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STYRO STONE is the registered trade mark for hollow stones moulded from a high density, "Self Extinguishing" grade EPS (expanded polystyrene), commonly known as styrofoam, as in styrofoam cup.

These are used as INSULATED CONCRETE FORMS (ICF), for a lost shuttering system to provide an extremely economic and environment friendly method of wall construction. This permanent insulated form work is the shell for a super fast & energy saving building.

The resulting structure combines robust construction with very high insulation values. Watch what happens during a Fire test video of a Styro Stone wall.

STYRO STONES can be used by professionals or home owners, for super-fast erection of -
domestic housing, industrial buildings or swimming pools. Video :
Wall & Floor
- One Pour
Since the 70's :
High comfort, Low energy Houses
Live on a site :

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The walls of an average detached bungalow can be erected by 3-4 trained people in only one day.

The U-values of a finished Styro Stone wall range from around 0.29 W/m².°C down to lower than 0.099 W/m².°C. By using a configuration of the VIB stone with any standard stone, Styro Stone can provide an insulation value that supersedes most Building Control standards (such as UK's LABC standards) and out performs Passive House requirements.

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News Archive

Build your house in 10 days!!
Produces more energy than it consumes: Active House
German Energy Center at World Expo in Shanghai 2010 built with Styro Stones
Only 14°C inside a Styro Stone passive house!

Training & Seminars

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Styro Stone seminars


Customer videos


a brisk overview

Earthquake resistant 6 floors in Kunshan

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