$2 Billion Power Plant Uses PREPRUFE® Below-Grade Waterproofing

We facilitated the waterproofing of a renewable energy manufacturing facility in Singapore.

Renewable Energy Corporation ASA (REC)
GCP Solution
PREPRUFE® 300R waterproofing


REC manufacturing facility construction

Oslo-based Renewable Energy Corporation ASA (REC) built the world’s largest manufacturing facility for solar energy products in Singapore. The first phase of the project involved the building of an integrated manufacturing facility on a 25-hectare site in Tuas—the western part of Singapore—at a cost of $2 billion USD.

The Tuas manufacturing complex produces solar wafers, cells, and modules for the international power industry market. The first such clean and renewable energy plant in South East Asia, research and development forms an important part of the Tuas complex’s operations.

"The use of PREPRUFE® waterproofing has helped improve the schedule of waterproofing application at the REC facility construction."


Environmental restrictions and tight time schedule

The REC manufacturing complex was built on a site that sat on reclaimed land, with soil less compact than natural soil. There were concerns with soil settlement and how this would affect waterproofing of the substructure. Due to the environment sensitive work that was carried out at this power industry manufacturing facility and laboratories, moisture and waterproofing specifications were set at a stringent 6% or less.

The tight construction schedule was another project challenge. A total of eight months was set aside for waterproofing work covering a surface area of more than 70,000m2. Fast and efficient application of the waterproofing product without compromising performance thus became a critical factor when considering waterproofing options.

Below grade waterproofing success

Installing a high performing vapor barrier was key to ensuring below grade waterproofing. After careful evaluation, the power industry project team selected PREPRUFE® 300R pre-applied waterproofing membrane for the underside of base slabs. 

PREPRUFE® membranes can be applied to smooth prepared concrete or compacted sand horizontally, or permanent formwork or adjoining structures vertically. This speeds up application and construction. Concrete is then cast directly against the membrane’s adhesive side.

PREPRUFE® waterproofing forms an integral bond with the concrete, providing a unique seal against the migration of water and remains unaffected by ground settlement beneath slabs..

gcpat.com | North America Customer Service: +1 (877) 423 6491

We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation or suggestion is intended for any use that would infringe any patent, copyright or other third-party right.

GCP Applied Technologies is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies, Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.

© Copyright 2017 GCP Applied Technologies Inc. All rights reserved.

GCP Applied Technologies Inc., 62 Whittemore Avenue, Cambridge, MA 02140, USA

GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6

GCP Applied Technologies Inc., 2325 Lakeview Parkway, Suite 475, Alpharetta, GA 30009, USA
GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6
This document is only current as of the last updated date stated below and is valid only for use in the United States. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.com. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2024-06-21