Onduline presents Fondaline, HDPE protrusion sheets for the protection and drainage of buried walls

To avoid these damages, the installation of raised layers is a crucial step to guarantee the durability and solidity of the structure.

For new constructions and renovations, the specialist in roofing and waterproofing for roofs and facades Onduline offers FONDALINE^® a complete range of high-density polyethylene (HDPE) membranes to protect buried walls and improve drainage of runoff or infiltration water. Zoom in on two essentials of the range which have recently obtained the renewal of their technical opinion:

• FONDALINE^® In 500: a protective membrane for buried walls with asymmetrical projections (wall side). Designed in high-density polyethylene (HDPE), it provides effective and lasting protection against humidity and infiltration, load constraints, insects, etc.

• FONDALINE^® GEO DRAIN 600 : a honeycomb structure sheet made of non-deformable high-density polyethylene (HDPE) and heat-sealed to a 100 g/m2 calendered polypropylene non-woven geotextile which ensures effective vertical and horizontal drainage.

Complete, the FONDALINE range^® Onduline meets the specific requirements of each project: nature of the terrain, the wall, degree of stress by water, etc. Easy to implement and highly resistant to compression and punching, these Onduline solutions provide long-lasting protection, ensure perfect waterproofing and allow effective drainage of the buried walls of buildings.

FONDALINE^® 500: long-lasting protection for buried walls

FONDALINE^® 500 Onduline is a high-density polyethylene (HDPE) outgrowth sheet specially designed to provide optimum protection for buried walls. Thanks to its asymmetrical outgrowth structure (wall side), this membrane creates an effective barrier against humidity and water infiltration, while allowing effective drainage of runoff water.

Equipped with a non-deformable honeycomb structure of 500g/m², FONDALINE® 500 is resistant to compression and punching for long-lasting protection against external aggressions. The membrane nodules have a precise height of 8 mm, ensuring optimal ventilation of the buried structure which prevents the formation of condensation.

By creating an air gap between the masonry and the backfill, FONDALINE^® 500 Onduline not only contributes to protection against mechanical damage but also durably preserves structures against roots, fungi and bacteria for greater longevity of structures.

Simple and quick to install, FONDALINE^® 500 is sold in easy-to-carry rolls.

• Width (m): 1 / 1,5 / 2 / 2,5 / 3
• Length (m): 20
• Height of cells (mm): 8
• Membrane thickness (mm): 0,55

FONDALINE^® GEO DRAIN 600: optimal waterproofing and drainage of buried structures

Made with high quality materials, FONDALINE^® GEO DRAIN 600 Onduline preserves the integrity of buried walls thanks to its high-density polyethylene (HDPE) honeycomb structure, which guarantees effective resistance and protection against mechanical stress and ground pressure. To further enhance its properties, this base sheet is heat-bonded to a 100 g/m calendered polypropylene non-woven geotextile.². This high-performance combination allows FONDALINE^® GEO DRAIN 600 resists water infiltration and effectively drains excess moisture, thus protecting foundations from potential damage.

The nodules of the basement sheet have a precise height of 8 mm which ensures optimal ventilation of the buried structure. This also helps prevent the formation of condensation and maintains a dry and healthy environment for the foundations.

Finishing profiles, fixing washers, sealing products… Onduline also offers a complete range of accessories to ensure perfect installation and finishing of FONDALINE waterproofing coatings.^®.

• Width (m): 2
• Length (m): 20
• Cell height (mm): 7,5 (+/- 1)
• HDPE thickness (mm): 0,5
• Geotextile thickness (mm): 0,6 to 2KPa