The Metal Cladding and Roofing Manufacturers Association
Parapet Gutter - Twin Skin Construction Details

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    Key Features
  • Gutter thickness and thermal bridging detail could vary, depending on manufacturer.
  • Ideally, the gutter outer surface should not bridge insulation.
  • Cladding details will minimise bridging due to cladding, no matter what gutter design is used.
  • Liner must be air sealed to gutter legs on both the roof and parapet side.
  • Roof liner must terminate approximately in line with purlin web, to avoid bridging gutter insulation.
  • Insulation must fill to gutter junctions leaving no voids.
  • Flashings must not bridge insulation.

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