Layher cassette roofs have established themselves as a firm favourite at construction sites for conversion, renovation and restauration. The structure itself and all the equipment is protected during the conversion of roof repair, and normal business operations can continue under a secure roof. Layher cassette roofs have established themselves as a firm favourite at construction sites for conversion, renovation and restoration. The structure itself and all the equipment is protected during the conversion or roof repair and normal business operations can continue under a secure roof.
If weatherproofing is the aim then there are many reasons to choose the Layher cassette roof system.
Economical thanks to top-class technology
A sophisticated, proven construction consisting of high-quality components, specially equipped for recurrent, changing assembly and dismantling operations.
Long, useful service life
The Layher cassette roof is almost indestructible. Its practical design coupled with the chosen materials are key reasons making it an investment that will retain its value over many years. The use of cassette roof girders ensures rapid assembly. The roof trusses are assembled astonishingly quickly at ground level, then mounted on the supporting structure using a crane. The roof cassettes for the intermediate bays are inserted into the channel section and locked in place with clamping plates and wedges. That’s all there is to it! No tensioning or tying is required. The cassettes act as bracing elements. Only every second bay is assembled as a so-called truss bay, and there are no doubled roof
trusses. This represents an additional saving of material and, consequently, also of money and assembly time.
Economical modular system
Variable roof areas are possible thanks to the well-conceived section lengths of the roof trusses and the U-shaped top chord.
Depending on the static system and the load, it is possible to create roof structures with spans of more than 40 m.
Easy to open for material supply
To permit material supply to the site, the Layher cassette roof can be opened at any location by simply removing one or more roof cassettes. No crane is needed.
The Layher cassette roof does not require any specific substructure. This means that no unwanted additional investments are required. The Layher cassette roof can be mounted easily on almost any scaffolding or other suitable substructure.
Total weather proofing
Rainwater is excluded correctly thanks to the over-lapping, shaped roof surface elements. This is a basic requirement for any weatherproofing roof.
Notes on construction and use
When assembling and using the roof, it is essential to observe the applicable regulations and the manufacturer’s assembly instructions. Personal safety apparatus (PSA) for protection against falls must be used.
A structural analysis for spans of up to 27.1 m exists for the roof structure. It is necessary to check the stability of the supporting structure (e.g. scaffolding) and the roof structure.
This cassette roof is a non-insulated, rainproof covering under which condensation may form and drip depending on the outside weather. The connections between the cassettes are not sealed and rainwater may penetrate due to unfavourable wind conditions. We cannot therefore accept any liability for damage to the covered structure. However, additional sealing options exist.