KOFINAS Exterior Masonry

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

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

Canadian wooden shielding
(OSB) from LP factory
Mineral wool
ECOSE technology
(Category A1- Unburned material)
Enhanced TORX
support screw
Thermoprosopsis system with polystyrene
Metal clamping corner
Gypsum board
Sealand membrane of
controlled transpiration
Swedish pine
wooden frame
Wall base insulation

The latest generation of Kofinas masonry is the top choice in energy-efficient passive building system ECOenergy and can reduce the house energy consumption by 75%-80% compared to conventional masonry.

The leading company of the field improves even further the construction, offering the sturdiest prefabricated solution, tested by the National Technological University of Athens!!

  • The timber used for the frame is Swedish pine, planed and furnaced, C24 class. It does not contain chemical substances and it is one of the top choices worldwide.
  • For the connections, we use TORX screws which are robotically installed, thus having zero loosening margin through time.
  • Each wall is sealed on each side with Canadian OSB from LP factory, which offers exceptional mechanical strength. It also offers high impact strength and allows us to load weights without fear.

MAXIMUM ALLOWED THERMAL CONDUCTIVITY VALUE (U)

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(the smaller U value of your climate zone (area) is, the better insulation is needed)

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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. 

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λ=0.035(W/mK)

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The basic thermal insulation material of masonry. Natural mineral wool offers excellent thermal insulation, sound insulation and fire resistance (category A1-non-combustible materials). Raw materials for the production of mineral wool fiber are the rocks amphibolite, dolomite, or limestone and bauxite. Mineral wool is produced in an electric furnace. This method has advantages over the blast furnace method used to date, because dimensional uniformity is achieved in the produced fibers through the constantly controlled temperature of the melt and it has a minimal impact on the environment, unlike that of the blast furnace. 

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Connection of individual masonry sections using certified TORX screws (ΕΤΑ-11/0030), which offer a higher quality assembly, since they allow better control of the applied torque during screwing.

λ=0.037(W/mK)

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Prokataskeuasmena spitia KOFINAS SA, Energy apodosis, antiseismic, xamili katanalwsi, villa, oikologiki katoikiaProkataskeuasmena spitia KOFINAS SA, Energy apodosis, antiseismic, xamili katanalwsi, villa, oikologiki katoikia Thermal facade with self-extinguishing and waterproof polystyrene, highly impact resistant. The elastic silicone plaster prevents the appearance of cracks and makes the wall waterproof.

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With these metal corners, the structure is COMPLETELY connected to the reinforced concrete base. In this way, we have a “tied” structure with INCREASED MECHANICAL STRENGTH and IMPROVED ANTI-SEISMIC BEHAVIOR.

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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.

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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.

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The masonry timber, which is:

  • Swedish: which means it is very compact.
  • Pine: which means greater resistance to moisture.
  • Drying room: which means that the wood is baked for weeks and undergoes natural disinfestation rather than chemical (like green wood), while the humidity reaches the ideal level of 15-16% for residential construction.
  • Ecological: meaning that the timber does not contain chemical loads and that the policy of the Swedish Wood Industry contributes to the absorption of carbon dioxide.
  • Planed: which means that it has perfectly flat surfaces, which in combination with the factory connections, achieve perfect fit and zero joints in all the structural parts of the house.
  • FSC CoC: Which means that this wood comes from controlled forests in which for every tree that is cut down, 3 more are planted in its place. 
  • Class C24: which means that it has very high mechanical strength, demonstrating up to 80% higher load-bearing capacity than ordinary construction timber.

The company KOFINAS places special orders for the masonry base from Sweden.  

The waterproofing of the wall base is carried out using an impregnated beam, type NP5. The wood preservation category A and AB (Class A and Class B) of the timber we supply implies that the treatment is carried out in accordance with the penetration class NP5 which is formulated with the SS-EN 351-1 standard. This protects the base of the masonry from damage that could be caused by possible moisture in the base from the concrete, improving the durability of the residence.