Voidformers / vent layers for gas protection ventilation
PAGeoContracting have developed an extensive range of gas protection ventilation products that include voidformers and vent components. When installed as part of a designed gas venting system, they will safely disperse harmful gases to atmosphere.
Under BS8485:2015 it is recommended that all gas protection designs should include provision for some form of sub-floor ventilation. Depending on the site risk this may be a simple pressure relief pathway or demonstrable ventilation with good or very good performance.
PAGeo offer advice and design appropriate for the gas risk identified including demonstration by calculation for ventilation design performance. All part of our ground gas solutions.
Ground gas ventilation products
PAG25 voidformer
- 25mm cuspated high density polyethylene
- High strength and crush resistance
- Available as fully wrapped or single sided geotextile.
PAG 25 Ventlayer
PAG 6 voidformer
- 6mm cuspated high density polyethylene
- High strength and crush resistance
- Fully wrapped geotextile.
PAG 6 Fully Wrapped
PAGeoContracting has developed an extensive range of ventilation components that when installed as part of a designed gas venting system will safely disperse harmful gases to atmosphere. All PAG passive gas venting components are supplied with venting calculations to prove their efficiency in line with BS 8485.
The range includes T pipes, bends and couplings, slotted pipes, voidformer outlets, air bricks, periscope vents and many more.
Datasheets and brochures
| Title | Description | Download |
|---|---|---|
| Venting descriptions | Details of venting components available from PAG. | DownloadPreview |
| Vent-to-vent layer detail | Typical venting component detail. | DownloadPreview |
| V42 HSF | Rectangular vent. | DownloadPreview |
| V41 HSF | Round gully vent. | DownloadPreview |
| V40 vent box | Standard vent box. | DownloadPreview |
| PAG Standard Venting Components | List of PAG venting components. | DownloadPreview |
| PAG 25 Ventlayer | Geocomposite venting layer suitable for use in all ground gas applications. | DownloadPreview |
| PAG 6 Fully Wrapped | Fully wrapped geocomopsite drain for pressure relief designs underneath buildings. | DownloadPreview |
