Cromar Bitumen Trowel Mastic - Black 1L 
The Plastic Airbrick has outstanding properties that benefit the structural integrity of a building. It aids in ventilation which combats condensation and can deliver effective airflow to the void below the building, ensuring that mould doesn’t build up, causing damage.
The Airbrick is manufactured from polypropylene; this naturally lightweight product is resistant to decay, offering endless application and won’t require replacing over time. It has a stepped front grill which prevents birds, vermin and critters from entering and nesting, and it also reduces the chance of rainwater from entering.
Quality
It has been taken through various standards and regulations, and these include the following;
- BS5440
- BS EN ISO 9001
- BS EN ISO 14001
- BE EN 13141-1 : 2004
- All NHBC Requirements
- All relevant British Standards
- All relevant British Regulations
