In the early 1990s, mechanically fixed paving was used in roof waterproofing projects. Because it not only has the weather resistance of EPDM rubber, but also has the weldability of plastic waterproofing membrane, the waterproof effect is reliable, and the aging resistance is outstanding, so it has developed rapidly. With its excellent physical and chemical properties and performance, the coil has become the fastest growing waterproof material in the world today. In the United States, TPO waterproofing membranes have accounted for 30% of the American low-slope commercial roofing material market, and maintained an annual growth rate of more than 25%. In recent years, with the development of mechanical single-layer roofing systems, high-performance, energy-saving and effective TPO roofing membranes have also shown a rapid development momentum in China.
Product Spec.:
|
Product Name |
Waterproofing Membrane |
Standard |
GB27789-2011 |
|
Thicknesses |
1.2mm, 1.5mm, 2mm | ||
|
Roll Size |
2M*20M/roll | ||
Data Sheet:
No. Test Item Index H L P 1 TPO Thickness 0.4mm 2 Strength Max peeling strength (N/cm) - 200 250 Tensile Strength (MPA) 12.0 - - tensile elongation (%) - - 15 Breaking elongation (%) 500 250 - 3 Heat treatment size change rate(%) < 2.0 1.0 0.5 4 Low temperature bending -40℃ no cracking 5 Waterproofing 0.3MPA, 2hours Impermeable 6 Impact resistance 0.5KG.m, Impermeable 7 Static loading 20KG 8 Peeling Strength (N/cm) 4.0 3.0 3.0 9 Tearing strength (N/cm) 60 250 450 10 Water absorption(70℃, 168h, %) < 4.0 11 Heat aging 115℃ Time(H) 672 Outlook No bubble, cracking, hole, etc Max peeling strength remain 90% 90% 90% elongation (%) 90% 90% 90% Low temperature bending -40℃ no cracking 12 Chemical Resistance Outlook No bubble, cracking, hole, etc Max peeling strength remain 90% 90% 90% elongation (%) 90% 90% 90% Low temperature bending -40℃ no cracking 13 Anti-Aging Time(H) 1500 Outlook No bubble, cracking, hole, etc Max peeling strength remain 90% 90% 90% elongation (%) 90% 90% 90% Low temperature bending -40℃ no cracking
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Main advantages:
1. Long service life, aging resistance, TPO roofing materials can be used for more than 20 years, underground can be up to 50 years.
2. High tensile strength, high elongation, small change in heat treatment size.
3. Good flexibility at low temperature, adapt to small changes in environmental temperature.
4. Good root penetration resistance and can be made into planting roofs.
5. Good perforation resistance and impact resistance.
6. Convenient construction, less wide lap joints, weldable, firm and reliable.
7. Strong chemical resistance, suitable for special occasions.
8. It has good plasticity, and it is convenient and quick to handle the details of the corners.
9. Convenient maintenance and low cost.
10. The light-colored surface reflects ultraviolet radiation; the surface of the coil absorbs less heat and the temperature is low.
11. The coil has good water vapor diffusivity, the condensate is easy to release, and the moisture and moisture remaining in the base layer are easy to discharge.
Applications:
TPO membranes are Suitable for roof waterproofing of industrial and civil buildings, including planted roofs, flat roofs, sloped houses;
underground waterproofing of buildings: waterproofing of reservoirs, pools, canals and basements; tunnels, grain depots, civil air defense projects, landfills, artificial Lake and other waterproofing.
Installation Instructions
Combined with the characteristics of TPO sheet membrane rolls, cold bonding, empty laying, mechanical fixing and sometimes a unique hot air welding process are used. Complicated waterproof construction parts should be specially matched. TPO special accessories combined construction.
Cold bonding method: The construction method of using a special adhesive for TPO coils to paste the coils on the base layer by cold work is called cold bonding. According to different waterproof design requirements, the cold bonding method can be divided into full bonding or partial bonding.
(1) The full adhesion method is a construction method in which all TPO coils are bonded to the base layer.
1) During construction, pre-laying is required first, and the TPO coil is naturally laid flat on the surface of the base layer (not bonded first), and it is required to be smooth and straight without distortion.
2) The longitudinal lap width of the coil is 50mm, and it should be cut appropriately. The horizontal butt joint is used, and a 200-250mm wide non-composite layer (Type N) is used on it. TPO coil covers lap welding.
3) Fold the long side of one or more webs in half (about 10m), and apply special adhesive on the base layer and the surface of the web from the folded place. When the glue is dry to the point where it does not stick to your hands, place the pre-laid web surface For folding and pasting, compact it with a pressing roller. Then fold the other unfolded parts, continue to operate from the fold as described above, and then paste firmly and compactly. Finally, the butt joint welding construction is carried out.
(2) Partially paste the coil. When paving the TPO coil, the coil and the base layer are pasted on the base layer by point or strip bonding.
1) Point sticking: Point-like sticking between the coil and the base layer. No less than 5 points are bonded per square meter, and the area of each point is 100mm×100mm.
2) Strip sticking: The coil is glued to the base layer in strips. There are no less than two bonding surfaces between each web and the base layer, and each width is no less than 150mm.
DERFLEX is one of the leading manufacturers in China with independent production capacity. Now the company mainly focusing on waterproof materials: polyester tires, geotextiles, polyester fabrics, colored asphalt shingles, geomembranes, composite waterproof coatings, polymer elastic polyurethane waterproof coatings, acrylic waterproof coatings, SBS, APP modification Asphalt waterproof membrane and waterproof linoleum, etc. At the same time operating various waterproof raw materials and various waterproof material production equipment.
The company's SBS and APP modified asphalt series TPO waterproofing membranes have excellent performance, long service life, wide application range, safety, simplicity, high temperature resistance at 90°C without flowing, and low temperature at -25°C without brittleness. It can be applied to the waterproofing of industrial and civil buildings, basements, bridges, parking lots, roofs, gardens, swimming pools, reservoirs, tunnels and other projects. This product has good low temperature flexibility and elastic extensibility, which is especially suitable for buildings in alpine areas.
