BMI Redland 28 Heather Cambrian 4.5K Thruvent 770528
Provides a means of incorporating ventilation within the roof slope where alternative eaves and ridge ventilation systems are not appropriate. It can also be used for mechanical extraction and soil pipe ventilation. Thruvent ventilates to comply with BS 5250:2011, therefore reducing the risk of harmful condensation in the roof. This product also complies with BS 5534:2014 requirements for mechanical fixing and BS EN 12056-2:2000, Gravity Drainage Systems Inside Buildings.






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