Allow air into your building while prohibiting water and debris. There are several levels of water protection available, so you can use our Guide to determine the most cost effective solution for your application.
From this page, you can access technical information, specifications, and drawings for aluminum wall louvers.
In selecting louvers and vents, consideration for your application is critical to your project success. Metal louvers are designed to allow air into the building while keeping out unwanted elements. Improper louver selection may lead to water leakage.
To assist with product selection, each louver model is listed below with optional selections by application, free area, or cost. If you are looking for products not listed, call us. We also offer louvered equipment screens and sunshades made from aluminum with various finishes to fit your project requirements.
Gain the utmost protection against water penetration by using one of our Wind Driven Rain Louvers. These louvers will protect your building from water damage, even under heavy wind and rain conditions.
Any of our louvers can be modified to handle higher wind loads (within limits). However, if you are in Florida or other coastal states with hurricane force winds, use one of our Hurricane Louvers to gain the highest levels of protection.
Louvers are commonly specified in project documents under these divisions:
08 90 00 Louvers and Vents (sometimes listed as 08 9000, 089000)
08 91 00 Louvers (sometimes listed as 08 9100, 089100)
08 91 19 Fixed Louvers (sometimes listed as 08 9119, 089119)
Please use the navigation to the right to select the louver model that suits your requirements. Details of the specific model will be displayed for each selection. Or...
|Louver Application||Louver Type||Model|
|Decorative, Air Exhaust, Ventilation||Standard Blade Louvers||E2JS E4JS|
|Highest Free Area (69%)||Narrow Blade Louvers||E6JN|
|Lower Pressure Drop, High Air Exhaust Velocity||Standard Blade Louvers (Performance Series)||E4JP E6JP|
|Air Intake or High Wind Areas||Drainable Blade Louvers||E2DS E4DS|
|Air Intake, High Wind, Low Pressure Drop, High Air Intake Velocity||Drainable Blade Louver (Performance Series)||E4DP E6DP|
|Extreme Weather, Air Exhaust or Open Ventilation||Wind Driven Rain Louver||E4WS|
|Extreme Weather, Extreme Intake Air Velocity||Wind Driven Rain Louver||E2WV E4WH E6WH|
|Extreme Wind, Decorative, Air Intake and Exhaust||Hurricane Standard Blade Louver||E6JF|
|Extreme Wind, Extreme Weather||Hurricane Wind Driven Rain Louver||E6WF|
Table is based on a test size of 48" wide x 48" high for comparison purposes:
|Product Model||Free Area||First Point of Water Penetration (free area velocity)||Overall Performance (C.F.M.)||Pressure Loss at this velocity (inches water gauge)|
|E6JN||69.1%||915 fpm||9014 cfm||0.12|
|E4DP||59.3%||930 fpm||8826 cfm||0.12|
|E4JP||58.4%||960 fpm||8976 cfm||0.13|
|E6DP||57.7%||1046 fpm||9655 cfm||0.13|
|E6JP||57.3%||1123 fpm||10298 cfm||0.18|
|E4DS||56.0%||930 fpm||8333 cfm||0.13|
|E4WS||56.0%||346 fpm||3100 cfm||0.02|
|E6JF||54.4%||1020 fpm||8884 cfm||0.18|
|E2WV||53.8%||889 fpm||7645 cfm||0.24|
|E6WH||51.4%||>1250 fpm||10275 cfm||0.21|
|E6WF||51.1%||1081 fpm||8832 cfm||0.14|
|E4WH||50.6%||>1250 fpm||10113 cfm||0.25|
|E4JS||50.4%||888 fpm||7157 cfm||0.15|
|E2DS||49.4%||889 fpm||7032 cfm||0.12|
|E2JS||48.7%||725 fpm||5648 cfm||0.08|
Read more about Louver Free Area
|Product Model||Price Compare*|
|E2JS||5% more than E4JS|
|E4DS||10% more than E4JS|
|E2DS||10% more than E4JS|
|E4WS||12% more than E4JS|
|E4JP||15% more than E4JS|
|E4DP||25% more than E4JS|
|E6JP||30% more than E4JS|
|E6DP||35% more than E4JS|
|E6JF||35% more than E4JS|
|E6JN||40% more than E4JS|
|E2WV||50% more than E4JS|
|E4WH||95% more than E4JS|
|E6WH||120% more than E4JS|
|E6WF||125% more than E4JS|
*Price values are for comparison purposes only. Actual quotation prices may vary depending on the sizes required and the options selected.
|Product Model||Blade Spacing||Frame Depth||Wall Depth|
Special shape (round, triangle, dome top, etc) louver suggestions: best choice E4JP.
Use non-drainable louvers (models with J or K blades)- since drainable louvers have a gutter in the jambs, they will not drain properly when used for many of the special shapes. To view common special shapes click here. Use narrow blade spacings - the appearance will be more uniform (especially in short height louvers). E4JP, E6JP, E6JN Use high free area louvers - many of the special shapes have restricted free areas due to angles or rounding. A higher free area louver will help combat this loss of free space. E4JP, E6JP, E6JN
Review the impact of special shapes on Louver Free Area