Monarflex Monarflow 27
Monarflow 27 Passive Venting is a high strength, pre-formed geo-composite designed to trap and remove gases from sub-surface layers. It consists of a HDPE core hot welded to a geotextile filter and is available in rolls 915mm wide x 50m in length.
Passive Venting: Basic Principles
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Gas Resistant Membrane - Prevent gas entering building when natural forces are insufficient to cause dilution and dispersion of gas
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High Permeability Ventilation Layer - Hazardous gases migrate into ventilation layer and are diluted and dispersed to atmosphere by air flow via side vents
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Adequate Ventilation Void - To store gas at safe levels for no wind periods
Product Properties and Performance
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Property
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Monarflow 27
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Thickness
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27mm
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Width
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915mm
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Roll Length
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50m
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Compressive Strength
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250 kPa
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Roll Coverage
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45.75m²
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Specification
Venting layer:
Monarflow 27
Installation: Lay in either strips or entire coverage of the building. Ensure adjacent runs are tightly butted together and joined correctly to extractor fittings.
Monarflow 27w laid with partial coverage before installation of gas membrane
