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.
Features
- Highly effective venting medium suitable for ground gas affected sites as part of a gas protection system
- Provides a high degree of insulation and is manufactured from expanded polystyrene which achieves a BREEAM rating of A+
- Range of thicknesses and grades to suit most project requirements
- Light, robust and easy to install 1200mm x 1200mm panels
- Ventform panels are resistant to UV light, water and are flame retardant. They contain no CFC’s or HCFC’s
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 which achieves a BREEAM rating of A+.
Applications
Ventform panels are designed for use under suitably reinforced concrete slabs to form an insulated, passive gas venting layer.
Suitability
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:
Dimensions and Performance Characteristics
| Ventform Specification | Overall Depth (mm) | Leg Depth (mm) | Clear Void Equivalent (mm) | Maximum Load Capacity (kN/m2) |
| 80/20 | 80 | 40 | 19 | 20 |
| 80/50 | 80 | 40 | 19 | 50 |
| 100/50 | 100 | 60 | 30 | 50 |
| 150/13 | 150 | 80 | 60 | 13 |
| 200/13 | 200 | 130 | 100 | 13 |
User Notice
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Downloads
Data Sheets
| Product | Issue Date | Version | Size | Download |
|---|---|---|---|---|
| Ventform Plus Data Sheet | 05/2024 | 1 | 353.7 KB |  |
| Ventform Data Sheet | 02/2021 | 4 | 300.9 KB | |
Standard Details
MSDS Data Sheets
| Product | Issue Date | Version | Size | Download |
|---|---|---|---|---|
| Expanded Polystyrene MSDS | 06/2017 | 5 | 137.3 KB | |
Certification, Approval & Guidance
| Product | Issue Date | Version | Size | Download |
|---|---|---|---|---|
| Partners in Technology - Passive Venting - Volume 2 | - | - | 2.7 MB | |
| Partners in Technology - Passive Venting - Volume 1 | - | - | 456.0 KB | |
Brochures
| Product | Issue Date | Version | Size | Download |
|---|---|---|---|---|
| Construction Solutions | 01/2020 | 2 | 6.6 MB | |
| VOC & Ground Gas Protection | 07/2019 | 4 | 4.0 MB | |
Installation Guides
| Product | Issue Date | Version | Size | Download |
|---|---|---|---|---|
| Ventform Plus Installation Guide | 05/2024 | 1 | 249.2 KB | |
| Ventform Installation Guide | 12/2018 | 1 | 264.2 KB | |
NBS Clauses
Our NBS Clauses are hosted on the external website - view NBS Clauses
BIM Library
Please select the BIM file in the format you require.
| Name | IFC Size | IFC Download | Revit Size | Revit Download |
|---|---|---|---|---|
| Ventform | 37.0 KB |
|
1,000.0 KB |
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