The JES is a two piece metal-work system which enables the use of engineered timber I-joists in loft conversions, offering a safe and economic alternative to the traditional method which requires steel girders.
It provides reinforcement to the joist ends where they are cut to fit within the eaves of the existing roof. The I-Joists are installed from wall plate to wall plate, which means there is no need for a costly Party Wall Agreement.
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