DANODREN G-20

About this product

The DANODREN G-20 is a black nodular layer, made of high density polyethylene (HDPE).

Drainage of above-ground screeds, when there is no hydrostatic pressure or the screed is above the water table.

Protection of the waterproofing of buried walls and floors in both building and civil works.

Protection of waterproofing in underground works in general: diaphragm walls, treatment on the outside of the wall, tunnels, service galleries, underfloors, etc.

It is mainly used as a protective layer on deep elements and as permanent formwork, both on vertical and horizontal surfaces, thanks to its superior mechanical resistance.

Cheaper to lay compared to traditional coarse gravel layer.

High long-term compressive strength.

High tensile strength.

In the case of open-air tunnels, service galleries, diaphragm walls, treatment of the outer back wall, etc., it facilitates the drainage of water from the ground, in place of the traditional layer of coarse gravel, achieving a sufficient drainage flow.

Ease of paving and laying.

Easy to install.

Chemically unchanged when in contact with chemical agents present in the soil (sulphates, chlorides, etc).

The high stiffness of the membrane protects the waterproofing sheet from any piercing caused by backfill soil.

Allows accumulated water to drain, limiting hydrostatic pressure and avoiding direct contact of dampness with the wall.

The substrate surface must be solid, uniform, smooth, cleaned, dry and free from foreign bodies. Fully extend the PVC membrane, pierce it in proportion to the diameter of the drain, insert the nozzle into the pipe by hot air welding the crown to the membrane and insert the drain basket.

It is advisable to lay the drainage pipe on walls as the protection with the drainage sheet is being extended.

This product may form part of a waterproofing system, so all the documents referred to in the Danosa Solutions Manual must be taken into account, as well as all the regulations and legislation that must be complied with in this respect.

Not watertight.

Acts like a drainage when saturated.

Appropriate precautions shall be taken so as not to pierce the waterproofing during the laying of the product.

The following fasteners should be used: Danodren fasteners (nail with nodule filler button); "shot" type with plastic washer.

A metal profile in two-metre-long pieces shall be used to anchor the system.

Can´t be used as waterproofing.

The product must be stored in a dry place protected from rain, sun, heat and low temperatures.

The product must be stored in an upright position.

This product is not toxic.

Easy to cut to adapt the dimensions to the work.

No welding work should be carried out when the ambient temperature is lower than -5ºC for hot air welding, nor lower than + 5ºC for welding with THF or with Adhesives.

Danosa recommends consulting the safety data sheet for this product, which is permanently available at www.danosa.com, Knowlegde Portal, or it can be requested from our Technical Department.

In all cases, the Occupational Safety and Hygiene standards, as well as the standards of good construction practice, must be taken into account.