Toprock® DD is a high-density uncoated stone wool insulation board for low-slope roof applications. It is a suitable substrate board for all low-slope roof decks and is compatible as the substrate for mechanically attached membrane systems. It has excellent acoustic properties and can be used either as a base layer of thermal insulation in an acoustic assembly with Roxul Toprock® DD Plus as the top layer of a hybrid roof assembly with polyisocyanurate or other roof insulations. It has exclusive stone wool dual-density properties that feature a higher-density top layer, providing strong point load resistance and effective load distribution to minimize puncture damage to the membrane - particularly during installation.

Features:

• Non-combustible
• Will not warp or cup
• Dimensionally stable-provides a long-term, consistent thermal performance
• High impact resistance
• Excellent acoustic reduction, absorption and impact (rain noise) performance
• Made from natural & recycled materials