CASE STUDY PROJECT Heathrow replaces roofs damaged by the vortex effect ROOFING CONTRACTOR Richardson Roofing PRODUCT Redland 49 HEATHROW LondonThe Redland 49 tile, with its ability to be fixed both top and bottom, is the first choice product used to replace roofs around Heathrow Airport that have been damaged by the vortex effect. A vortex is a circulating eddy of air, like a mini-tornado, caused by low-flying aircraft. The effect,

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