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With a green roof valuable space is obtained. In wet weather it acts like a sponge and saves up to 90% of water. Thus, the water balance of the municipalities will be improved and it is an active flood protection.
Bitbau DÖRR has root-resistant roof sealing, pressure-resistant insulation materials, protective layers, drain and water storage layers and therefore for each particular situation a tailored solution.


Extensive Green Roofs:
Includes flat roofs with low shrubs, grasses and weeds. These plants need little rainfall water and require very little maintenance after the establishment phase. The thickness of the vegetation layer is usually about 10 cm.

Extensive Green Roof
Inverted Roof

In this type of roof construction is the roof sealing below the insulation and is well protected from all external influences. This circumstance has a positive effect on the aging behavior and thus on the life expectancy of the waterproofing sheet.

 

The insulation has to withstand rain, snow and other wet weather. Therefore, XPS insulations are suitable due to their closed cell structure. In addition to their resistance to moisture are ROOFMATE XENERGY insulations are insulating and pressure-resistant.

 

 

 

 

 

 

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Extensive Green Roof
Inverted Roof 2ply

In Austria the 2ply installation of XPS insulation for inverted roofs is recognized in the Austrian regulations (ÖNORMEN) only for energy renovations. That means in new building constructions this form of application solution is based on the general building permit approval in Austria. The basics of the BTZ have to be considered.

 

If the conditions allow it the benefits of an inverted roof construction outweigh. Moreover, at the present-day requirements of thermal insulation (passive house) are also met.

 

 

 

 

 

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Extensive Green Roof
Warm Roof

The waterproofing membrane protects the thermal insulation while an underlying vapor barrier sheet governs the building physical balance. In order that the waterproofing membrane sustains these influences as long as possible and thus reaches an above average service life, bitumen sheets in "premium" quality are advantageous.

 

PUR / PIR insulation systems have a particularly good insulation value, therefore thinner insulation thicknesses is often enough to meet the heat protection standards. A sophisticated gradient insulation system enables the production of the slope in the insulation layer and not in the supporting structure. This saves valuable space and time.

 

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Intensive Green Roofs:
Includes a wide range of landscaping options. This ranges from grass, flower perennials up to trees. The plants which are in a thick layer floor structure require intensive care (maintenance), such as irrigation and drainage, fertilization and cutting.
The plant selection must be made after carefully considering the building site future conditions. The thickness of the vegetation layer is in this system > 15 cm (lawn) and increases depending on the desired form of vegetation.

Intensive Green Roof
Inverted Roof

In this type of roof construction is the roof sealing below the insulation and is well protected from all external influences. This circumstance has a positive effect on the aging behavior and thus on the life expectancy of the waterproofing sheet.

 

The insulation has to withstand rain, snow and other wet weather. Therefore, XPS insulations are suitable due to their closed cell structure. In addition to their resistance to moisture are ROOFMATE XENERGY insulations are insulating and pressure-resistant.

 

 

 

 

 

 

[read more]

Intensive Green Roof
Warm Roof

The waterproofing membrane protects the thermal insulation while an underlying vapor barrier sheet governs the building physical balance. In order that the waterproofing membrane sustains these influences as long as possible and thus reaches an above average service life, bitumen sheets in "premium" quality are advantageous.

 

PUR / PIR insulation systems have a particularly good insulation value, therefore thinner insulation thicknesses is often enough to meet the heat protection standards. A sophisticated gradient insulation system enables the production of the slope in the insulation layer and not in the supporting structure. This saves valuable space and time.

 

[read more]