Proper connections are crucial for the watertightness and longevity of a roof. In construction, the term "connection" refers to the link between different building components that ensures the functionality and safety of a building. Connections play a particularly central role in roof construction, as they prevent water from penetrating and damaging the insulation and the building's structure.
What are connections in roof construction?
In roof construction, connections are used to join different parts of the roof. These connections must not only be stable and durable, but also ensure a reliable seal to prevent moisture from penetrating the building. The most common connections in roof construction involve the joints between roof tiles, skylights, chimneys, walls, and roof edges.
Types of connections in roof construction
There are different types of connections used in various areas of the roof. The most important are:
- Ridge connections: The ridge connection is the joint between the two roof surfaces at the highest point of the roof. This connection must be executed with particular care to prevent water penetration. A special sealing membrane or ridge tile is typically used here.
- Wall connections: The wall connection links the roof to the outer wall of the building. To ensure that no moisture can penetrate the wall, this connection is sealed with sealing materials such as bitumen sheets or aluminum coverings.
- Chimney connections: The connection between the roof and the chimney must be particularly robust, as high temperatures often occur here. This connection is usually made with special seals and a protective metal surround.
- Roof window connections: Roof windows are a common source of potential leaks. Proper sealing and correct connection to the roof are crucial to prevent water from entering the building. Special window connection profiles, designed to match the specific roofing materials, are often used for this purpose.
- Eaves connections: The eaves connection forms the link between the roof and the gutter. This connection must be designed so that the water is effectively directed into the gutter and does not run down the wall. Proper sealing is also crucial here.
Important materials for making connections
Choosing the right material for connections in roof construction is crucial to ensuring a tight and stable bond in the long term. Commonly used materials include:
- Bituminous membranes: Bitumen is a classic material for sealing roof connections. It is particularly durable and resistant to water and weathering.
- Metal profiles: Especially for chimney connections and wall connections, metal profiles such as zinc or copper are frequently used, as these materials are particularly robust and corrosion-resistant.
- PVC seals: PVC seals are often used for window connections and smaller roof openings. These are flexible and adapt well to different roofing materials.
- Aluminum flashing: Aluminum is often used for sealing wall and eave connections. It is lightweight, weather-resistant, and easy to work with.
The importance of proper connection execution
The proper execution of roof connections is crucial for the longevity and functionality of a roof. Errors in execution can lead to serious problems such as leaks, water damage, and even mold growth. Therefore, work on connections should always be carried out by professionals experienced in handling the various materials and techniques.
Conclusion: Connections are absolutely essential for a safe roof.
In roof construction, connections are crucial for ensuring the roof's functionality. They guarantee reliable water drainage and protect the building from moisture. Choosing the right materials and carefully executing the connections can significantly extend a roof's lifespan. If you are unsure how to correctly execute connections, consult a professional.
Referenced terms and sources
This existing glossary article was reviewed and approved on 14 October 2026. Time-sensitive information still refers to its original publication context unless the article states otherwise. It does not replace installation instructions or confirm compatibility with a particular roof tile model.
Machine-assisted translation. The German version remains available.
Data sheet and installation guideOriginal source