Exterior render and cement render in Hamburg

Scope of work

• Exterior render on masonry
• Cement and lime-cement render
• Plinth render in the splash zone
• Exterior renovation render for damp and salt damage
• Insulating render to improve thermal protection
• Render repair for cracks and spalling
• Facade mouldings, window surrounds, rustication and decorative elements
• Finishing render in various textures, e.g. scraped or rubbed finish

Render types at a glance

Exterior renders differ mainly in their binder – and therefore in strength, moisture behaviour and appearance. The right render depends on the substrate, the exposure and the desired look; we advise on site.

• Lime-cement render – the standard on masonry: strong, weather-resistant and breathable, as base coat and finish
• Cement render – especially hard and water-resistant, for plinths and the splash zone
• Lime render – soft and highly breathable, compatible with historic masonry in older buildings
• Exterior renovation render – for damp, salt-laden facades and plinths: salts are stored in the pore structure, moisture can evaporate and the surface stays dry and intact
• Insulating render – lightweight render with insulating aggregates; improves thermal protection where ETICS is not possible, e.g. on articulated period facades
• Silicate and silicone resin render – thin finishing renders: silicate is mineral and breathable, silicone resin is water-repellent and resists dirt

Base coat and finishing render

Exterior render is usually applied in two coats: the base coat evens out irregularities and forms the load-bearing layer, while the finishing render provides texture and weather protection. In the plinth zone, particularly durable cement or lime-cement renders are used.

Application

Exterior render is applied in suitable weather – without frost, rain or strong sun during application and curing. We plan the works accordingly and protect fresh surfaces.

Frequently asked questions