Ventform provides an excellent passive gas venting medium under suitably reinforced concrete ground floor slabs. When used in combination with perimeter vents and a suitable gas membrane it creates a highly effective method of protecting structures against the ingress of harmful ground gases.
In addition to passive gas venting, Ventform panels also provide a high degree of insulation to the structure above. It is manufactured from expanded polystyrene (EPS) which achieves a BREEAM rating of A+.
Ventform panels are designed for use under suitably reinforced concrete slabs to form an insulated, passive gas venting layer.
The appropriate grade of Ventform panel should be selected based upon the required equivalent void and maximum load capacity that it is required to support. This information is provided in the table below:
Grades and Performance Characteristics
|Ventform Grade||Overall Depth |
|Leg Depth |
|Clear Void Equivalent|
|Maximum Load Capacity|
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