What is the effect of using insulating millboard spaced out from combustible material?

Using insulating millboard spaced out from combustible material is designed to provide a thermal barrier that protects the surrounding areas from heat. Insulating millboard is specifically engineered to resist heat transfer, thereby minimizing the potential for ignition of combustible materials in proximity.

When insulating millboard is installed properly, it acts to reduce the effective clearance required between the heat source and combustibles. This is because the insulating properties of the millboard prevent excessive heat from reaching the combustible surfaces, allowing for closer placement than would normally be permissible without such protection.

This understanding is essential for ensuring safety in environments where heat-producing appliances are used, as it allows for more effective use of space while still adhering to safety regulations regarding clearances. Therefore, the correct answer reflects the functionality of insulating millboard in safely managing heat and clearance requirements around combustible materials.