Pre-covering membranes from Marma Polskie Folie: innovative solutions for durability and energy efficiency of roofs

The roof is one of the most important elements of a building, which must be both durable and provide effective thermal insulation. To meet these requirements, modern covering materials have been used for many years, such as highly vapor-permeable pre-covering membranes and vapor barriers. These products minimize the amount of moisture and condensation that accumulates in the roof, improving its thermal performance and durability.

Vapor barriers and pre-covering membranes (MWK)

Vapor barriers include products such as retarders, regulators and vapor barriers, which are installed on the inside of the roof. Their main function is to seal building partitions against the penetration of water vapor and eliminate drafts that may cause heat loss.

In turn, MWK membranes are responsible for sealing the main roof covering. They allow for the free removal of technological moisture and water vapor from the inside of the building to the outside, while protecting the roof against moisture. Due to the fact that MWK membranes are placed directly on the rafters, under the roof covering, and can touch thermal insulation, they must be waterproof and highly vapor permeable. This means that the membrane should allow water vapor to flow freely, thus protecting the roof against moisture.

Wooly 200 screen: reliable roof protection

Screen Wooly 200 is a pre-covering membrane with a unique, three-layer polypropylene structure. The key element of this product is the bottom layer of needle-punched, “hairy” non-woven fabric, which acts as a condensation buffer. This layer effectively captures water vapor flowing from inside the building, thus preventing moisture in the wood and thermal insulation.

During daily temperature fluctuations, water vapor penetrates the membrane and, at lower temperatures, condenses in the nonwoven layer. When the temperature rises, moisture evaporates quickly, which supports the drying process of the roof. This solution provides year-round protection against moisture, even in changing weather conditions typical of our Polish climate.

The Woolaty 200 screen is used in various types of structures, including: as: a preliminary layer for roof coverings, sealing of thermal insulation boards (PIR, PUR), wind insulation in frame walls and as a cover and thermal insulation distance on roof coverings. Thanks to its high vapor permeability and mechanical strength, Ekran Włochaty 200 is a reliable choice for investors looking for durable and functional roof solutions.

“Hunt the Hairy” promotion

To support the sales of Screen Wooly 200 and to encourage investors and roofers to choose this product, Marma Polskie Folie has prepared a promotion called “Hunt Wooly”. After purchasing the screen, simply find a hologram sticker on the core and collect an additional roll of the Wooly 200 Screen. Details about the promotion are available on the company’s website and from authorized distributors.

Energy efficiency of roofs with MWK membranes

Pre-covering membranes, such as Ekran Włochaty 200, play a key role in ensuring energy efficiency of buildings. By effectively removing process moisture and limiting condensation, they support the effectiveness of thermal insulation. Modern membranes with high vapor permeability, such as Marma Polskie Folie products, allow you to keep the roof dry all year round, which reduces heating costs and extends the durability of the structure.

The determinant of the effectiveness of MWK membranes is the Sd parameter, which determines the equivalent air diffusion thickness. The lower the Sd value, the better the vapor permeability. The Wooly 200 screen is characterized by a very low Sd coefficient, which makes it one of the most efficient solutions on the market.

Modern technologies from Marma Polskie Folie

Marma Polskie Folie constantly invests in research and development, offering innovative products such as Ekran MPFort 2F or MPFRoof. These products feature additional functionalities, including: soundproofing and fire resistance. In 2022, the company introduced the IDEA 175 screen, which combines high vapor permeability with exceptional durability and a symmetrical design.

Interestingly, in the case of the IDEA 175 screen, the designers managed to combine opposing properties – very high vapor permeability, many times higher than that characteristic of MWK polyurethane screens, with exceptional durability. Another characteristic feature of the IDEA 175 Screen is its symmetry, which was achieved thanks to the use of a double-sided, non-woven functional film cover. This screen design has a significant impact on the durability of this product, its increased resistance to UV radiation and greater mechanical strength.

In 2024, the company’s offer was enriched with monolithic membranes with a functional film made of thermoplastic polyurethane (TPU), such as screens from the MPFRoof series. This product combines high durability with extraordinary flexibility, which facilitates the installation of the membrane on the roof and minimizes the risk of damage. This screen is also characterized by high resistance to temperatures that can reach up to +120°C, while offering excellent vapor permeability (Sd approx. 0.11 m).

Marma Polskie Folie is the Platinum Sponsor of the Dach Forum 2025 Fair

Marma Polskie Folie will take part in the Dach Forum 2025 fair, organized by Targi Kielce, where it will act as a Platinum Sponsor of the event. During the fair, taking place from January 17 to 18, the company will present its latest products, including Ekran Włochaty 200, and present other innovative technological solutions supporting the durability and energy efficiency of roofs.

The Dach Forum fair is a must-see in the calendar of thousands of professionals related to the roof sector in the construction industry. The Dach Forum 2025 fair is also a great opportunity to meet Marma Polskie Folie experts, obtain professional advice and familiarize yourself with a wide range of products. Participating in this event will allow investors and roofers to keep up to date with trends in the industry and choose the best solutions for their projects.

Marma Polskie Folie pre-covering membranes, including Ekran Włochaty 200, are a perfect solution for everyone who is looking for reliable, durable and energy-saving roofing solutions. Innovative technologies, wide application and the company’s involvement in education and promotion make Marma Polskie Folie remain the market leader. The “Hunt Woolly” promotion and the company’s presence at the Kielce Dach Forum 2025 Fair are additional arguments to trust the brand and choose products that make roofs durable for years.