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PIR Single-Ply Waterproof Roofing Membrane
Polyisocyanurate (PIR) insulation material,compared to traditional polyurethane (PUR),undergoes fundamental molecular structural changes.It has undergone comprehensive upgrades in formulation, process,equipment,and performance, resulting in significant performance improvements.
Based on PIR insulation materials,we have developed an integrated PIR roofing insulation and waterproofing application system:a single-ply waterproof roofing membrane system.This unique system consists of,from bottom to top,a structural layer,a vapor barrier,an insulation layer,a cover layer,and a waterproof layer.The waterproof layer is typically constructed using high-performance,exposed waterproof membrane.
Four major technological breakthroughs
◆ Simple overall structure,requiring only one waterproof layer to meet waterproofing regulations;
◆ Single-layer waterproof membrane roofing provides excellent integrity and superior waterproofing performance.The high-performance exposed waterproof membrane's excellent durability and aging resistance ensures a roofing service life of up to 30 years;
◆ Simple system construction and low deadweight load reduce demands on building structural components;
◆ Construction is more convenient than other systems, significantly shortening construction schedules.
Typical Application Scenarios
Sinar Mas Group's APP Annual Production of 780,000 Tons of High-End Household Paper Project
With a total investment of 12 billion yuan in the first phase,it is currently the largest single investment in a tissue machine project in China.With an annual production capacity of 780,000 tons,it will become the world's largest single household paper production base.The roof utilizes 70 mm thick PIR insulation board.
Sinar Mas Group APP's annual production of 780,000 tons of high-end household paper project
Changsha Huizhi New City Excavator Intelligent Manufacturing Park Construction Project
A "No. 1 Project" of the Changsha Municipal Government's industrial project,the project is planned and designed to the highest global standards and was awarded the 2022 "Golden Yu Award." The roof utilizes PIR insulation board,fiberglass-covered lightweight gypsum board,and a TPO electromagnetic induction non-perforated system.
Changsha Huizhi New City Excavator Intelligent Manufacturing Park Construction Project
Applications include various types of domestic industrial plants,including pharmaceutical plants,paper mills, instrument factories,and machinery manufacturers.
Domestic entertainment and cold chain logistics projects
Foreign industrial plants and large public construction projects
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Other Products
PIR spray-applied thermal insulation and waterproofing integrated roof
Performance Features
◆ Excellent waterproofing,can replace a single waterproofing layer;
◆ The insulation layer is continuous and seamless,ensuring excellent integrity;
◆ Excellent adhesion,ensuring full adhesion without cavities;
◆ High construction efficiency,making it easy to handle complex facades.
PIR permanent roof
Performance Features
◆ Separate waterproofing compartments eliminate water leakage risks;
◆ Excellent integrity and excellent waterproofing performance;
◆ Simple maintenance and easy identification of leaks;
◆ PIR can be used for slope leveling,reducing the number of steps required.
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Core Performance Advantages of PIR Insulation Materials
Fire Resistance
In terms of fire safety, PIR achieves Class B1 combustion performance.As a thermoset insulation material,PIR offers far superior fire protection compared to thermoplastic insulation.Fire tests were conducted based on the national standard GB/T 30735-2014.The TPO+PIR structure burned slightly after exposure to fire,but the flames extinguished after a period of time due to the material's excellent flame retardancy.The damaged area of the TPO+PIR structure was very similar to that of the TPO+rockwool structure.However, the TPO+XPS roof structure burned very violently,necessitating forced fire extinguishing mid-experiment to ensure the safety of laboratory equipment and personnel.This further demonstrates that, in practical applications, PIR's fire protection effectiveness far outperforms XPS and is very close to that of inorganic materials.
System Advantages
In industrial plants, the traditional approach is to use a double-layer steel plate sandwiched with rockwool (glass wool) system.The single-layer PIR waterproof membrane roofing system offers significant performance advantages over double-layer steel plate systems.In terms of project cost,PIR single-layer waterproof membrane roofing also has a price competitive advantage.The comprehensive cost of the system is approximately between 200 and 220 yuan/㎡,which is basically the same as the cost of double-layer steel plate metal roofing system and rock wool single-layer roofing system.
