1. Product Overview
Thermoplastic polyolefin (TPO) membrane is a type of polymer
waterproof material based on polypropylene(PP) and rubber,
processed by using unique formula and advanced technique.
It can be recycled throughout its service lifetime.
It doesn't contain any chlorine, heavy metal nor elements
harmful to the plant roots and it is environmental friendly.
According to the different reinforcement, the TPO waterproof membrane can be divided into 4 types:
G type (DYP-820): Membrane reinforced by Glass fiber as the inner layer;
P type (DYP-821): Membrane reinforced by polyester fiber as the inner layer;
H type (DYP-822): Homogeneous Membrane. Pure TPO membrane without reinforcement;
L type (DYP-823): Membrane reinforced by no-woven fabric as backing layer;
Different types of construction roof (exposed roof, plant roof, steel roof,)
Basement, tunnel, barn,metro,reservoir,etc.
Especially suitable for roof-gardening for its high resistance to roof puncture.
1)Excellent weather resistance, aging resistance, tensile strength and elongation.
2)Operation can be done on wet substrate. Directly expose to the weather conditions without any protective layer. 3)Easy operation. No contamination.
4)Re-welding is operable.
5)White color TPO enhances the reflection of sun rays.
6)Capable of resisting the growth of mould and alga.
Executive Standard: GB27789-2011
Thickness Above Scrim
Max.Tensile strength, (N/cm)≥
Tensile Strength, MPa≥
Elongation at max. tensile strength. %≥
Elongation at break, %≥
Dimensional change after heat treatment, %≤
Flexibility at low temperature
-40℃, no cracking
0.3MPa, 2h, water tight
Lap seam peeling strength
4.0 or membrane breakage
Right-angled tear strength
Trapezoid tear strength
5.Construction procedure scheme:
Construction procedure scheme: （see the sketch map→)
1.Substrate treatment –2.Paving vapor barrier –3.Fastening insulating layer– ④Paving waterproof membrane – ⑤Fastening waterproof membrane – ⑥Hot gas welding waterproof membrane.
Construction methods:Full-adhibiting Method
Construction procedure scheme:
1.Substrate treatment–2.Snap lines for alignment –3.Paving waterproof membrane–④Paint adhesive–⑤Rolling to exhaust gas-⑥Hot gas welding waterproof membrane
Construction Attentions: At welding, clean the welding area, no water, no oil and no contamination is allowed.Before a formal welding, testing welding shall be carried out, to confirm the welding temperature and speed.
Flat-wise storage ,the stack height should not be more than 5 layers,
Up-right storage, the stack height should not be more than 2 layers.
It is prohibited to contact with acid, alkali, oil and organic solvents.
Storage temperature should not exceed 45℃, shelf-life is not more than one year.