HydroFoamer BV operates as a sub-contractor within a broader project ecosystem.
HydroFoamer BV’s primary role is to apply polyurethane (PU) foam—or other sprayable polymers—around the pipeline, following instructions from the Construction Company and in accordance with the Technical and Environmental Plans prepared by the Civil Engineers.
While the setup may vary depending on local conditions and project-specific requirements, the division of responsibilities remains broadly consistent. For instance, the Project Developer may directly engage a civil engineering firm—whether based in Norway or elsewhere—or the Developer itself may act as the engineering authority.
Calculation Models
The core intellectual property—including patents and commissioned academic studies—remains the property of HydroFoamer BV. However, the responsibility for project-specific calculations and technical models typically lies with the designated engineering firm.
This separation is deliberate: chartered engineers are legally responsible for the accuracy of engineering calculations, which must align with local codes and regulatory standards. As a result, the Technical and Environmental Plans—including detailed specifications for polymer application—are under the legal responsibility of the civil engineers involved.
Construction Operations
On site, HydroFoamer BV is contracted by the Construction Company as a specialist sub-contractor to perform polymer spraying operations.
Prior to spraying, the Construction Company is usually responsible for:
- Clearing the pipeline corridor
- Excavating the trench
- Laying the pipe
Once installed, the HydroFoamer system applies a sprayable polymer—typically rigid, closed-cell PU foam—around the pipe, including both straight and curved sections.
A Civil Engineer or surveyor records the pipe position and ensures that the applied layer meets the Technical Plan’s specifications, including depth of coverage and joint encapsulation. Foam or polymer samples may be taken for quality control, and precise installation data is recorded where applicable.
After application, the Construction Company completes backfilling and restores the pipeline path in accordance with the Environmental Plan.
This process requires detailed planning and close collaboration in the field. The supply, storage, and on-site handling of PU foam or other polymers is governed by strict regulations. Risk and liability insurance requirements are clearly defined within the Technical Plans. HydroFoamer BV is accountable to the Construction Company for the quality of its application work—while the Constructor, in turn, is answerable to the Project Developer and the Civil Engineers.