Roof Over Roof
SERVICES
Roof over roof
“Layher Keder Roof” roof that can be adapted to many applications, for example: installation for extra roof height, wooden roofs and roof repairs, roof protection, and renovation of bridges on highways. “Keder roof XL” can be mounted up to 40 metres!
Weather protection
Keder Roof XL roof over roof
The Keder Roof XL sets the standard for temporary roofs over construction sites, stages and live projects. It is the economical solution for both small and large spans, capable of covering up to 40 metres when designed for local weather conditions.
System
Keder Roof XL system
Keder Roof XL is based on the lightweight Aluminum Lattice Beam 750 with an integrated Keder part at the top. The system provides full weather protection while allowing work to continue underneath in dry, controlled conditions regardless of external weather.
The aluminium construction keeps the overall weight low, making installation and relocation efficient while maintaining the structural integrity needed for exposed and elevated positions.
Applications
Where roof over roof is used
The Keder Roof system has a wide range of applications across construction, infrastructure and events. It allows projects to maintain programme regardless of weather, protecting both workers and materials.
- Roofing during new-build construction and additional storeys
- Timber roof repairs and decking replacement
- Weather protection for new construction and fit-out
- Renovation and maintenance work on motorways and bridges
- Event and temporary structure coverage
Capability
Spans up to 40 metres
The Keder Roof XL can be designed and built with a clear span of up to 40 metres, taking into account local weather conditions and loading requirements. This makes it suitable for covering large structures, multi-lane highways and significant infrastructure projects.
The system integrates with Layher scaffolding, allowing it to be mounted on the supporting structure and adjusted to suit the specific geometry of each project.
Project videos
See the Keder Roof system in action
Short videos showing temporary roofing and weather protection systems used across live construction environments.
Temporary roofing and weather protection in use on site.
Additional view of the Keder Roof system and large-span coverage.
Need the Keder Roof on your project?
Send us the project details, span requirements and programme dates. We will review the scope and confirm availability.