Insulating the roof with polyurethane foam

Roof Insulation with Polyurethane Foam

A significant portion of a home's heat loss occurs through the roof. Experts estimate that proper roof insulation can reduce heating costs by almost half. Moreover, they believe that polyurethane foam is the most optimal material for insulating a roof from the inside; it can be sprayed both from the outside and from the inside of an attic or loft space.

 

ROOF THERMAL INSULATION

"Warm" In our climate zone, roofing is essential for residential buildings; this type of technology will ensure the greatest reduction in heating operating costs during the winter. If low-cost materials are preferred during new construction, in most cases, after just a few years, the homeowner is faced with the need to restore the thermal insulation of the floors and roof as a whole. This is why roof insulation with polyurethane foam is the choice of most developers. Moreover, a significant portion of polyurethane foam insulation installation is dedicated to roof insulation, for a number of objective reasons.

Insulating a roof with polyurethane foam of this class does not require spraying a thick layer; its thermal insulation properties surpass those of traditional polystyrene foam and mineral wool insulation.

Comparative Characteristics:

Insulation	PUF	Polystyrene foam	Mineral wool
Thermal Conductivity	0.02 W/mK	0.02 W/mK	0.055 W/mK

• Polyurethane foam insulation can be applied to any roofing material, allowing for both external and internal (during construction, renovation, or targeted repairs) roof insulation.
• The polyurethane foam coating can be applied to roofs with any slope angle; it has high adhesion. With metal, slate, ondulin, and other types of roofing, it ensures thermal insulation resistance against slippage, even on vertical surfaces.
• Insulating a roof with polyurethane foam does not require the use of additional vapor or waterproofing materials. Therefore, the cost of roof insulation using polyurethane foam is only slightly higher than using traditional insulation.
• Modern equipment allows for the rapid application of polyurethane foam; the average capacity of an insulation installation machine is 300-400 m2 per shift. Thanks to this, the roof of even a large building can be insulated in just 1-2 days.

ROOF INSULATION WITH PU FOAM

PU foam insulation can be applied to the outer surface of the roof covering. This method is widely used for insulating flat roofs of industrial facilities and standard residential buildings.

• The base for spraying polyurethane foam is usually reinforced concrete slabs or old roofing materials (adhesive or fused). The advantage of this method is that there is no need to remove old insulation and waterproofing; polyurethane foam adheres perfectly to a pre-cleaned surface of any material. This creates a monolithic, seamless insulation layer on the roof, preventing the formation of thermal bridges and protecting the roof structure from precipitation.
• It is important to remember that polyurethane foam must be protected from sunlight. The simplest method is to simply paint the roof with weather-resistant compounds.
• Insulating the roof from the attic is much easier. This method is ideal for transforming "cold" structures into "warm" ones. In this case, thermal insulation can be applied to the interior surfaces of the house's roofing with virtually no preparation; simply cleaning it is sufficient. Polyurethane foam can be applied in several layers until the required thickness is achieved according to thermal requirements. This creates a uniform overall insulation layer, and the absence of joints ensures reliable waterproofing and thermal protection of the structure.

We offer partnerships with large developers, housing maintenance companies, and owners of private country houses. If you have any questions about insulating with polyurethane foam, get a free consultation with our specialist right now.