Exterior sun-shading of windows using Warema's Standard External Venetian Blinds reduces the heating effects of solar radiation by up to 90% to create relaxing, comfortable interior spaces. Unlike textile blinds external venetians can admit reflected light resulting in light-filled working or living spaces and reducing the need for artificial lighting throughout the day. Through tilted venetian slats an external view and connection to the exterior is maintained on demand whilst privacy is preserved. When light levels drop external venetian blinds can automatically retract fully out of sight. This feature also provides easy access to the glass for cleaning.

For the highest class of finish, longevity and performance Warema offers the Premium Slat External Venetian Blind. The slat profile is extremely rigid and features only a slight curvature resulting in almost unhindered viewing. The finish is an innovative new direction from Warema offering a natural anodised rather than coated surface. Anodising hardens the slat surface protecting it for a prolonged period. Anodising is a finely textured and gently reflective finish with excellent solar protection properties. The anodised finish matches the surface of commercial and residential glazing systems achieving a perfect synthesis of façade elements. Wind performance exceeds all other systems, with a threshold of up to 30 metres per second (108 km/h), subject to installation configuration.

Warema external venetian blinds with Provisio technology not only provide heat protection and glare control but also improved visual privacy.  ProVisio Technology can improve the view out based on the changing inclination throughout the entire length of the slat that is designed to mimic the human angle of sight.  This ensures the best view out through the slats at eye level while maintaining total privacy from the outside looking in.

Providing a more traditional external sun shading option our cedar slat external venetian blinds offer the significant benefits of shade combined with a warm natural appearance. Premium Western Red Cedar is twice coated with SIKKENS clear finish to enhance the natural colors and provide long lasting protection. Over time the color will soften to grey, harmonising the venetian blinds with other timber elements of the design.

Warema produces a range of "Dim Out" external venetian blinds with superior light blocking and exterior sun shading capability. In addition to reducing solar heat gain, eliminating glare and redirecting daylight, dim out external venetian blinds have features such as rubberised seals on the slats edges, tilting bottom rails, much smaller penetrations in the slats where the lifting tapes pass through and optional seals in the side guide rails which are all designed to prevent light from entering through and around the edges of the blinds. External sun shading with additional benefits. All aluminium and fully retractable dim out external venetian blinds are ideal for bedrooms, audio visual rooms, boardrooms, laboratories or anywhere where light levels need to be tightly controlled for comfort or performance.

The slats of self-supporting external venetian blinds run in a structural guide rail that supports the pelmet and eliminates the need for a pelmet fixing point. A range of rail profiles and pelmet designs provide different visual effects and serve to express the blind as a bold façade element. It is therefore often used to add depth and color to a facade. The self-supporting type can be utilized with all blade profiles and drive types.

Warema asymmetrical external venetian blinds provide complete exterior sun shading control to asymmetrical window shapes. Designers now have the freedom to include a range of window designs in areas subject to high radiant load. The special telescopic base rail together with an advanced mechanical operating system allows this type of external venetian blind to both tilt and fully retract; The solution is unique and the operation, accurate and smooth. Large and multisided shapes can be solved with a series of blinds.