Hay is a warm and dusty yellow with a distinct green undertone, evoking the freshness of the crop from which it takes its name. It\'s less intensely coloured than the sunny Yellow Ground, and therefore easier to use for those who love yellow but are nervous of strong wall colours.Exterior Masonry is a super-matt, long-lasting finish for exterior walls. Its water-resistant formula protects walls, while at the same time offering the highest level of water vapour permeability to allow them to breathe. Applied in line with the Product Advice Sheets, it resists flaking, peeling, and fading for up to 15 years. Providing it has been applied in accordance with Farrow & Ball Product Advice Sheets. Not suitable for use on exterior plastic surfaces or decking.Available in 108 Farrow & Ball colours.