VaproSillSaver, a patented sloping window sill, protects window sills against water damage and reduces installation costs by over 50%.  Test results yielded no water leakage up to 8.25 PSF of windblown rain.  Tests performed in accordance with ASTM ES 47 and AAMA 502-90.

There are three parts to the VaproSillSaver:
Spacers
Molded Corners
Sloping Sill Base

All parts work together providing you with a high performance nail flange window flashing system.

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Complete High Performance Building Envelope System - Nail Flange Window using breathable membranes, rain screen design components and 3D window flashing elements.