Flat roofs are quite popular in modern construction, but require unique waterproofing solutions. For years, asphalt roofing paper glued on with a tack was most often used for this purpose. Since then, however, a number of innovative solutions have emerged to achieve much better results in terms of both efficiency and aesthetics. What solutions are currently used in waterproofing flat roofs? We answer.
Why is waterproofing so important for flat roofs?
Waterproofing is the part of a building responsible for protecting it from water and moisture. Most often, it is one of the last layers to ensure that water from, for example, rain does not penetrate deeper. An adequate waterproofing layer is extremely important for flat roofs due to their unique construction. They are characterized by a low slope. Because of this, rainwater runs off the roof surface more slowly.
Because of the fact that flat roofs are exposed to runoff water longer, they require a more effective waterproofing layer. Otherwise, the water may start to penetrate deep into the roof structure and reach, for example, the thermal insulation layer. Thus, it will have an impact on the thermal efficiency of the house and increase heating bills. Water deposited in the roof is also a danger due to the increased load on its supporting structure.
Flat roof waterproofing methods
The investor has many options when choosing waterproofing for a flat roof. The easiest way is to divide them into four groups. There are traditional solutions, sprayed modern solutions, as well as ecological innovations such as green roofs, for example.
Traditional ways – tarps
First of all, it is worth mentioning the roofing membranes that have been used for years. These are bituminous materials, made from the same raw material as asphalt. Layers of roofing felt are attached to the roof in a number of ways. Traditionally, they were glued on with asphalt binder. Now it is more common to use welding or mechanical fastening, using special nails or fasteners.
Spray waterproofing
Spray technology in waterproofing is an interesting solution. It is done by spraying a liquid substance, which then hardens. This creates a durable coating that protects the entire roof from water and moisture from precipitation, among other things.
Modern solutions – membranes and much more
Waterproofing of flat roofs is increasingly being done with special membranes. These are modern waterproofing materials that provide high efficiency in retaining water and moisture. They offer high flexibility and resistance to temperature changes. The most commonly used membranes are EDPM, PVC, PVC or TPO.
Innovative ideas – green roofs
Taking into account construction standards, waterproofing the roof can also be done in an interesting way. We are talking about the so-called green roofs. These are living structures that add some greenery to the landscape and are great for environmental reasons. They provide great drainage systems for flat roofs, as water is used to keep the vegetation growing on the roof alive. This vegetation, in turn, traps pollutants from the air, helping to improve air quality in the area.
Installation and maintenance of flat roof waterproofing
Regardless of the method chosen, the most important thing is the installation and proper maintenance of the roof waterproofing. The waterproofing layer should be installed by professionals who will guarantee the creation of an effective shield against water and moisture. RS-MAL company will help you with this.
With RS-MAL we will make a modern waterproofing of a flat roof regardless of the angle of inclination, as well as the parameters of the roof. Qualified experts will help in selecting the most effective waterproofing material. Instead, the installation will be handled by specialists who will create one of the most important insulation layers of the roof. In the future, we can also count on help with maintenance, so that the waterproofing will effectively protect the house for many years.
