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.

Features & Benefits

Robust reinforced multi-layer barrier membrane with extra high tensile and tear strength.
High radon gas resistance.
High performance moisture vapour barrier.
Enhances the overall air-tightness performance of a building.
Available in 4 metre wide roll (unfolded) which means quicker installation and fewer joints.
Fully compatible with the Necoflex RAM System.

Product Availability

Manufacturers Code	Description	Roll Size	Roll Weight
3002978	Monarflex RMB400	2m x 25m	21kg
3002979	Monarflex RMB400	4m x 25m	42kg

Product Data and Performance

Monarflex RMB 400 radon barrier membrane is manufactured from 4 layers. These include virgin low-density polyethylene (LDPE) and a 9mm x 12mm multi-filament polyester (1670 dtex) reinforcing grid between, to give high strength and tear resistance.
RMB 400 Can be used in conjunction with Easi-Load Radon DPC through masonry walls.

Performance Data:
Colour:	Red
Thickness:	0.4mm
Weight:	407g/mÂ²
Tensile Strength:	>600N/50mm
Tear Resistance:	>425N
Elongation:	<19%
Moisture Vapour Transmission:	<0.2 g/mÂ²/day
Water Vapour Resistance:	>1024MNsg^-1
Radon Gas Transmittance:	17x10^-9m/s^-1
Radon Gas Permeability:	7 x 10^-12m²/s

Specs

More Information
Brand	Monarflex
Thickness	0.4mm
Length	25m
Width	2m
Colour	Red

Delivery

Delivery Nationwide T&C's

Brooks offer free delivery on online sales when you spend €250 or more

We deliver small parcels nationwide. For larger items that require truck delivery, we operate delivery zones. Please enter your Eircode to check if your area is covered.

If you are outside the delivery zones listed on our website, email [email protected] for a delivery quote, please note we deliver within the Republic of Ireland only.

Orders under €250 carry a delivery charge of €50, and smaller items have a €12 charge. These costs will be shown during the checkout process.

Brooks provide a kerb side delivery service. Your order will be placed in the nearest safe location, and some trucks can use a crane where it is safe to do so.

Most orders are dispatched within two to four working days. Specialty items or products ordered in may take a little longer. Working days are Monday to Friday, excluding public holidays. Orders placed at the weekend will be processed from the next working day.

We aim to deliver using Brooks vehicles wherever possible, although some deliveries may be made by courier or haulage company.

If you have any questions, please contact [email protected]

Please note that prices shown on our website apply to online orders only.

View our delivery zones here

Returns

Brooks is happy to refund or exchange any full priced item within 28 days of your order date, excluding delivery charges, in line with distance selling regulations.

All items must be returned unopened and in resalable condition.

Product specific returns information

Flooring can be returned within 28 days if the boxes are unopened. A 20 per cent restocking charge applies.
Doors can be returned within 28 days if they are unopened. A 20 per cent restocking charge applies.
Velux products can be returned if the box is unopened. A 25 per cent restocking charge applies.
Non stocked items carry a 15 per cent restocking charge.
Bagged powders cannot be returned as storage conditions cannot be verified.

A full refund or exchange can only be guaranteed if the item is returned within the time frames stated above. Items received after the allowed period will be returned to the original delivery address.

Returning your item

The cost of returning an item is your responsibility unless the product is faulty or an incorrect item was supplied. In these cases, postage costs will be refunded up to the value of the original delivery charge.

Items should be returned using an insured and traceable service, and you should keep note of any tracking numbers. We are not responsible for damage caused during transit, so please ensure items are securely packaged.

A collection service is available and may carry a collection charge. To arrange collection, please contact [email protected]

Please allow up to ten working days after we receive the goods for your refund to be processed.

The return delivery address can be found on your delivery docket.

Delivery rates vary depending on product type and location within the Republic of Ireland.

Please note that any damages must be reported within 24 hours of receiving your order.

Prices shown on our website apply to online orders only.

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