System waterproofing foil - 1400x800mm (1,12m2) - 145,60m2/130pcs IVAR.SOLOTOP

Product detailed description

System waterproofing foils are essential components in underfloor heating systems, particularly in residential and commercial buildings where moisture protection is required. These foils are installed over thermal insulation layers to prevent water ingress and ensure long-term system integrity. Installers working with radiant heating systems often integrate these foils into multi-layer construction assemblies, ensuring compatibility with pipe layouts and insulation materials. The IVAR SOLOTOP foil is designed for use with ALPEX or PEX pipes and is suitable for installations with pipe spacing of 50 to 300 mm.

The product is typically used in conjunction with expanded polystyrene (EPS 100) insulation boards. It is applied in dry areas such as living rooms, kitchens, and bathrooms where underfloor heating is installed. The foil must be laid carefully to avoid gaps and overlaps that could compromise its waterproofing function. The installation surface must be clean, dry, and free of sharp objects that could puncture the foil.

Technical parameters

Foil thickness	1 mm
Total thickness	20 mm
Weight	1.154 kg
Code	SOLOTOP
Brand	IVAR

The 1 mm thickness of the foil provides sufficient flexibility for installation while maintaining structural integrity. The total thickness of 20 mm includes the foil and the mounting features for pipe accommodation. These dimensions are critical for ensuring that the foil fits within the overall system thickness and allows for proper pipe placement without excessive compression of the insulation layer.

Installation and connection

The IVAR SOLOTOP foil is installed over a thermal insulation layer, typically EPS 100. The sheets are laid in a staggered pattern to avoid continuous seams and are overlapped by at least 50 mm. The foil includes mounting features for ALPEX or PEX pipes with outer diameters of 16, 17, and 18 mm. The installation spacing must be set according to the system design, typically between 50 and 300 mm. Common installation errors include insufficient overlap, failure to check for punctures, and incorrect pipe placement that causes uneven heat distribution. Installers should ensure that the surface is free of debris and that the foil is not stretched during installation to prevent tearing.

Compatibility and accessories

The IVAR SOLOTOP foil is specifically designed for use with thermal insulation boards made of EPS 100. It is compatible with ALPEX and PEX pipe systems. For a complete installation, the foil should be used in conjunction with thermal insulation boards, pipe fixing clips, and sealing tape for seams. No additional products are required for basic installation, but sealing tape is recommended to ensure full waterproofing performance.

Technical background for designers

The IVAR SOLOTOP foil functions as a barrier against moisture and is made of a reinforced polymer material. The mounting features allow for precise pipe placement and reduce the risk of pipe displacement during the pouring of screed or flooring materials. The material is resistant to common construction chemicals and is dimensionally stable under normal installation conditions. The service life of the foil depends on the quality of the installation, the absence of punctures, and the compatibility with the insulation and pipe materials. Proper integration into the system ensures that the foil remains effective throughout the system's operational life.

Service and operation

The IVAR SOLOTOP foil does not require regular maintenance once installed and covered. However, during the initial inspection phase, installers should check for punctures, tears, and proper overlap. If the system is to be modified or repaired, care must be taken to avoid damaging the foil. No specific service intervals are required for this product, as it is a passive component of the underfloor heating system.

Frequently asked questions

Can IVAR SOLOTOP be used with PEX pipes?
Yes, the foil is compatible with PEX pipes with outer diameters of 16, 17, and 18 mm. The mounting features are designed to accommodate these pipe sizes.

Is sealing tape required for the seams?
Sealing tape is recommended to ensure full waterproofing performance, especially in areas where water exposure is likely. It helps prevent moisture ingress through the seams.

Can the foil be installed over EPS 100 insulation?
Yes, the foil is specifically designed for use with EPS 100 insulation boards. It should be laid directly over the insulation layer to provide a continuous waterproofing barrier.

What is the recommended installation spacing for the pipes?
The recommended spacing is between 50 and 300 mm, depending on the system design and heat output requirements. The spacing should be uniform to ensure even heat distribution.