JX110 Thermoplastic Polyolefin (TPO) Waterproof Membrane is manufactured through advanced polymerization by copolymerizing EPDM rubber and polypropylene. The membrane combines the weather resistance of EPDM rubber and the weldability of polypropylene, integrating advantages of rubber and plastic polymer membranes. It is a high‑performance new eco‑friendly waterproof material featuring excellent anti‑aging property, easy installation and zero pollution.

Scope of Application

‑Homogeneous Type (H): Suitable for general industrial & civil buildings and various infrastructure projects; ‑Reinforced Type (P): Suitable for all kinds of single‑ply roofs and exposed roofs, such as color coated steel, profiled metal sheeting roofs, factory roofs, large stadium roofs, grain depots, etc; ‑Fiberglass Backing Type (L): Suitable for fully‑adhered or mechanically fastened systems on concrete substrates for industrial, civil and public buildings;

Product Specifications

Performance Standard

《Thermoplastic Polyolefin (TPO) Waterproof Membrane 》GB27789‑2011

Product Features

‑Free from chlorinated polymer or chlorine. No chlorine emission during welding and service life. Recyclable, no construction waste generated, non‑toxic, harmless, pollution‑free and eco‑friendly; ‑Possesses outstanding weather resistance & durability of EPDM rubber plus weldability of polypropylene. Seams can be directly heat‑welded for solid and tight joints, and compatible with other polyolefin materials for welding; ‑No plasticizer added. Great anti‑aging performance, stable properties under direct exposure and long service life; ‑Excellent weather resistance, suitable for all regions; ‑Superior tensile property, fatigue resistance and puncture resistance; ‑Good oil resistance, solvent resistance and chemical corrosion resistance, resisting algae, mould and other microorganism growth.

Construction Process

Mechanical Fastening (For Single‑ply Exposed Roofs)

Vapor barrier laying ➔ Insulation fixing ➔ Substrate treatment ➔ Pre‑lay waterproof membrane ➔ Fasten waterproof membrane ➔ Heat‑weld membrane lap seams ➔ Self‑inspection & acceptance ➔ Handover of working surface

Fully‑adhered Installation (For Concrete Substrates)

Substrate treatment ➔ Mark reference lines for membrane laying ➔ Pre‑lay waterproof membrane ➔ Apply adhesive ➔ Rolling & venting ➔ Heat‑weld membrane lap seams ➔ Self‑inspection & acceptance ➔ Handover of working surface

Construction Method

Key Points for Mechanically Fastened System

1. Substrate Treatment: Substrate must be flat, dry, hollow‑free, no sand, cracks, ponding or debris.

2. Pre‑laying Membrane: Lay membrane at designated position, keep flat and straight without twisting or stretching.

3. Lap Fastening: Fasten lower sheet of laps with dedicated fasteners. Fastener spacing follows relevant codes and shall not exceed 600 mm. Fasten TPO membrane within 800 mm from roof perimeter. Fasten membrane around curve surface, parapets, skylights, expansion joints, internal corners wider than 1/6 and all pipe & sealant grooves.

4. Hot Air Welding: Use automatic hot air welder or hand‑held hot air gun plus rubber roller for TPO membrane welding.

Key Points for Fully‑adhered System

1. Substrate requirement: Same as above.

2. Adhesive Coating: Adhesive can be applied to substrate or bottom of TPO membrane. Apply evenly without bare spots or excessive accumulation. Strip bonding, dot bonding or loose‑laid is also acceptable.

3. Hot Air Welding: Weld lap seams. Weld long‑side laps first, then short‑side laps.

Welding Tools

Transportation & Storage

Membranes shall be stored in well‑ventilated areas away from sunlight and rain. Storage temperature ≤45℃. Store different types and specifications separately. Flat stacking height shall not exceed 5 layers; vertical storage shall be single layer. Keep away from acids, alkalis, oils and organic solvents. Prevent tilting or compression during transportation; cover with tarpaulin if needed. Under proper storage conditions, shelf life is at least 1 year.