For a parapet, some dimensions are required

When building a parapet, there are some standards and guidelines that must be adhered to in order to ensure that it functions properly. Dimensions for the height and individual components such as the cover and water drain correspond to the size. In most cases these are minimum values with an upward margin.

Some detail dimensions determine minimum values

Parapets or profiles can be installed as roof edges. A flatter profile is often preferred to a higher parapet, especially on a garage. Some dimensions apply to all closures in order to protect the roof and the facade and to guarantee functionality.

  • Also read - Construction of the parapet
  • Also read - Realizing a parapet as a roof border
  • Also read - Specifications for the height of the attic

In the case of the parapet as a roof border, the construction and the materials used are also important. In the case of sheet metal plumbing, overlaps must be observed. The cover must protect the facade from water with a minimum protrusion. The inward inclination towards the roof ensures that the water drains off in a controlled manner.

Influence of materials

A roof edge trim made of profiled sheet metal must protrude at least five centimeters above the upper edge of the facade. For building heights of eight meters or more, eight centimeters are specified. The drip edges or overhangs of the cover of a parapet must protrude two to four centimeters above the crown and protrude.

A minimum overhang of the drip edge of four centimeters must always be implemented over plastered facades. If copper is used, at least five centimeters are specified. The distance between the individual mounting brackets depends on the height of the building and the size of the parapet.

Seals and height

The minimum height of an attic follows from the structure of the roof. From the top level of the roof surface (bitumen, earth, tiles, gravel, sand), the following dimensions are required for the seals:

  • For roof tags up to five percent at least ten centimeters
  • For larger roof tags at least five centimeters

When building an Attica, the roof texture decides on the total height. When a five percent tilted roof is poured with a five centimeter thick gravel layer, the Attica must be high at least ten centimeters.

Tips & tricks for roofing ends on walk-in roofs As a parapet, you have to build your Attica for at least ninety centimeters high to ensure adequate fall protection. It is again measured from the level of the upper roof surface.