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EVA Waterproof Membrane

Updated: 2026-08-04

Overview

EVA coated waterproof membrane is a composite material made from ethylene-vinyl acetate (EVA) and a waterproof layer. It is widely recognized for its excellent waterproofing properties and flexibility, making it a preferred choice for construction projects. The material is lightweight, easy to install, and resistant to environmental factors such as UV rays and temperature fluctuations. EVA membranes are manufactured in rolls, allowing for seamless application over large surfaces. They are commonly used in both residential and commercial construction, particularly in areas prone to water exposure. The material's durability and long service life make it a cost-effective solution for waterproofing needs.

Physical and Chemical Properties

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EVA coated waterproof membrane exhibits a range of physical and chemical properties that contribute to its effectiveness. The material is highly flexible, allowing it to conform to irregular surfaces without cracking. It has a density of approximately 0.93-0.95 g/cm³ and a melting point between 70-90°C, making it suitable for various climates. Chemically, EVA is resistant to water, alkalis, and weak acids, ensuring long-term performance in harsh environments. The material is also UV resistant, which prevents degradation when exposed to sunlight. These properties make EVA membranes ideal for outdoor applications where durability and weather resistance are critical.

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Main Applications

EVA coated waterproof membrane is primarily used in construction for waterproofing applications. It is commonly applied to roofs, basements, and tunnels to prevent water infiltration. The material's flexibility and ease of installation make it suitable for complex geometries and large surface areas. In addition to construction, EVA membranes are used in pond liners, swimming pools, and other water containment systems. Their resistance to chemicals and UV rays ensures reliable performance in these applications. The material is also used in temporary structures and emergency shelters due to its quick deployment and durability.

Safety and Storage

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EVA coated waterproof membrane is generally safe to handle, as it is non-toxic and does not emit harmful fumes under normal conditions. However, precautions should be taken during welding or high-temperature exposure to avoid inhalation of fumes. Proper ventilation is recommended in enclosed spaces. Storage conditions are critical to maintaining the material's integrity. EVA membranes should be stored in a cool, dry place away from direct sunlight and extreme temperatures. Rolls should be kept flat or upright to prevent deformation. Proper storage ensures the material remains in optimal condition for use.

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B2B Procurement Guide

When procuring EVA coated waterproof membrane, B2B buyers should consider several factors to ensure quality and suitability for their projects. Key specifications include thickness, tensile strength, and UV resistance, which vary depending on the application. Buyers should request product certifications and test reports to verify performance claims. Price is another important consideration, with costs typically ranging from $1.50 to $3.00 per square meter. Bulk purchases may qualify for discounts, so buyers should negotiate with suppliers for favorable terms. Additionally, buyers should evaluate supplier reliability, lead times, and after-sales support to ensure smooth procurement and project execution.

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