Above Sheathing Ventilation – Spacer Shim

ATAS International offers a new, patented, ASV Spacer Shim. Above-Sheathing Ventilation (ASV) is achieved by having continuous air flow between the roof sheathing or wall assembly and the metal panel system. ASV creates energy savings by reducing air-conditioning costs in the summer and adding insulation value during the winter as proven by studies and testing performance sponsored by Metal Construction Association (MCA) at Oakridge National Lab. ASV also minimizes the effect of condensation between the roof layers and wall assemblies.

ASV Spacer Shims are designed to be stackable, and will provide ventilation spaces in increments of ⅜” up to 1⅛”.

Line Drawing
Product Info
ASV Spacer Shim | Single Shim

⅜” air space

ASV Spacer Shim | Double-Stacked

¾” air space

CAD Details

Details provided allow for typical expansion and contraction values of the metal cladding materials as provided by ATAS International, Inc only. Allowance must be made for additional sub-structure movement based upon materials used and overall project design.