Matthew Hebden expansion joints have been specified for the Royal Opera House in Covent Garden.
The complicated roofscape of the Royal Opera House produced valley gutters at the intersection of the many roofs, with no means of getting the height in the gutters to allow for the standard 'step' detail, and the number of outlets that would be required.
This design problem was solved by providing in-line waterproof expansion joints. This eliminated the need for steps in the gutters, which reduced dramatically the fall from the top of the gutter to the bottom, and significantly reduced the number of outlets required.
View T-Pren expansion joint for gutters Product Entry