The sub sill region of windows is an especially moisture-sensitive area. MTI's Window Drainage Plane™ allows moisture to escape from the sub sill area before it can cause problems.
The MTI Advantage
Creates a Drainage Plane in the Sub Sill Region of a Rough Opening
Rigid and Durable
100% Recycled Content a
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Specifications for Sub Sill Drainage - Window Drainage Plane™