Products › Insulation › RainBarrier™ 45
THERMAFIBER · MINERAL WOOL
RainBarrier™ 45
Non-combustible mineral wool drainage insulation for fire-rated cavities.
- Thermal, fire and acoustic performance in one board
- 1″–4″ plus custom thicknesses
- RainBarrier™ insulation clips
DOCUMENTS & DOWNLOADS
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Available SKUs
| Thickness | Application | |
|---|---|---|
| 1″ | Non-combustible mineral wool drainage board — fire-rated cavities | Get quote → |
| 1-1/2″ | Non-combustible mineral wool drainage board — fire-rated cavities | Get quote → |
| 2″ | Non-combustible mineral wool drainage board — fire-rated cavities | Get quote → |
| 2-1/2″ | Non-combustible mineral wool drainage board — fire-rated cavities | Get quote → |
| 3″ | Non-combustible mineral wool drainage board — fire-rated cavities | Get quote → |
| 3-1/2″ | Non-combustible mineral wool drainage board — fire-rated cavities | Get quote → |
| 4″ | Non-combustible mineral wool drainage board — fire-rated cavities | Get quote → |
| Custom | Custom thicknesses available on request | Get quote → |
| Insulation Clips | RainBarrier™ attachment fasteners for board insulation | Get quote → |
Part numbers and pricing provided on your quote — most material lists quoted within the hour.