Basement insulation with polyurethane foam (PUF)

The high cost of land and the impossibility of organizing construction within city limits are driving attention to existing resources. This is why basements are in steady demand. A simple insulation procedure allows them to be adapted for any purpose. But it's worth remembering that insulating a basement from the inside has a number of challenges associated with the fact that its walls are below ground level.

Polyurethane foam is the optimal insulation for a basement

Many developers use polyurethane foam for thermal insulation of buildings and foundations, a material with decent performance characteristics.

• The low specific gravity of polyurethane foam does not create additional loads.
• High compressive strength, allowing polyurethane foam to withstand mechanical stress due to ground movement.
• Minimal moisture absorption (0.8%), ensured by the material's 95% closed pores, This is important for external insulation in areas with high groundwater levels.
• Low thermal conductivity of polyurethane foam. A thin layer of polyurethane foam is sufficient to achieve the calculated thermal performance indicators, making it suitable for internal basement insulation with minimal reduction in usable floor space.
• Compliance with fire safety requirements (self-extinguishing), the material is recommended for internal insulation of various spaces, including basements.
• The main advantage of polyurethane foam is that it allows for seamless insulation, eliminating the possibility of "cold bridges" that significantly worsen the indoor microclimate and lead to condensation on basement walls.
• The current price of polyurethane foam does not increase the cost of basement wall insulation due to its thin coating thickness.

The technology for applying polyurethane foam is simple; a developer's team with professional equipment can ensure high-speed completion of basement insulation work.

Methods Insulation

Traditionally, thermal insulation of any room, including basements, can be performed from the outside or inside.

• External insulation is best performed during construction. Performing such work in an existing building will be difficult due to the need to provide access to the foundation's structural elements (external basement walls).
  At the same time, external foundation insulation offers a number of advantages. This technology allows for the preservation of basement space. The dew point (the freezing depth of the structure) moves to the outer surfaces, ensuring a favorable microclimate in the basement. Minimal moisture absorption provides additional protection for basement walls from groundwater. For these reasons, this basement wall insulation technology is preferred during the construction phase.
• When renovating basements, it is advisable to use internal foundation insulation. Using polyurethane foam significantly reduces the basement's footprint due to the minimal thickness of the insulation layer.

Applying polyurethane foam to basement walls and ceilings is done using a specialized set of equipment. Its capabilities allow for the treatment of large areas per day (depending on the thickness of the applied layer). This allows for internal insulation of even a large basement to be completed in 1-2 work shifts.

Polyurethane Foam Insulation Application Technology

All surfaces to be covered with a layer of polyurethane foam must be carefully prepared. Polyurethane foam can only be applied to pre-cleaned and dried basement ceilings and walls. The durability and thermal insulation properties of the coating largely depend on the quality of preparation.

The components of the polyurethane foam are mixed in a specific proportion, foamed, and applied under pressure to the surfaces to be treated (basement walls and ceiling). It's important to keep in mind that the curing rate of polyurethane foam insulation is significantly higher than that of traditional polyurethane foam. This significantly simplifies the ceiling application process, and the material does not sag even at significant layer thicknesses.

Polyurethane foam has excellent adhesion, making it suitable for use on basement walls made of various materials (concrete, rubble stone, brick). Furthermore, polyurethane foam adheres well to metal and polymeric materials, making it ideal for insulating utility lines installed in basements.

We provide interior and exterior basement wall insulation at competitive prices. To order basement insulation using polyurethane foam, call us now or submit a request on our website.

We also offer a free consultation with our manager on all matters related to the use of polyurethane foam.