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In this type of case, DTU 20.1 recommends positioning the perimeter drain at a distance of around 2 ml from the wall and at a depth of around 80 cm. In this position, the drain limits excess moisture without altering the hydrometry of the soil.
When a building is positioned on a property boundary and drainage on the outside footing is impossible because it would be on the neighbour’s property, drainage can be installed from the inside directly along the foundation under the slab.
Yes, Batifibre works perfectly, and its technology is effective in fine soils (clay, loam).
The fibre is made of polypropylene, a rot-proof material. Used for many years, it does not degrade in the soil.
Absolutely not! BATIFIBRE is not a spreading tube, and does not comply with DTU 64.1.
Yes, Batifibre can be used in a crawl space.
Above a depth of 1.5 m, the drainage system must be combined with either vertical drainage or stepped drains to collect infiltrated water as effectively as possible and limit hydrostatic pressure on the construction.
A drain is a perforated pipe used to remove excess water from the ground. It is quite normal for water to come out of the connections without backfilling the drains. It is necessary to backfill to a minimum of 20 cm to check that it is working properly.
A drain is a perforated pipe used to remove excess water from the ground. It is quite normal for water to come out of the connections without backfilling the drains. It is necessary to backfill to a minimum of 20 cm to check that it is working properly.
The BATIFIBRE drain replaces the traditional drainage complex consisting of (1) a drainage tube, (2) a gravel coating and (3) a filtration and separation geosynthetic. It is therefore not necessary to add gravel to Batifibre drains, as its coating has a drainage function and ensures water circulation. However, the addition of gravel does not harm the proper functioning of the BATIFIBRE, it is just not necessary.
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If you install foundation drainage in compliance with DTU 20.1 (drain + gravel + geotextile), BATIDRAIN complies with the current standard. For your information, yellow agricultural drainage rolls have been banned since 2020.
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For connections with tubes to be glued, a blank assembly is required. You have to strip and glue, then fit everything together in a very short space of time. Experience has shown that glue weakens the pipe and it becomes brittle when the pipe is buried.
For connections with jointed pipes, it is possible to have a well-installed network if you take your time. Then you can readjust the connections. The jointed pipe and fittings can withstand bending and movement due to ground settlement, but there will be no breakage at the fittings. They therefore guarantee a watertight seal.
It is not currently possible to install SANCOL in a slab or under a slab.
There’s no difference between bonded and jointed pipes. Root invasion can only be prevented by using an anti-root fabric.
Yes, the SANCOL pipe can be used to evacuate a building if the flow rate does not exceed the capacity of a ø 100.
The joint is made of rot-proof material, so it has the same lifespan as the pipe.
Yes, the grease will facilitate the connection and readjustment (angulation) will be possible if necessary.
We recommend SN8 resistance for all underground drainage pipes.
No.
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It is not currently possible to install SANCOL fittings in a slab or under a slab.
Conventionally, SN4 fittings are used on SN4 or SN8 pipes.
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It’s a 3-in-1 product, with no need to add gravel or geotextile. And thanks to its rigidity and mechanical strength, the slope can be adjusted very quickly.
Yes, depending on the characteristics, a specific installation is necessary (depth of burial, etc.). Our technical department is at your disposal.
The length of the INFILTRATUBE depends on the quantity of water to be infiltrated and the permeability of the soil.
Contact our specialists to discuss the dimensions of your water infiltration system.
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Its high strength and thinness mean it can be used for green roofs, and when combined with a water recuperator, it can rehydrate the support layer for the plants.
Drainage and subirrigation are two techniques that can be combined to improve the soil’s hydric properties.
Flattex and Flatdrain drains are initially used to drain sports surfaces (golf courses, playing fields, bridle paths, etc.). They can also be used for specific drainage applications.
Please contact our technical services department to discuss your specific requirements.
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No: regulations prohibit the installation of an agricultural drain around a house.