Serial production of TPO membranes began in the 90s. last century. The basis for production today are thermoplastic polyolefins. The composition of the material has special additives to increase fire properties, antioxidants and all kinds of stabilizers. All this helps to increase the durability of products and their resistance to external conditions. TPO membranes are reinforced with a polyester film, but there are also varieties without reinforcement. The membrane can be stacked in a variety of ways.
Description
The basis of the TPO membrane is the carbon chain and the sulfur compound, which helps to strengthen. The synthetic method allows to achieve a carbon reverse sequence. This combines ethylene and propylene. The first is consumed in the amount of 50 to 70%, the second - in the range of 30 to 50%. This provides the desired chain strength.
TPO membranes are recommended for use on roofs that have complex configurations. This should include buildings for cultural, social and industrial purposes, namely:
- administrative buildings;
- recreation centers;
- athletic facilities;
- Cafe;
- Hotels
- restaurants
- different enterprises.
The described material is as technologically advanced, modern and reliable. This high-tech roofing and waterproofing material is widely used in construction for the reconstruction of bridges, tunnels, water tanks, roofs and foundations. Compared with the PVC membrane, TPO is more reliable, requires high qualification of roofers and has excellent mechanical strength.
TPO membranes are laid by the method of flooring and further welding of seams with hot air. This requires automatic equipment. The seam is high-quality and durable. Roofing can be carried out on the roofs of any slope of the slopes.
Why choose a membrane?
The membrane can be used in various regions, for example, in countries with a humid or hot climate, as well as in the North. This material has several color schemes. The use of white material is very beneficial due to energy savings in the summer, if necessary, conditioning buildings. TPO membranes have excellent quality characteristics, these are:
- elasticity;
- environmental friendliness;
- tensile strength;
- resistance to destruction;
- durability;
- UV resistance.
Specifications
Membrane performance can be seen with FLAGON ER / PR as an example. The thickness of the material can vary from 1.2 to 2.5 mm. The mass is 1.1 to 2.27 kg / m 2 . The tensile strength is greater than 1100 N / 5cm. These values ββdiffer along and across. In the first case, the minimum value is 1286, in the second - 1195 N / 5cm.
TPO membrane for the roof has a relative elongation to rupture. Along this parameter is 25%, as well as across. The tests were carried out on a rectangular sample. The tensile strength is greater than 300 N. The puncture resistance is between 400 and 1650 mm. Flexibility at low temperatures is less - 35 Λ.
additional characteristics
Considering the characteristics of a TPO membrane, you can also distinguish resistance to hydrostatic pressure at 2 bars for 24 hours. The material is waterproof. The relative change in linear dimensions at 80 Β° C after 6 hours is less than 0.5%. The material does not crack during artificial weathering, which means it exhibits stability when exposed to negative factors. The roots do not grow under the material. Resistance to degrees on a rigid base is a limit of 17 to 25 m / s.
Reviews of features and benefits
The material, according to customers, is elastic, has high strength and is resistant to deformation at low temperatures. Elasticity is maintained up to - 60 Β° C. Consumers also like low water absorption, the material has vapor barrier qualities. It is durable to atmospheric phenomena and is able to undergo temperature fluctuations. Even under such conditions, the service life reaches 50 years. Using a membrane, it is possible to equip single-layer roofs with various slopes, as well as ways of attaching to the surface.
TPO and PVC membranes are also good because they contain fillers and polymers, but they are half as much as in rubber analogues. The coating is resistant to aggressive manifestations of the external environment. There are no volatile plasticizers that could cause cracks, chemical degradation and physical aging of the product.
Installation Recommendations
Buyers emphasize that during installation there is no need to act on the material with an open flame. The composition contains fire-fighting chemical components. Production involves the use of antifungal components. The composition does not contain oils and other substances that could contribute to the growth of the fungus. The color scheme, although limited to white, but the consumer has the opportunity to order a membrane of other shades at will.
Varieties of Firestone membrane by laying method. Specifications
Considering the characteristics of the Firestone TPO membrane, we can distinguish that the material is classified by type of installation. Mechanical fixed roofing systems are available for sale. Cloths up to 2, 44 m wide are suitable for this. The width and mounting option are selected taking into account wind loads. The overlap size of adjacent paintings is not less than 150 mm. The connection is overlapped using mounting plates and parts. They are located with a deviation from the edge of 50 mm.
