Detail of external wall insulation to eaves; where existing overhanging eaves meet the head of an new replacement window fitted into depth of new EWI. Detail for insulation of space above the existing soffit, up to the underside of new phenolic eaves insulation. Designed to deal with potential cold bridge at eaves; where loft or roof insulation meets cavity or other wall insulation. New EWI to join to overhanging eaves insulation directly above window.
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