Introducing the 225mm Righthand/Lefthand Stopend Starter Timloc - an everdry preformed cavity tray system designed to effectively prevent water penetration at the abutment of a pitched roof with a cavity wall. Approved by the BBA, this product is compatible with brickwork or similar sized components with regular course heights and mortar of approximately 75mm, offering unmatched protection for your home. Its fully compliant design meets British Standards, Building Regulations and NHBC requirements, providing clear user guidelines for easy installation. It can be used with external walls up to 120mm thick on roof pitches of 15 degrees or higher and is available in aperture widths from 50-110mm.