Windermere Blue brick is perfect for renovation work. Engineering Windermere Blue is a perforated engineering brick that combines high strength, low water absorption of 7%, and durability. Using Engineering Bricks in facing work would not hold any value, as engineering bricks are not chosen for their appearance. Their physical characteristics give them credence over other bricks when being used in buildings where strength, durability, and resistance is of prime consideration. They are strong and thus used in applications that require higher strength compression.