The company’s expanded line of louvers is designed to protect air intake and exhaust openings in building exterior walls while presenting an architecturally attractive appearance, the company says. The units are available as combination louver dampers, custom louvered penthouses, architectural equipment screens, and brick vents. Sightproof extruded louvers are designed to prevent visual see-through; rain-resistant louvers provide resistance to wind-blown rain; and acoustical louvers include insulated blades for sound attenuation. Thinline extruded louvers offer a narrower frame depth.

Greenheck, P.O. Box 410, Schofield, WI 54476-0410; 715-359-6171; 715-355-2399 (fax); www.greenheck.com (Web site).

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