Optigrün International AG
About
Optigrün International AG is a family-owned German company headquartered in Krauchenwies-Göggingen (Landkreis Sigmaringen) with approximately 160 employees and over 50 years of experience in green roof and stormwater management systems. Recognized as the European market leader in green roof solutions, Optigrün greens more than 5 million square meters of roof area annually through a network of roughly 140 partner companies. The company's core offering is ten integrated green roof systems spanning the full range of applications: Spardach (economy extensive), Leichtdach (lightweight for limited structural capacity), Naturdach (diverse vegetation), Retentionsdach (stormwater retention), Schrägdach (pitched roofs 15–45 degrees), Gartendach (intensive garden-style), Landschaftsdach (large-scale landscape), Verkehrsdach (traffic-bearing walkable and drivable surfaces), Solargründach (combined photovoltaic and green roof), and trough-based facade greening. Key proprietary products include the OPTIGRÜN-Retentionsdach Drossel system for controlled stormwater discharge, the newly launched Wasser-Retentionsbox WRB 85L water retention module made from PP recycled material (available June 2026), and a full complement of drainage plates (Dränageplatten), bulk granular drainage media (Schüttgüterdränagen), flow restrictors (Ablaufdrosseln), inspection shafts, protective fleeces (Schutzvliese), engineered substrates, vegetation mats, solar mounting systems, fall protection railings (Absturzsicherung), edge enclosures (Randeinfassungen), and gravel strips (Kiesleisten). Optigrün provides architects, planners, and contractors with BIM objects, tender specifications, and technical planning resources. The company holds memberships in BuGG, VFB/grünstattgrau, SFG, and DGNB, and has received ETA certification and the Plus X Award.
Key Products
Economy extensive green roof system providing low-maintenance, cost-effective rooftop vegetation for stormwater management.
Lightweight green roof system for structures with limited load capacity, combining drainage and vegetation layers.
Diverse-vegetation green roof supporting varied plant communities for ecological value and rainwater absorption.
Stormwater retention green roof that temporarily stores and slowly releases rainwater, reducing peak runoff to sewer systems.
Pitched roof greening system with anti-shear anchoring for inclined roof surfaces from 15 to 45 degrees.
Combined photovoltaic and green roof installation that uses substrate for ballast and cooling while generating renewable energy.
Intensive green roof for garden-style rooftop landscapes with lawns, shrubs, and deeper substrate layers.
Landscape-scale rooftop greening for large surface areas with diverse plantings and park-like amenity spaces.
Traffic-bearing green roof system engineered for walkable and drivable surfaces with reinforced substrate layers.
Modular trough system for vertical wall vegetation using self-sufficient plant containers mounted to building facades.
Dual-function plates providing drainage and water storage for green roof systems, available in various depths.
Devices that throttle stormwater discharge from green roofs to control peak flow rates into sewer systems.
Access chambers for monitoring and maintaining drainage connections between green roof layers and building drainage.
Engineered growing media formulated for green roof vegetation support with specific water retention and drainage properties.
Separation and protection layers between roof membrane and drainage, preventing root penetration and mechanical damage.
Support structures for photovoltaic panels on green roofs, using substrate ballast instead of roof penetrations.
Safety railing systems for rooftop edge protection on green roof installations per building code requirements.
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