GU system threshold sills for entrance and French doors
The CE-certified, thermally broken GU system threshold sills enable particularly energy-efficient installation of doors and French doors. The thermal break increases living comfort by preventing moisture formation indoors through targeted structural measures. GU system threshold sills are available with accessories for various profile systems, allowing for easy and efficient integration into your existing systems. Thanks to CE certification and a wide range of installation depths, the sills offer a flexible solution for almost all installation situations – both in new builds and renovations.
GU system threshold sills in detail
- High resistance to driving rain in accordance with EN 12208 up to class 9A (also for meeting stile doors)
- Suitable for burglar-resistant elements up to security class RC2 according to EN 1627
- Optimal thermal insulation
- Uniform components ensure efficient stock management and a harmonious appearance for entrance, side entrance, and French doors
- For French doors with provision for standard striker plates and concealed hardware; the striker plates are securely screwed through the aluminium profile
- Convenient connection of sill and frame via profile-specific connecting elements
- Connection of system-specific substructure profiles possible
- Precisely fitting weather bars available for many profile systems
Your solution for barrier-free construction
The demand for barrier-free access is steadily increasing – especially in private homes and public buildings. With the GU system threshold sill bb, Gretsch-Unitas offers an innovative and versatile solution for entrance, side entrance, and French doors. The threshold sill is suitable for both single-leaf elements and double-leaf elements with mullion or meeting stile, as well as door combinations with fixed fields, and is compatible with various timber and PVC profile systems. Thanks to its CE certification, it meets the highest quality and safety standards.
Pre-assembled or pre-configured – the choice is yours
For PVC systems, we offer proven, pre-configured solutions. In the timber and timber-aluminium sector, we have expanded our range with pre-assembled variants – for even greater convenience and efficiency in your planning. Find out more about our versatile GU system threshold sills and discover the right solution for your requirements.
Standards and safety requirements
Our GU system threshold sills meet the highest standards in terms of airtightness, watertightness against driving rain, and wind load resistance, and are tested and certified to EN 1627–1630 up to resistance class RC2. This ensures maximum protection against attempted break-ins.
CE marking
The CE marking is a symbol affixed to a product, indicating its conformity with the essential requirements of the relevant European directives. It shows that the product has been assessed regarding safety, health protection, and environmental protection, and can be freely traded within the European Economic Area (EEA).
Series of standards for burglar-resistant building products
The standards EN 1627 to EN 1630 address burglary resistance of windows, doors and closures. They specify the requirements, classifications and test methods for products intended to protect against burglary attempts.- EN 1627 defines the general requirements and classifications.
- EN 1628 describes the test method for determining resistance under static load.
- EN 1629 covers the test method for determining resistance under dynamic load.
- EN 1630 focuses on the test method for determining resistance against manual burglary attempts.
These standards are crucial for construction products used in security-relevant areas.
air permeability
The EN 12207 standard refers to the classification of air permeability of windows and doors. It defines how much air can pass through a closed window or door under certain conditions. The test is carried out by applying pressure differences across the product to measure its air tightness. These measurements are important for assessing the energy efficiency and comfort in buildings.
driving rain tightness
DIN EN 12208 is a European standard that deals with the classification of watertightness for windows and doors. It specifies how much water can penetrate a closed window or door under certain conditions. The test involves applying water pressure to the external surface of the product to assess its ability to prevent water ingress. This assessment is important for protection against moisture damage and to ensure energy efficiency in buildings.
