Reflective Mylar

The House Dress Jinbo Reflective mylar, supplied directly from Xia's Packing's original factory, is manufactured using a composite spunbond polypropylene substrate with high-purity, low-radiation aluminum foil. It combines two core functions: high reflectivity mylar and complete vapor barrier performance. Unlike conventional single-layer vapor barriers or PE plastic films that only block moisture, this film reduces heat loss at the source of radiant transfer.Unlike scattered third-party suppliers, we hold large ready stock of standard reflective mylar rolls to shorten your lead time for medium and large construction projects, avoiding material shortages during construction cycles.

Working Principle of the Reflective mylar

Principle of outdoor heat insulation in summer conditions

Sunlight and infrared radiation generate high temperatures on roofs and exterior walls; conventional insulation films directly conduct heat inward, whereas Jinbo reflective film's aluminum foil layer reflects over 95% of infrared thermal radiation, significantly reducing heat absorption by the insulation layer and substantially lowering indoor air conditioning loads.

Principles of heat retention in indoor spaces during winter

Indoor heating generates long-wave radiant heat, which is transmitted through the insulation layer without any reflective coating; the aluminum foil low-radiation layer reflects indoor heat back into the space, reducing thermal bridge losses and addressing significant heat loss from metal roofs and window frames.

Principle of coordinated bidirectional equilibrium between water vapor and other substances

The reflective film is applied on the indoor side, with an extremely low water vapor permeability to prevent indoor moisture from penetrating the insulation layer; the exterior side is equipped with Jinbo waterproof and breathable membrane to discharge residual moisture from the wall. This dual-layer design ensures both barrier and ventilation effects, effectively preventing moisture-induced mold growth and thermal performance degradation in the insulation layer.

Specification

All above performance test reports can be provided for your tender bidding, customs clearance and supplier qualification review. We support mixed container loading with our breathable membrane, window sealing tape and other roof energy-saving accessories to cut your overall logistics cost for bulk orders.

Comparison before and after actual engineering application

Case: BASF's steel structure production facility in Zhanjiang (located in a coastal region of South China with high temperature and humidity, featuring a metal vertical lock-seam roof)

Before construction begins

Temperature data: At noon in summer, the surface temperature of the roof steel plate is 62.7°C; the constant-temperature zone inside the factory building is 37.6°C, with the air conditioning operating at full load for 24 hours. In winter, the inner wall of the thermal bridge within the window frame reaches only 9.1°C, and condensation occurs continuously under a indoor humidity of 55%.

Energy consumption analysis shows that the monthly comprehensive electricity cost for air conditioning and heating in the factory is 57,600 yuan, with roof thermal radiation losses accounting for 38.2% of total energy consumption.

Structural damage: The moisture content of thermal insulation rock wool under prolonged exposure to humidity is 27.3%, resulting in a 41% decrease in thermal resistance; annual costs for roof and window edge rust removal repairs amount to approximately 21,000 RMB.

Air tightness: 50 Pa; Air change rate under pressure differential: 3.51 h⁻¹; Significant air leakage due to thermal and convective effects.

After construction

Temperature control: During summer, the roof surface temperature decreases to 21.3°C, while the workshop remains stable at 30.2°C; in winter, the inner wall of window frames is maintained at 16.8°C, ensuring no condensation or water dripping throughout the year.

The monthly comprehensive electricity cost was reduced to ¥34,600 due to energy-saving measures, with overall energy consumption decreased by 39.9% – matching the official 40% energy-saving target set by NIST.

The moisture content of the structural durability insulation layer remains stable at ≤6.8%. After three years of service, no wall mold or steel plate corrosion occurs, with annual maintenance costs reduced to zero.

Air tightness improved by 50 Pa; air change rate: 0.76 h⁻¹, meeting ultra-low energy consumption building standards.

Why choose the House Dress Jinbo Reflective Mylar?

Complete original factory-system configuration with 100% performance compatibility with Xiong 'an Xia's solutions. Established in 1984, the company has independently developed and manufactured the entire industrial chain for architectural cladding films, ensuring seamless synergy between reflective films, vapor-permeable films, and window opening tapes—eliminating compatibility issues between different brands and joint leakage problems. This provides a comprehensive one-stop solution for energy-efficient roof and wall systems.

With over 30 years of hands-on engineering experience both domestically and internationally, the company has specialized in European and American exports for more than a decade, having participated in projects for BASF, Starbucks, sports stadiums, Xiong'an green residential complexes, and thousands of public and industrial facilities. It has optimized formulations to address key challenges such as metal roofs, thermal bridges in passive houses, and coastal salt spray conditions, effectively overcoming common issues with conventional aluminum foil films—including easy aluminum detachment, cracking at low temperatures, and reduced reflectivity.

We adopt flexible custom production to meet all bulk procurement demands: custom width, thickness and roll length are all supported, while standard-size rolls are kept in large stock for fast shipment. For wholesale distributors and mega industrial construction projects, we arrange priority expedited production schedules. Every bulk order comes with full construction blueprints, technical parameter handbooks and tender supporting documents to simplify your project bidding work.

Comprehensive after-sales support documentation covering the entire process, including all required acceptance qualifications (testing reports, patents, certificates of conformity); the product has passed long-term aging simulation tests, with an extended project warranty period. Any issues such as leakage at critical points or material performance defects will be resolved on-site by engineers.

If you are a building material wholesaler, passive house contractor or industrial park project purchaser looking for stable long-term bulk supply, contact us to get free samples, full test document packs and exclusive bulk wholesale pricing.