Hong Kong's specialist in performance louvres.
We design and supply performance louvre systems for buildings across Hong Kong, engineered to balance airflow and weather protection. Our products are independently tested to British and European standards, manufactured to precise specification, and installed on institutional, commercial, and residential projects throughout the territory.
Who we are and what we do
Integrate Building Material Limited was first established in Hong Kong in 2014. We focus on the Hong Kong market with manufacturing based in China, specializing in performance louvres — architectural ventilation components engineered to let air through a building envelope while keeping rain out.
Airflow and weather protection, engineered together
A louvre provides airflow while minimizing the ingress of rain, while also contributing to a building's aesthetics. No louvre design achieves 100% airflow even with no barrier at all, and no design achieves 100% rain defense if there is any opening — so the engineering challenge is balancing the two as effectively as possible for each project's requirements.
Testing reports issued by BSRIA (UK-registered test, instruments, research and consultancy organization) to BS EN 13030:2001, the British and European standard for louvre weather performance.
Louvre sizing is minimized while maintaining suitable effective free area, reducing material use without compromising airflow performance.
Every part of the louvre profile is considered to maximize effectiveness while lowering overall cost — including factory assembly to reduce on-site installation cost and prevent transit damage.
A wide range of models and classes to fit diverse building designs — orientation, visible or hidden frame, and multiple performance classes.
BS EN 13030:2001 — Ventilation for buildings. Terminals. Performance testing of louvres subjected to simulated rain.
| Water Penetration Class | Max. Allowable Rain Penetration (l/h/m²) | Effectiveness |
|---|---|---|
| A | 0.75 | 100 – 99.0% |
| B | 3.75 | 98.9 – 95.0% |
| C | 15 | 94.9 – 80.0% |
| D | Over 15 | < 80.0% |
| Discharge Loss Coefficient Class | Coefficient | Rating |
|---|---|---|
| 1 | > 0.4 | Excellent |
| 2 | 0.3 – 0.399 | Very Good |
| 3 | 0.2 – 0.299 | Good |
| 4 | < 0.199 | Fair |
Performance louvres delivered across institutional, commercial, and residential buildings in Hong Kong