---
title: "FM Approved Class 4470 Stone Wool Roof Board | Hardroof 180 Alternative"
description: "FM Approved Class 4470 Hardroof 180 mineral wool roof board, RoofNav listed. A1 non-combustible per EN 13501-1 + GB 8624. Direct China-factory pricing, 30-50% below European brands. We do not currently hold ASTM C612 / E84 — see honest disclosure on page."
url: "https://stenvak.com/en/applications/commercial-roof"
source: "Generated from messages/en.json meta + SSOT — do not edit by hand."
---

# FM Approved Class 4470 Stone Wool Roof Board | Hardroof 180 Alternative

FM Approved Class 4470 Hardroof 180 mineral wool roof board, RoofNav listed. A1 non-combustible per EN 13501-1 + GB 8624. Direct China-factory pricing, 30-50% below European brands. We do not currently hold ASTM C612 / E84 — see honest disclosure on page.

> Stenvak distributes Taishi® Rock Wool insulation to B2B buyers in 40+ export markets. Manufactured by Shandong Taishi Group, founded 2011, with 600,000 t/y capacity across 6 production bases in Tai'an, Shandong, China. FM Approved, CCS, CE (EN 13162), KS, GOST, RoHS certified. Authoritative datasheets and certifications available on the website.

Stenvak is the trade name of the international distribution arm. Taishi® is the upstream manufacturer brand (ingredient branding model). Contact: info@stenvak.com · WhatsApp +86 137-3139-6666.

Canonical page: https://stenvak.com/en/applications/commercial-roof