Non-visible roof 2A

Invisible roof-2A-Kofinas prefabricated houses-New roof

You can select to see the details of the construction materials below:

Ventilation grill
Cutlets from
cement board
Wooden composite beams
Galvanized
its metal formwork
Knauf
Ventilated top
Swedish Tiles
Benders
Reflective film
Wooden purlins
tiles
Waterproofing membrane
breathable
Wooden Canadian
shielding (OSB)
factory LP
Natural mineral wool
ECOSE technology
(Category A1-Non-combustible)
material).
Waterproofing membrane
controlled breathing
Plasterboard
Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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It is used to allow air to pass through the roof. Ventilation achieves excellent energy savings and extends the life of the roof.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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A particularly weather-resistant material. It is considered non-combustible and does not contain organic impurities such as wood or paper that are sensitive to moisture conditions and can lead to rotting or swelling of the material.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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Timber:

  • Drying room: which means that it has a humidity of 15-16% (ideal for residential construction) and has NO chemical loads.
  • Ecological: which means that the wood does not contain chemical loads and that the Swedish Wood Industry's policy contributes to the absorption of carbon dioxide.
  • Class C24: which means that it has very high mechanical strength.
Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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The plasterboard false ceiling is not installed directly on the beams but is attached to galvanized Knauf formwork.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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  • In summer conditions, the air is heated by the sun, becomes lighter and escapes from the roof ridge, resulting in the cooling of the roof materials and the reduction of the temperature of the interior space.
  • In winter conditions, the circulating air keeps the insulation dry, preventing moisture condensation. Ventilation also allows snow that has accumulated on the roof to melt and prevents the formation of ice blocks.
Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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The roof includes tiles made from natural raw materials, their color does not change, they do not absorb moisture and are resistant to frost and temperature changes (-50 C).

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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Reflective multi-layer insulation. It consists of two outer layers of high purity aluminum foil (99.9%) that reflect 97% of the heat transferred by radiation. These two layers overlap a strong layer of Air Bubble Film, providing mechanical strength and additional resistance to the heat transferred by induction.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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Swedish timber purlins (kiln-fired, class C24) with particular resistance to warping. As a result, the tiled roof has great resistance to time and severe weather conditions.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

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The tile roof membrane is 3-layered, vapor-permeable (breathable), but absolutely waterproof. It protects roofs from condensation, rain, snow, dust and all weather conditions. Due to its high vapor permeability, it also allows ventilation of houses from the inside.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

λ=0.13(W/mK)

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OSB  Category 3 with enormous mechanical properties. This material statically strengthens the masonry and enables us to fix any weight to any point on the wall, without the need for a special dowel. 

Prokataskeuasmena spitia KOFINAS SA, Energy apodosi, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

λ=0.035(W/mK)

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Natural mineral wool offers excellent thermal insulation, sound insulation and fire resistance (class A1-non-combustible materials). Knauf Insulation mineral wools with ECOSE Technology benefit from a formaldehyde-free binder, which is produced from rapidly renewable organic materials and does not include petroleum-based chemicals.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosis, antiseismic, xamili katanalwsi, villa, oikologiki katoikiaProkataskeuasmena spitia KOFINAS SA, Energy apodosis, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

λ=0.3 W/(m*K)

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It provides insulation to the structure and protects against moisture, without allowing the appearance of water vapor that could gradually cause damage to the structure.

Prokataskeuasmena spitia KOFINAS SA, Energy apodosis, antiseismic, xamili katanalwsi, villa, oikologiki katoikiaProkataskeuasmena spitia KOFINAS SA, Energy apodosis, antiseismic, xamili katanalwsi, villa, oikologiki katoikia

λ=0.21(W/mK)

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Certified gypsum board (EN520:2004+A1:2009 certification) from the Knauf company, 12.5 mm thick, which meets the German standard DIN 18180. They have natural gypsum certifications, as well as biological control.