Joints for bituminous membranes

EXPANSION JOINTS for roofs are designed to absorb the various movements when there are structural joints in place.
Because of its shape, its central core can adapt to the various movements, while the two wings on the side constantly ensure excellent anchoring to bituminous felts.
The GDO bulb has as many as three fins, thus providing greater protection. In some situations we recommend mechanically attaching the joints to the slab to ensure greater adhesion, especially with bituminous membranes.
The joint can also be sealed directly on site with a normal hot air blower.

They provide excellent resilience to deterioration caused by the sun, ozone and other weather agents or chemicals normally found in the atmosphere. The elasticity of the material allows for excellent flexibility even at low temperatures, which ensures mechanical and physical properties are maintained over time.
They are perfectly compatible with bituminous membranes such as SBS. We recommend thoroughly cleaning the joint and felt near the area of adhesion to the profile. GDO joints are usable on roofs.