Environment & Sustainability

ISO-DRAIN stands for high-quality dimpled sheets for foundation wall protection. In addition to reliable product quality, transparent environmental information is becoming increasingly important – especially for planning, tendering and sustainable construction.
A verified Environmental Product Declaration, or EPD, according to ISO 14025 and EN 15804+A2 is available for ISO-DRAIN dimpled sheets.

Do you need EPD data for planning, tendering or building assessment?
The complete Environmental Product Declaration is available as a PDF.

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Environmental Product Declaration for ISO-DRAIN

The EPD documents the environmental impacts of ISO-DRAIN dimpled sheets on the basis of a life cycle assessment. It includes aspects such as production, transport, installation, dismantling, disposal as well as recovery and recycling potentials. The declared unit is 1 kg of dimpled sheet. The representative EPD is based on ISO-DRAIN eco / nature with PE recyclate content.

EPD at a glance

  • According to ISO 14025 and EN 15804+A2
  • Published by the Institut Bauen und Umwelt e. V.
  • Declared unit: 1 kg of dimpled sheet
  • Valid for ISO-DRAIN dimpled sheets for foundation wall protection
  • Valid until 07.04.2031

Covered product variants

The EPD covers ISO-DRAIN eco / nature as well as further product variants. The specific life cycle assessment data for the individual variants are listed in the annexes to the EPD:

  • ISO-DRAIN eco / nature G / P with PE recyclate content and fleece lamination
  • ISO-DRAIN made from virgin material without lamination
  • ISO-DRAIN G / P made from virgin material with fleece lamination

Recyclate and production

According to the EPD, the representative product variant ISO-DRAIN eco / nature consists of 89.3 % HDPE regranulate. Production is carried out using an extrusion process. Interplast is certified for energy and environmental management according to ISO 14001 and ISO 50001. Closed cooling circuits are used in production and direct waste heat is utilised.

Use and recovery

According to the EPD, no known interactions between the dimpled sheet, the environment and human health occur during use. At the end of its service life, the dimpled sheet can be thermally recovered. Material recycling is also possible in principle.

Quality and verified properties

ISO-DRAIN stands for consistently high product quality. Interplast applies a quality management system according to DIN EN ISO 9001:2015 as well as product certifications according to EN ISO 13252 and EN ISO 13967.

Download EPD

The complete Environmental Product Declaration for ISO-DRAIN dimpled sheets for foundation wall protection is available as a PDF:

Main EPD English (PDF) Haupt-EPD Deutsch (PDF)

Public annexes to the EPD

In addition to the main EPD, product-specific annexes are available for further ISO-DRAIN variants:

English
Annex 1: ISO-DRAIN eco / nature G / P (PDF)
Annex 2: ISO-DRAIN (PDF)
Annex 3: ISO-DRAIN G / P (PDF)

Deutsch
Anhang 1: ISO-DRAIN eco / nature G / P (PDF)
Anhang 2: ISO-DRAIN (PDF)
Anhang 3: ISO-DRAIN G / P (PDF)

View published EPDs at IBU

Please note: A direct comparison of EPD data is only possible if system boundaries, calculation methods and data sources are comparable.

Status: 05-2026