What is the maximum dust percentage allowed in materials?

The maximum allowable dust percentage in materials is established at 2.0%. This threshold ensures that the material's performance is not compromised by the presence of dust, which can affect adhesion, durability, and the overall integrity of roofing systems. Dust can interfere with the bonding properties of roofing materials, leading to potential failures and reduced lifespan of the roofing application. Maintaining the dust content at or below this limit helps ensure that the materials used in roofing are effective and meet industry standards for quality and performance. Keeping the dust concentration controlled is vital for delivering reliable and long-lasting roofing systems.