Firestone TPO roofing can also be a fully bonded system. For this, contact adhesive is used. Adjacent canvases are joined with an overlap of 75 mm. Welding among themselves is carried out in a thermal way. Waterproofing of the edge and through elements is carried out according to the technical conditions of the company.
Ballast method
The roofing system can also be ballast. It is laid without fixing on the base. The overlap remains the same, welding is carried out in a thermal manner. After completion of laying, the membrane is fixed by gravel backfill. The relative elongation of the membrane from Firestone is more than 20%.
Static load resistance is more than 25 kg. The impact resistance of a soft base is greater than 2000 mm. On a solid basis, impact resistance is slightly lower and amounts to 800 mm. The wear resistance in this case is 400 N.
Characteristics and cost of the Technonikol membrane
TPO-membrane "TechnoNIKOL", the price of which is 687 rubles. per square meter, has a water absorption by weight of less than 0, 11%. Suitable material for non-operating roofs. The tensile strength of the weld after installation is more than 600 N / 50 mm. Straightness 10 m less than 30 mm.
Under the influence of artificial climatic factors, no cracks appear on the surface. When heated for 6 hours to 80 Β° C, the linear dimensions change by 2% or less. Resistance to static bursting is greater than or equal to 20 kg. TPO membrane, the price of which was mentioned above, belongs to the 4th group of flammability.
Carlisle Reinforced Membrane Reviews
This versatile material is a modern roofing polymer membrane made in the USA. The canvas is available in three thicknesses. The minimum value is 1.14 mm, the maximum is 32.3 mm. The width of the film varies from 2.44 to 3.66 mm. The length of the roll is 30.5 mm.
Reinforced TPO-membrane is implemented in three colors: white, gray, beige. On request, a membrane with a different color scheme is available. Consumers like the material to be waterproof, quite tear resistant and highly resistant to abrasion.
The coating is smooth, has excellent reflective ability and is resistant to solar and thermal radiation. The membrane is not harmful to the natural environment, it is 100% recyclable, can be used in harsh climatic zones, is versatile, and can be stacked in different ways. Consumers also like a rather long service life, which reaches 50 years.
Mounting Features
Installation of TPO membranes can be carried out in one of several ways. Among others, the ballast roof should be highlighted. This technology is used to repair old bitumen roofs and new ones, which have a concrete base. In this case, the membrane is attached around the perimeter and at the joints. On the surface of the base material is held by ballast, it can be: pebbles, concrete blocks, gravel. The construction of such a roof is carried out using high-quality waterproofing, since repairs are complicated by dismantling the ballast.
Mounting can be mechanical. It is recommended in cases where it is impossible to use the above technique. For fixing on a profile sheet, a plastic sleeve with a self-tapping screw is used. If the base is concrete, then a dowel-nail and a sleeve are used. This installation method is standard and closed. The latter is relevant if it is necessary to distribute the mount on the plane as evenly as possible. This is justified even with high wind loads, as well as in the case when the roll is secured in the direction along the profiled sheet.
The standard method of mechanical fastening involves welding edges with hot air to form a wide, homogeneous seam. This method is quick and economical, therefore, it is excellent for the construction of prefabricated buildings, for example, when the construction of storage facilities, hypermarkets and other commercial facilities.
The system can be completely glued. This method involves the installation of membrane sheets with fastening to the base with special glue. You can use this technology for roofs with an impressive slope, for example, at the attic or dome. The glue system can also be used when there is a threat of wind loads.
The membrane is also laid according to the rake system in the seam. In this case, the sheets are fastened mechanically with the help of rails, which are placed in the middle of the seams. They adjoin one another. In this method, the thermal insulation boards are attached to the base separately from the membrane, as in the case when the method of mechanically fixed system is used. In this case, a traditional or reinforced membrane may be used. This system is relevant for a roof with a non-standard configuration and for those cases when there are high wind loads.
The use of thermal insulation is provided for the inversion method. Thermal protection must not absorb moisture. This method is one of the options for a ballast system, well suited for parking equipment or a sports field, as well as for arranging a green roof. The mount can also be vacuum. It is based on creating a vacuum between the roofing space. This is done using aerators with valves, while the membrane is mechanically attached along the parapets. Such a system is applicable for old bitumen roofs.