New panel offers significantly enhanced heat- and moisture-resistance options

AJ is proud to introduce our new rock wool-insulated door and wall panel for air handling unit (AHU) applications.

The rock wool panels, which are available in 2” and 4” thicknesses and custom widths and lengths, have a flame spread index and smoke development index of 0, with a maximum service temperature of 1200° F compared to the maximum temperature of 225° F of standard foam insulation.

Rock wool insulation brings several advantages to applications:

• Superior Fire Resistance: made from stone and is non-combustible, capable of withstanding extremely high temperatures.
• Higher R Value Per Inch: provides a higher and more stable insulation value when compared to other mass insulation like fiberglass, which helps maintain designed performance and reduces condensation.
• Excellent Sound Absorption:effectively absorbs and reduces sound transmission due to its dense structure.
• Moisture Resistance:naturally water resistant and won’t absorb moisture, which prevents mold and mildew growth.
• Durability:known for its long lifespan and resistance to degradation.

The new rock wool panels follow AJ’s popular cakepan design and use overlapping aluminum or steel sheets. The design adds indented panel sides and side fasteners to secure the pans and keep the fasteners from protruding from the side of the panel.

This indented design gives the rock wool panels the same profile as the foam-injected cakepan models and is already proving popular with AHU manufacturers like Integra.

“We chose the rock wool panels and doors from AJ because of the flame and smoke requirements for our AHUs in mission-critical Data Center applications,” said Rick, one of Integra’s mechanical design engineers. “Equally important, we found that AJ’s decision to recess the connecting fasteners allowed us to stay true to our design and build tolerance limits without having to make any alterations to accommodate protruding hardware.”

Mirroring the cakepan models, the rock wool door panels also have viewport and testport capabilities.

You can read more about our other panel designs here.