Roof structures
Sloping roofs, flat roofs, and superstructures with BSH/GLT/LVL and CLT/X-lam
Roofs in modern timber construction are often built from glued laminated timber (Glulam / BSH / GLT / LVL) for truss structures or from CLT/X-lam for solid structures. Both materials offer high stability, excellent summer heat protection, and allow for quick and dry installation.
Wooden roof structures with glued laminated timber are characterized by high load-bearing capacity, low dead weight, and attractive appearance—a suitable solution for modern and demanding roofs.
Gable roof made of structural timber
The gable roof is a classic in timber construction and consists of two oppositely sloping roof surfaces that meet at the ridge.
Structural solution (BSH or CLT)
It is often designed as a BSH truss roof, while CLT panels can be laid directly on the supporting structure as large prefabricated roof elements.
Advantages
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Cost-effectiveness – simple construction leads to lower costs compared to complex roof shapes
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Weather resistance – optimal drainage of rain and snow, low sensitivity to wind
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Space utilisation – possibility for attic space or storage area
Hipped and multi-pitched roofs
Hipped and multi-pitched roofs have sloping surfaces on all sides of the building and replace vertical gable walls.
Structural solution
Due to the complex geometry, the structure is mainly made of glued laminated timber (BSH), which allows for precise factory production of corner and spatial connections.
Advantages
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Maximum structural stability – high resistance to wind loads
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Facade protection – deep eaves protect the exterior walls
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High aesthetic value – prestigious and elegant architectural appearance
Single-pitched and flat wooden roof
A flat roof usually has a slope of less than 10° and is often standard in modern wooden construction using modular methods.
Structural solution
It is constructed using CLT panels, BSH beams, or a combination of both materials. CLT panels function as finished roof and ceiling diaphragms and are accessible immediately after installation.
Advantages
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Maximum usable space without sloping ceilings
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Possibility for a roof terrace, green roof, or photovoltaic systems
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Architectural freedom and flexible layout solutions
Advantages of the materials used:
Glued laminated timber (BSH / GLT / LVL)
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Excellent load-bearing capacity over long distances
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Low dead weight
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Suitable for visible structural elements
CLT / X-lam panels
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Solid wood panel with load-bearing capacity in several directions
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Extremely fast installation with large-format elements
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High thermal mass and protection against summer overheating
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Possibility for finished interior wood surfaces
Extensions and roof superstructures made of CLT / X-lam
Extending existing buildings with CLT panels is one of the most effective solutions for urban densification.
Advantages
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Low dead weight compared to concrete and steel
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Minimal load on the existing structure
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Significantly reduced construction time
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High geometric accuracy and structural stability
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Environmental sustainability through CO₂ storage
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Improved indoor climate and acoustic comfort
How is a wooden roof structure manufactured?
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Geodetic surveying with a total station
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Design in a 3D CAD/CAM environment and preparation of CNC files
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Factory production with computer-controlled machines
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Transport and logistics of finished elements
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Fast and dry installation by a specialised team
Advantages in construction
The high degree of prefabrication ensures minimum completion times and high installation accuracy.
A modern solution for roof construction
Wooden roof structures made of glued laminated timber (BSH) and CLT/X-lam are a sustainable and highly efficient solution that combines the ability to span large distances, architectural flexibility, quick installation, and excellent performance characteristics.
Comparison with conventional construction
CLT/X-lam and BSH systems offer advantages over conventional solutions:
