Model to Balance an Acceptable Radon Level Indoors

A theoretical model is presented for balancing an acceptable radon concentration in indoor air. The infiltration of from the ground to air can be controlled by barriers or lowering pressure at lower zone slab. Indoor with a higher than that outdoor further through effective dilution theory estimates allowed balance level indoors given ventilation rate, considering contribution materials, building materials and interior. method using this presented, identifying necessary airtightness required barrier building. Barriers include commercially used system solutions, such as bitumen-based blockers, wet-room membranes, reinforced fixed mortar pastes, polyethene membranes. An between 100 300 Bq/m3 used. are evaluated their ability prevent soil gas penetration combination effect on durability, may create far more vulnerable