Allura Sofft is available in vented or non-vented designs. Allura Soffit will not warp or rot as they are engineered to repel moisture and withstand any climate. A low maintenance alternative to natural wood soffit.Our Slate color has a beautiful medium gray tone with lighter accents that fill in the cedar texture of the soffit material giving it a natural silvered wood look. This color can be applied to cedar textured products only. Color match the trim and fascia or choose a complementary color - it's your choice.