Smoke leakage (S): Failure of the criterion shall have transpired When the stream level in duct A through the check exceeds 10 m³ / (m² h), associated with 20 °C and 1013 mbar, associated with The interior area location with the duct Within the furnace. FastWrap XL is developed exclusively https://fireratedinsulationforduc80112.dm-blog.com/36867252/about-fire-rated-insulation-for-ductworth