Kalzip® Natural Roof

Kalzip GmbH

Description

The Kalzip natural roof based on the Kalzip aluminium standing seam system makes an important contribution to the preservation of our habitat. In addition to permanent, safe building protection, the natural roof with extensive greenery offers invaluable ecological and economic advantages, e.g. an improvement in the climate, relief of the sewer networks through rainwater retention, more habitat for plants, animals and people, improved sound insulation, higher savings in energy costs through improved thermal insulation.

The Kalzip natural roof meets all technical and design requirements. On all the roof structures described above, the additional structure to the Kalzip natural roof is possible – taking into account the static requirements and in the case of Kalzip 65/333. It consists of a high-performance drainage mat to regulate the water balance and selected substrate as a vegetation layer for extensive greening with sedum plants.

More Over

Roof structure:

1. Sedum planting, low-growing, self-regenerating, drought-resistant, frost-resistant

2. Kalzip planting substrate, natural product with test certificate

3. Kalzip drainage mat with filter fleece coating, supplied as roll goods

4. Kalzip aluminium profile panels, the root-proof and moisture-proof basis for the natural roof structure

5. Thermal insulation layer, precisely adaptable to object-related requirements

6. Kalzip composite clip

7. Steam and air barrier, permanently protects against diffusion moisture from above and below

8. Trapezoidal profile, the durable and lightweight supporting shell for truss and purlin roof construction; Wooden formwork is also possible

Advantages:

The construction is carried out directly on the Kalzip profile panels without additional sealing measures
Complete package in modular design
Permanently root-proof and moisture-proof
High cost-effectiveness due to easy, fast assembly
All components are environmentally friendly and can be
dismantledKalzip can be easily retrofitted to a natural roof with the appropriate static design (Kalzip 65/333 only)
After removal of the greenery, Kalzip remains as a full-fledged roof covering

Kalzip NaturDach also convinces with:

• Relief of the sewer system and delayed introduction of rainwater
Improvement of the oxygen content, the microclimate and the humidity in the building environment
Binding of dust and air-polluting substances, e.g. CO2
Thermal and mechanical protection against temperature, radiation and weather influences
Year-round improvement of thermal insulation and the indoor climate
Increased value for the building
Creation of ecological compensation areas as a countermeasure to the progressive soil sealing

Compensating green areas with the Kalzip^® Natural roof

The water retention effect is particularly high with flat-pitched roofs. The sum of the greening measures of roof areas is the sustainable enrichment for plants, animals and people. The Kalzip Natural Roof makes a valuable contribution to rainwater management and to improving air quality.

In the case of a Kalzip natural roof with a runoff coefficient of Ψ = 0.5 (up to 5 % gradient), 50 % of the precipitation is retained by the storage capacity of the natural roof structure. According to tests at the School of Technology and Architecture in Bonn, about 33 % of the amount of precipitation is returned to the natural rainwater cycle through evaporation.

Technical Information

Kalzip Aluminium Profile Panels 65/333

Thickness: 1.0 mm Surface weight: approx. 4.0 kg/m²

Kalzip Natural Roof Structure

Surface load: water-saturated approx. 90 kg/m²

Runoff coefficient up to 5 %

Roof pitch: Ψ = 0.5 Runoff capacity for precipitation

0.03 l/sec/m² and roof slope 3 %: 2.41 l/sec/m²

Kalzip KD 33 linear drainage system

Width: 333 mm

Thickness: approx. 2.5 cm Surface load: 4.5 kg/m²

Drainage mat

polystyrene, compressive strength: 383 kN/m²

Discharge rate: 4 l/sec/m²

Water storage volume: 3.2 l/m²

Filter fleece

Polypropylene staple fibre fleece

Punch push-through force (CBR test): 1400 N

Pore opening width (Dw): 0.14 mm

Kalzip NDS 60 Natural roof substrate, pH = 5 – 7

Lava and pumice

construction thickness: 6 cm

Surface load: approx. 75 kg/m²

Loose goods, available by truck or

in silo vehicle for approx. 380 m²,

in big bag (1000 l content) for approx. 14 m²

Kalzip flat bale plants Sedum

9 common plant species/varieties

depending on the season,

50 pieces each in plates

Kalzip Sedum sprouts

5 – 7 common plant species/varieties

depending on the season,

in bags of 2 – 10 kg content

Kalzip Nerotec 60 erosion control adhesive

(when using sprouts)

in bags of 60 litres capacity

1 bag is sufficient for 25 m² (requirement 0.4 kg/m²)

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