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  1. EWI to pitched roof with extended verge

    Detail for external wall insulation to the underside of a pitched slate roof with an extended verge. Used to retain the character of the existing pitched roof and verge after installing EWI system. Where the existing pitched roof does not cover the additional depth of the EWI the existing roof is subsequently extended over the new insulation.

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  2. EWI to pitched roof, extended verge (existing roof supported)

    Detail for external wall insulation to the underside of a pitched slate roof with an extended verge. Designed to retain the character of the existing verge. In this case,where a pitched roof needs to be extends beyond 200mm to provide enough shelter for insulation. New fascia board fixed to front face of EWI to match existing.

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  3. EWI to top of monopitch verge

    EWI detail for insulation running up to the top of an existing monopitch verge and forming a new parapet with stainless steel cap flashing. New lead flashing to junction of roof with insulation and stainless steel cap flashing over insulation and render.

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  4. EWI to flashing at verge

    Detail for external wall insulation up to a pitched roof verge without sufficient depth to cover depth of insulation. To be used where it is not possible to extend the existing roof verge over the insulation, and so a new cap flashing must be installed at the junction between roof verge and external wall insulation.

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  5. EWI to pitched roof with flashing at verge over insulation.

    Detail for EWI up to an existing verge on a pitched roof. Where it is not possible to extend the existing roof verge over the insulation, a new Stainless steel mini-gutter is installed, at the junction between the roof verge and the new external wall insulation.

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  6. EWI to top of monopitch, meeting verge

    EWI detail for insulation running up to the top of an existing monopitch verge; forming a low parapet with stainless steel cap flashing. New lead flashing to junction of roof with insulation and stainless steel cap flashing over insulation and render. New EWI verge to side of parapet to aid water run-off.

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  7. EWI to slate roof verge with existing overhang

    Detail for EWI up to an existing overhanging verge with sufficient overhang to take depth of EWI. Installation of a new timber fascia board over EWI at junction with roof. Mastic seal at all edges, existing membrane below eaves to be re-dressed over insulation.

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