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Above Sheathing Ventilation Spacer Shim



 
ATAS International offers a new, patent pending,  ASV Spacer Shim. Above-Sheathing Ventilation (ASV) is achieved by having continuous air flow between the roof sheathing 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 testing performance sponsored by MCA at Oakridge National Lab. ASV also minimizes the effect of condensation between the roof layers. 
ASV Spacer Shims are designed to be stackable, and will provide ventilation spaces in increments of 3/8". 






 

Single-Stacked:


Above Sheathing Ventilation Spacer Shim

Double-Stacked:


Above Sheathing Ventilation Spacer Shim
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.

Click to view full size image.

ATAS ASV Shim application

ASV Shim installation/application photo

ASV airflow

Above-Sheathing Ventilation (ASV) is achieved by having continuous air flow between the roof sheathing and the metal panel system. ASV also minimizes the effect of condensation between the roof layers.

Above Sheathing Ventilation shim

Above Sheathing Ventilation shim

Above Sheathing Ventilation shim single

Above Sheathing Ventilation shim single

Above Sheathing Ventilation shim double-stacked

Above Sheathing Ventilation shim double-stacked










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