What is TPO waterproof membrane?

TPO waterproof membrane -- Thermoplastic polyolefin TPO waterproof membrane (referred to as TPO waterproofing membrane) is made of ethylene propylene (EP) TPO that combines the weather resistance and heat resistance of rubber with the weldability of polypropylene Made from resin as the base material. Due to its weather resistance of EPDM rubber and its plasticity, The weldability, reliable waterproof effect, and outstanding aging resistance of the waterproof roll material are excellent, therefore Rapid development. In recent years, with the development of mechanically fixed single-layer roof systems, high performance.The TPO waterproofing membrane, which has energy-saving and environmentally friendly effects, has shown a rapid development trend.

What are the basic features of TPO waterproof membrane?

▪ Advanced polymerization technology is used to combine ethylene propylene rubber and polypropylene, combining the excellent weather resistance of ethylene propylene rubber with the weldability of polypropylene.

▪ Special formula technology, without the need to add any plasticizers that can easily make the material brittle, does not produce the phenomenon of general hot welding coils (such as PVC) becoming brittle due to plasticizer migration, and maintains long-term waterproof function.

▪ Excellent high and low temperature resistance, similar to rubber materials, maintains flexibility at around 50 ℃ and mechanical strength at higher temperatures.

▪ Chemical resistance, acid, alkali, salt, animal oil, vegetable oil, lubricating oil corrosion, resistance to microbial growth such as algae and mold.

▪ It has excellent root puncture resistance and can be used as a root puncture resistant roll material for planting roofs.

▪ Heat resistant aging, good dimensional stability.

▪ A light colored surface with white as the main color, smooth surface, high reflectivity, energy-saving effect and pollution resistance.

▪ The lap joint adopts hot welding construction, which can form a high-strength and reliable sealing waterproof layer.

▪ The enhanced TPO waterproofing membrane is sandwiched with a layer of polyester fiber fabric in the middle, providing the membrane with high tensile performance, high tear strength, fatigue resistance, and puncture resistance, making it more suitable for mechanical fixation Roof system.

▪ The fabric on the lower surface of the TPO waterproofing membrane with backing makes it easier to bond with the base layer.

▪ Homogeneous TPO waterproofing membrane has good plasticity and can be processed into various shapes after heating to adapt to complex nodes.

What is TPO waterproof membrane used for?

▪ Generally used for waterproofing in industrial and civil buildings.

▪ Suitable for waterproofing of various underground engineering upstream surfaces.

▪ Waterproofing of municipal projects such as bridges, roads, parking lots, subways, and tunnels.

Technical Data Sheet

Thermoplastic polyolefin (TPO) waterproofing membrane meets the GB27789-2011 standard, with its main physical and mechanical properties

Construction technology

Grassroots treatment

▪ The grassroots must be flat, dry, clean, and free from hollowing, sanding, cracking, and other phenomena. Water, ice, or snow must be removed to prevent moisture absorption in the new roof and layer systems.Before laying the roll material, remove debris and foreign objects from the base layer.

▪ Pre laying of TPO waterproof membrane: Lay the coil in the predetermined position, and the coil should Smooth and straight, do not stretch the coil with force.

▪ Fix the coil with fasteners, and the center spacing of the fasteners is determined by the local wind speed and structural foundation.The type of layer, height of the building, and width of the roll material are determined and should not exceed 600mm. The TPO roll material within 800mm of the surrounding area should be fully adhered.

▪ In addition, at every change in roof height, protruding edge walls, skylights, and deformation joints. Surrounding all changes in the internal corners of the base layer with a slope greater than 1/6, as well as all pipelines and pouring densities. At the sealing groove, it is required to fix the coil material.

Hot air welding:

▪ Using an automatic hot air welding machine or a handheld hot air welding machine, as well as silicone rubber rollers, Weld TPO waterproof membrane with hot air. At the intersection of all seams, use a silicone roller to roll the seams Ensure continuous welding of hot air welds. The surface irregularity caused by the multi-layer thickness of TPO coil material, May cause false welding.

Key points for construction of fully adhesive system

▪ The base layer adhesive can be applied evenly to the base layer or to the bottom surface of the TPO roll material, No exposed bottom, no stacking (can also be done with strip adhesive, dot adhesive or empty paving).

▪ The overlapping area is constructed using welding method. Weld the long edge lap joint first, and then weld the short edge lap joint Sewing.

▪ The bonding method is applicable to various types of buildings with cement concrete base. Construction technology and key works Sequence, similar to various polymer waterproofing membranes bonded with adhesives.

Packing, transportation and storage

1. The product is packaged by paper or plastic tape into rolls.
2. Preventing the sun and rain during transportation. Prohibit of approaching fire source, prevent collision, and protect the package in good condition.
3. The products should be sealed in the warehouse, stored in a ventilated and cool place, and prohibited from approaching the fire source.
4. Under normal storage and transportation condition.

FAQ

1.Are you a factory or trading company? Where is your company located?

We are a professional manufacturer that specialized in geomembrane, geotextile, composite geomembrane, geocell, geogrid etc. with lS09001 certificate more than 20 years.

2.Can you provide a sample for us?

Yes, we can send free samples, but customer need to pay the freight.

3.Can you do OEM?

Yes, we can produce the products as your request.

4.What is your payment terms?

T/T, Western Union, Paypal, L/C…

5.What is your delivery time?

Production time usually costs 2-20 days based on the order.

6.Where is your factory located? How can l visit there?

Welcome to visit our factory and it is our great pleasure. Our factory is located is Dezhou City , Shandong Province.

7.What's your MOQ? Can l order small quantity for testing at first order?

For new client, we accept small order for building mutual trust and long-term business relationship.

If you have any further questions, please do not hesitate to contact us.