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PCE
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CPC Main Group
E04D 13/00

Special arrangements or devices in connection with roof coverings; Roof drainage (ventilation tiles E04D1/30; ventilation slabs E04D3/40; internal channels E04F17/00)

13 direct subcodes

Child Classifications

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  • E04D 13/02 Roof-covering aspects of dormer windows (E04D13/14 takes precedence; structures therefor E04B7/18)
  • E04D 13/12 Devices or arrangements allowing walking on the roof or in the gutter