Glass Wool Rigid Board

Glass wool rigid board is a high-density insulation board made of fine glass fibers bonded with thermosetting resin. Unlike flexible insulation rolls, its robust structure gives it significant compressive strength, thermal conductivity, non-combustibility, and sound insulation properties. It is also self-supporting and can withstand mechanical stress.

The structural integrity of our glass wool rigid board makes it the preferred solution for a variety of specialized applications. It is widely used in exterior wall insulation systems (EIFS), where it serves as a solid substrate for plaster and other finishes. In commercial roofing, it provides a stable and durable insulation layer under waterproofing membranes, supporting foot traffic and equipment loads. The board is also highly effective for insulating floors, HVAC plenums, and large industrial vessels where a non-sagging, robust insulation panel is essential.

Each glass wool rigid board is manufactured at our Langfang Henggang facility on dedicated production lines that are optimized for consistency. Our automated batching and curing process, governed by our ISO9001 quality management system, ensures uniform density, thickness, and mechanical properties across every order. Understanding the diverse needs of our wholesale partners, we offer extensive customization options. We can produce boards to your exact specifications for density (to meet specific compressive strength needs), dimensions (to reduce on-site waste), and facings, such as aluminum foil or glass tissue, to add vapor barriers or enhance surface durability.

Q1: What is the main difference between your glass wool rigid board and a standard glass wool blanket?
A1: The primary difference is density and compressive strength. Our rigid board is manufactured to a higher density, which makes it firm, self-supporting, and able to withstand pressure. This is in contrast to flexible blankets, which are designed to fit in cavities and have minimal load-bearing capacity.

Q2: Can the rigid board be used in applications exposed to moisture?
A2: Glass wool is inherently moisture-resistant and will not support mold growth. However, for optimal thermal performance, the board should be protected from direct, prolonged water exposure by a weather-resistant barrier or cladding system.

Q3: What facing options are available for the glass wool rigid board?
A3: We offer several facing options, including FSK (Foil-Scrim-Kraft), aluminum foil (Alu), and black glass tissue (BGT). These can enhance vapor control, thermal radiation, and aesthetic appearance. We can discuss the best option for your specific application.

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