Monarflex RMB400 is a high quality loose-laid reinforced radon barrier membrane that offers high resistance to radon gas and has excellent tensile and tear strength.
Ideally the membrane should be covered as soon as possible after installation. However, the top and bottom layers are made from blown virgin polyethylene which gives excellent resistance to abrasion. It is therefore particularly suitable for projects with large floor areas that are likely to have a high volume of foot traffic during the construction phase. When used in a new building as part of the Necoflex RAM™ system, it provides an effective barrier to the passage of radon, air and moisture from the underlying soil.
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Necoflex is consulted before specifying.
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| Elongation (?) | 19 % | |
| Tear Resistance (?) | 425 N | 75% |
| Water Vapour Transmission (?) | 0.2 gm-2day-1 | 36.36% |
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| Uniclass (?) | Ss_15_10_33_34 Ground gas collection and venting systems | |