Encofrado perdido Iglu

4 Problems with buildings: Radon gas The problem of rising moisture from the ground and its results on the integrity of the structures and the healthiness of the inner rooms has been well known since antique Rome. At those times, the under-fl oor cavities were created by raising the fl oor a few centimetres using amphoras or low walls. This created a cavity that was connected to the outside with ventilation inlets in order to guarantee ventilation (so-called ventilated wall cavity). This formed the basis for what is today commonly called a "sanitary space". The Roman technique has infl uenced, if not inspired, technicians and designers in all times who have been able to diligently apply this constructive solution, recommending it and applying it to new builds and reconstruction projections. Daliform Group with Iglù®, one of its creations par excellence, has revolutionised building under-floor cavities to finally eliminate this problem through the availability of new materials. Today Iglù® makes the construction of under-floor cavities easy, economic and highly efficient as never before. Radon is an odourless and colourless radioactive gas generated by a few terrestrial rocks caused by decay of uranium 238 and is able to emerge on the surface also at a distance very far from its origin. It easily infi ltrates through cracks in the bottom levels of buildings: basements, cellars, etc. and represents a risk to our health. As it is a radioactive gas, Radon can be carcinogenic if inhaled. As it is mainly released from the ground, if it is not dispersed outside it accumulates in closed rooms where it becomes dangerous. It is considered the second cause of lung tumours after smoking.... Our country and some areas in particular have large amounts of Radon and therefore there is the need for constructive solutions that account for the elimination of this radioactive gas. Danger of Radon gas and rising humidity in a home built on a traditional foundation. Example of a ventilated foundation in Roman times. The problem for buildings: rising moisture 100-184 Bq/m3 50-100 Bq/m3 25-50 Bq/m3 7-25 Bq/m3 No Data Gas Radon in the world www.baygar.com