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Pro Void Vent 25 - Gas Dispersal Layer

Name: Pro Void Vent 25 - Gas Dispersal Layer
Brand: Delta Membrane Systems Ltd
SKU: osWbq1v1ENnygc7QnMfAaD

Verified by manufacturer 3 months ago

Delta Membrane Systems Ltd

Gas dispersal layer made up of a cuspated HDPE core with a geotextile filter/ separator bonded to a single side

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+44 (0)1992 523523 Website

Application

Intended use is to provide a means of ventilation when used in conjunction with an approved Gas Protection Barrier, in accordance with the recommendation(s) contained within NHBC Guidance and BS 8485:2015.

Description

A gas dispersal layer made up of a cuspated HDPE core with a geotextile filter/separator bonded to a single side supplied in rolls.

Features and benefits:

Optimized for maximum strength and performance.
Providing high levels of air and or gas flow complying with the latest codes of practice, as published by BRE, CIRIA and NHBC.
PRO VOID VENT 25 is independently tested and verified by UKAS accredited bodies.
Gas venting mat.
Optimised for strength and gas flow.
Easy to lay.
Handling: Roll weights can be between 50 and 100 kg hence appropriate equipment is required for unloading and handling.
Storage: supplied in packaging designed to protect product from damage during handling and degradation as a result of UV exposure. Product should be kept in supplied packing until time of installation.
Refer to specific Void Vent installation guidance.
Detailed assistance is available from Delta Membrane Systems Ltd.

General information

Color	Black Grey
Material	High density polyethylene (HDPE) Guidance for specification option: Does not support bacterial growth and is highly resistant to acids and alkalis.
Shape	Rectangle Guidance for specification option: Supplied as a roll.
Length	50000 mm
Width	900 mm
Height	27 mm
Warranty description	60 year

Uniclass	Pr_25_57_51_36 High-density polyethylene (PE-HD) studded sheetsPrimary
CAWS	J42/395 Air and vapour control layer H92/450 Air and vapour control layer H30/30 Air and vapour control membrane H31/261 Air and vapour control membrane H31/45 Air and vapour control membrane H30/261 Air and vapour control membrane

Specification data - High-density polyethylene (PE-HD) studded sheets

Standard	To BS 8485:2015 + A1:2019.
Filter layer	Geotextile.
Sheet thickness	27 mm.
Weight (minimum)	50–100 g/m². Guidance for specification option: Gross 60 kg per roll as supplied. Can be 50–100 kg.
Colour	Black/ grey.
Performance characteristics	-
Flow rate	5.0 L/s/m. Guidance for specification option: To EN ISO 12958, 200 kPa, (i)=1 (composite). Permeability (H50) geotextile: 100 (-20) L/m²/s. Gas flow capacity (composite): 0.024 m³/s. Calculated based on a discharge coefficient of 0.61 with a pressure difference of 10 Pa and a standard air density of 129 kg/m³.

Purpose	Vapour control layer.
Tensile strength (minimum)	To EN ISO 10319 (MD/CMD): 20/15 (-2.0/-1.5) kN/m.
Roll size	50 x 0.9 m.
Typical compressive strength	300 kPa.
Performance characteristics	CBR puncture resistance: 14 (-0.14) kN. Pore size (O90) geotextile: 80 (±20) µm.

Sustainability data

Contains Red List materials	No
Material	High density polyethylene (HDPE) Guidance for specification option: Does not support bacterial growth and is highly resistant to acids and alkalis.
Recyclability	Yes
Recycled content As defined in clause 7.8 of BS EN ISO 14021	0 %