Comfortboard 80 vs Haochen 140 kg/m³ Basalt Rock Wool Board: Performance & Price Comparison

Published: 2026-11-03

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Rockwool is a globally renowned rock wool brand. Overseas engineering clients are very familiar with its Comfortboard 80, a thermal insulation product for exterior walls and curtain walls. However, many of them know little about Haochen rock wool boards. Haochen Insulation is a professional rock wool manufacturer from China. It has low brand awareness overseas and cannot match Rockwool in terms of production capacity, product certifications and global influence. Haochen focuses on strict product quality control and cost‑performance, and is steadily developing its overseas market for exterior wall and curtain wall insulation. Below we objectively compare the two products from three dimensions: product parameters, production strength and purchase price, to provide references for exterior wall and curtain wall project selection.

Gap comparison between Comfortboard 80 and Haochen 140kg/m³ basalt rock wool board for exterior and curtain wall

1. Product Parameter Comparison

Comparison Item	Rockwool Comfortboard 80	Haochen 140 kg/m³ Basalt Rock Wool Board for Exterior Walls
Actual Density	128 kg/m³	140 kg/m³
Basalt Raw Material Ratio	Not publicly disclosed	75‑85%
Fire Rating	Class A1 non‑combustible, no flame spread, no toxic fumes	Class A1 non‑combustible, no molten dripping when exposed to fire
Compressive Strength (10% deformation)	21 kPa	≥24 kPa, higher compressive strength, suitable for heavy curtain wall cladding
Thickness Range	25.4‑127 mm	30‑150 mm
Thermal Conductivity	0.037‑0.038 W/(m·K)	≤0.038 W/(m·K)
Water Repellency Rate	Water repellent, anti‑fungal	≥98%
NRC Sound Absorption	0.9	≥0.9, excellent noise reduction for cavity of exterior walls and curtain walls
Main Application Scenarios	Exterior walls, rainscreen curtain walls	Exterior walls, rainscreen curtain walls, curtain wall cavity fire filling, peripheral protection of high‑rise commercial buildings
Applicable Standard	ASTM C612	GB/T 25975‑2016

Parameter Interpretation

Both products are in the same performance tier in core indicators including fire resistance, thermal conductivity and sound absorption. Haochen 140 kg/m³ rock wool board features higher density and better compressive performance than Comfortboard 80. It offers greater safety margin when used with heavy cladding such as stone and metal panels. The basalt content is clearly defined for stable fibre performance. The maximum thickness reaches 150 mm to meet the demand for thick insulation on exterior walls and curtain walls. Comfortboard 80 is tested in accordance with ASTM C612; Haochen rock wool complies with GB/T 25975‑2016 and third‑party test reports are available.

2. Production Strength Comparison

Rockwool Comfortboard 80

Rockwool has decades of experience in rock wool R&D and manufacturing with production bases across the globe and strong brand influence. It owns professional in‑house material laboratories. The products have undergone extensive system tests. Comfortboard 80 comes with complete overseas certifications and abundant real project cases for exterior walls and curtain walls worldwide. The production process is mature, and batch stability has been verified by long‑term market application. This product is mainly developed for the North American market. Lead times are longer for shipments to other regions, and stock is unavailable in many areas.

Haochen 140 kg/m³ Basalt Rock Wool Board /rock-wool-board/rock wool boards

Haochen is a Chinese source manufacturer specialising in export‑oriented basalt rock wool, focusing on high‑density rock wool for exterior walls and curtain walls. Automated production lines are adopted to stably control the basalt raw material ratio. Custom deep processing such as cutting and aluminium foil facing is supported. The factory carries out batch inspection on density, compressive strength, water repellency, thermal conductivity, fire resistance and other indicators strictly following GB/T 25975‑2016, and third‑party test reports can be issued. Flexible order acceptance covers small trial orders and full‑container bulk shipments with controllable delivery cycles. Its disadvantage lies in fewer overseas system certifications and overseas project cases compared with Rockwool.

Summary of Production Strength

Rockwool’s core advantages are global R&D system, complete overseas certifications and rich overseas project experience. Haochen’s strengths lie in flexible customisation, controllable lead times and dedicated production of high‑density rock wool for exterior walls and curtain walls.

3. Price Comparison

Rockwool Comfortboard 80As a standard product of an international brand, it carries brand premium. Combined with costs for certification, warehousing and cross‑border logistics, its overall procurement cost is relatively high. It suits projects where tender documents specify an international brand and require full original overseas certification reports.

Haochen 140 kg/m³ Basalt Rock Wool BoardSupplied directly from the factory without multi‑layer dealer markups. It delivers prominent cost advantages for bulk export orders. It is suitable for large exterior wall and curtain wall projects where cost control is required and GB standard third‑party test reports are acceptable.

Project Selection Guide

If the project specifies an international brand and requires full original overseas certification reports such as ASTM, Comfortboard 80 is preferred.
For exterior wall and rainscreen curtain wall projects where high basalt content, superior compressive performance and cost control are priorities, Haochen 140 kg/m³ basalt rock wool can be adopted as a performance alternative.

Basalt Rock Wool Board for Ext

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