Boards that breathe
Concern about lack of resistance to water is the most frequent argument against the use of wood-based boards in the construction industry. Pfleiderer has come up with a solution to this problem: the boards PremiumBoard MFP, LivingBoard, and StyleBoard MDF.RWH, which are not only exceptionally resistant to moisture, but also — being diffusion-permeable materials — enable draining moisture outside.
Every year, there are more and more enthusiasts of wooden architecture, which kept losing to brick, stone, and concrete for many years in Poland. A growing number of people are realising the advantages of wood and wood-based materials — their favourable effect on health, energy efficiency, eco-friedliness, and durability. The increased interest in “wooden” solutions stems from, among other things, the emergence of products that eliminate the disadvantages of boards that have been used so far and offer a wider range of possibilities. Possibilities for what? For draining the accumulating moisture away, among other things.
Pfleiderer’s LivingBoard, StyleBoard MDF.RWH, and PremiumBoard MFP boards are open to diffusion, which means that they make it possible to build diffusion-permeable structures that enable draining excessive moisture from building interiors or from roof elements, walls or floors. This not only makes it possible to create a favourable microclimate inside the building, but also provides effective protection against mold and surface damage.
Due to their exceptional durability, PremiumBoard MFP and LivingBoard boards are ideal for use in construction works. They can be used for covering walls, ceilings, and floors. They can also be used as light partition or modular walls, as well as components of framing constructions. They provide excellent acoustic and thermal insulation, which enables obtaining comfortable quietness and reducing heating expenses. The boards are also used for decorating interiors. They can be used for the construction of landings, stairs, and even furniture. If you love austere, raw forms, you will certainly appreciate shelves, tables or unusual seats made of this material.
PremiumBoard MFP is valued primarily for its exceptional durability. Made of long, thin chips arranged in various directions, it is exceptionally strong and easy to process and install. It does not bend or break under load. As opposed to traditional boards, which mostly bear loads along the longer edge, it is equally strong at each point. Its load parameters are: 20 N/mm2 for the longitudinal axis and the transverse axis. For comparison, the results achieved by the competing OSB-3 board are, respectively, 18 and 9 N/mm2! PremiumBoard MFP is also characterised by exceptional resistance to moisture. It swells only a little in contact with moisture — the swelling coefficient is only 10%. Due to their moisture resistance, the boards can be used in rooms where the relative humidity reaches even 85% for several weeks a year — e.g. in the bathroom.
LivingBoard, in turn, is an option for persons looking for environment-friendly solutions. The use of a formaldehyde-free glue in the production of LivingBoard makes it an eco-friendly product that is good for your health and at the same time durable
When it comes to covering external walls and roofs, Pfleiderer recommends StyleBoard MDF.RWH. Even its name, standing for the English words “Roof, Wall, Humid”, explains its application very clearly.
Style Board MDF.RWH was created to counteract the extreme conditions existing
in the roof sheathing and external walls of buildings. It is not only much more resistant to moisture than other boards available on the market, but also ensures proper ventilation, wind insulation, and the above-mentioned water vapour diffusion. This means — in the case of roofs — that it is no longer necessary to leave a ventilation gap between the boards and the thermal insulation inserted between the rafters, which is a major difference in comparison with the conventional solutions.
It the case of “non-breathing” sheathings, such as boards with roofing paper or OSB boards, it is necessary to leave a ventilation gap and protect it with a wind-insulation film. Its purpose is to drain excessive moisture outside. Additionally, it is necessary to make ventilation slots, with requires purchasing water insulation materials and limits the amount of insulation that can be applied between rafters (by 3-4 cm, i.e. by the span of the ventilation gap). This is both labour-intensive and costly. In the case of StyleBoard MDF.RWH, all the space between rafters can be used for insulation. StyleBoard MDF.RWH can even serve as a makeshift roof. It forms a layer of thermal insulation and effectively reduces linear thermal bridges. Due to its high density, StyleBoard MDF.RWH also provides protection against noise from outside.
Installation of Pfleiderer boards is similar to installation of other wood-based products. Boards are placed directly on rafters or joists and are quickly and easily joined with one another (due to tongue-and-groove joints with a specially-designed profile, among other things), without the need to work the edges. They come in the form of sheets, which enables much quicker installation than in the case of traditional boards and makes it possible to reduce waste. A simple gable roof or walls can be covered in one day. This offers considerable time and labour savings.