Last update: 19.08.2019
Guidelines
1.

Glass Corners and joints

Naturally enough, the rapid development of glass as a building material means that the rules governing its use are becoming more stringent and comprehensive. European standards now cover most aspects of the application and testing of various types of glass in the construction industry.

This form of modern architecture is characterised by the fact that there is no vertical post, header or load-bearing beam behind the corner or the joint to hide them, nor is there a front cover. Therefore, the glass that is used should generally have UV-resistant edge seals and all materials utilised should be compatible with each other. The conditions for forming the rebates between the adjoining glass elements for sealing are identical with glazing held in frames. The same applies to structural analysis verification and specifications relating to heat and noise reduction where appropriate.


The design possibilities are multifaceted and should be defined clearly when planning commences. Here are some examples of possible implementations.

Glass joint with sealant joint and weather stripping for double insulating glass
Suitable for vertical use, not for roof glazing as there is no ventilation or drainage in the rebate area.

Glass joint with sealant


Glass joint with sealant joint and weather stripping for triple insulating glass
Suitable for vertical use, not for roof glazing as there is no ventilation nor drainage in the rebate area.

Glass joint with sealant

Glass joint with sealant joint and preformed seal for double insulating glass
Ventilation and drainage of the rebate fold is possible, and designed so that it is conveyed to the outside, especially in the joint intersections.

Glass joint with sealant

Glass joint with sealant joint and preformed seal for triple insulating glass
Ventilation and drainage of the rebate fold are available and following the construction to the outside, especially in the joint intersections.

Glass joint with sealant

All-glass corner with double-stepped glazing unit
Ventilation and drainage of the rebate area is not possible, therefore not suitable for angular glazing.

Glass joint with sealant

All-glass corner with triple-stepped glazing unit
Ventilation and drainage of the rebate area is not possible, therefore not suitable for angular glazing. 

Glass joint with sealant


All-glass corner with preformed seal for double-insulated glass with stepped edges
Moisture removal and ventilation of the rebate area is possible if designed so that it is conveyed to the outside; therefore, suitable for vertical as well as for angular glazing.

Glass joint with sealant


All-glass corner with preformed seal for triple-insulated glass with stepped edges
Humidity removal and ventilation of the rebate area is possible and constructed so that it is conveyed to the outside; therefore, suitable for vertical as well as for angular glazing.

Glass joint with sealant


Detailed explanations of this subject matter regarding national rules (e.g. in Germany) are contained in the V.07 leaflet from the window + façade association or can be defined together with GUARDIAN during the planning stage.