REQUIREMENTS:

• Intermediate structural support is required to resist applied pressure loads for dampers that consist of two or more sections in both height and width. (See below.)
• Tubular steel structural support may be required for large multi-sectioned dampers.
• A non-insulated TAMCO damper weighs approximately 5 lbs./ft². An insulated TAMCO dampers weighs approximately 6 lbs./ft².

   MAXIMUM DEFLECTION:

• The structure providing intermediate support must be designed to resist the highest pressure load, with deflection of less than L/230. This applies whether the pressure load is created by the mechanical system, or by wind load, or if the damper is mounted on the exterior of the building.