100(a) Wind Driven Rain Penetration - Wet/Dry TAS201 Missile Impact - Closed TAS202 Static ti Air Pressure - Open TAS203 Cyclic Air Pressure - Closed

78 Tests TAS 100(A) WIND DRIVEN RAIN TEST NO SYSTEM AIRFLOW 15 MINUTES: 35, 70 AND 90 MPH WINDS 5 MINUTES: 110 MPH 8.8 PER HOUR RAINFALL ZERO PENETRATION AT 35 & 70 MPH.05% ALLOWED AT 90 & 110 MPH TAS 202 STATIC PRESSURE HIGH STATIC WIND PRESSURE RESISTANCE 1/2 AND FULL TEST LOADS (1.5 X DESIGN LOAD) 100 PSF RATING - TEST 75 & 150 PSF LOUVER COMPONENT DEFLECTION AND ANCHORAGE METHOD TAS 201 MISSILE IMPACT 9 LB. 2 X 4 PINE BOARD, 7 TO 9 LONG IMPACT VELOCITY: 34 MPH (50 FPS) NO MISSILE PENETRATION OR COMPONENTS DETACHMENT TAS 203 CYCLIC PRESSURE CYCLIC LOADS TO SIMULATE WIND GUSTS PERFORMED AFTER IMPACT TEST 600 CYCLES AT.5 X DESIGN LOAD 70 CYCLES AT.6 X DESIGN LOAD 1 CYCLE C AT 1.3 X DESIGN LOAD CYCLES ARE BOTH POS. & NEG. SAME TEST SET-UP AS TAS 202

79 TAS 201 Test Photos

80 TAS 202 Test Photos

81 Important Miami-Dade County Approved has more than one meaning Usually Wind Load tested t (TAS202) Usually Impact tested (TAS201 & TAS203) Sometimes Wind Driven Rain tested (TAS100A) Refer back to slide 78 to see the differences in tests.

82 Learning Objectives The design professional will now be able to: Explain what a Louver is List the terms associated with Louvers Explain how louvers are tested and what the new, more stringent test methods are Understand how Test Methods influence louver design Review the AMCA International s standards for louver design and testing

83 Introduces Weather The Storm, with Wind Driven Rain Louvers Sponsored By: Ruskin Company 3900 Dr. Greaves Rd. Kansas City, MO Phone: Fax: Course Number: RAS10A Please note: you will need to complete the conclusion quiz online at ronblank.com to receive credit An AIA Continuing Education Program Credit for this course is 1 AIA/CES HSW Learning Unit