Cover and clad a roof with sheet metal

An interesting alternative to the conventional roof tile or shingle roofing made of concrete or brick is a roof covered with sheet metal. The first choice for flat roofs anyway, pitched roofs can also be covered attractively. Modern construction methods prevent the challenges of noise and condensation.

Various looks including imitation bricks

A tin roof can look like a tin roof, but it doesn't have to be. There are many sheet metal roofing tiles and shingles available on the market, which can hardly be distinguished from conventional tile coverings at a slightly further distance.

A great advantage of the sheet metal roof is its relatively low weight, which reduces both the construction effort and the requirements for the roof structure and statics. Flat roofs can easily be provided with a parapet. It forms a protective roof border.

Forms and metals

For the appearance and optics, a sheet metal roof can be implemented on the sloping roof in the following variants:

  • Trapezoidal sheet
  • Smooth sheet metal with seams
  • Roof shingles
  • Also clad house gables with sheet metal

There are several materials to choose from as metals, but they always have to be corrosion-resistant. Typical types of metal and alloys are:

  • Aluminum (too soft for large ceilings, more suitable for cladding)
  • Copper (noble and expensive)
  • Galvanized sheet steel (cheapest option)

A tin roof is designed to last between thirty and fifty years.

Notes on construction and technical execution

Two typical structural challenges arise with a sheet metal roof. The noise development when it rains and the formation of condensation water, since sheet metal does not allow diffusion.

Both can be avoided through professional assembly. A brick covering is more forgiving of possible inaccuracies and is more economical as a diffusion-open material. A sheet metal roof must be manufactured very correctly in order to take the following aspects into account:

  • Switch off cold and heat bridges
  • Prevent kinks, scratches and other causes that could damage the protective layer
  • Rear ventilation between the cover and the insulation layer to prevent condensation
  • Detailed correct fastenings and screw connections for sound insulation
  • Decoupling of sound bridges
  • Dense impacts that react flexibly to temperatures
Tips & Tricks You can estimate the cost of a sheet metal roof including substructure, verges and drainage from around 1200 euros per square meter. The workload in terms of time is less than with concrete or brick roofs.