of plane slabs, slates, or sheets, or in which the cross-section is unimportant (E04D3/35 takes precedence)

Full Title

Roof covering by making use of flat or curved slabs or stiff sheets (E04D1/00 takes precedence; built-up roofs E04D11/02) > of plane slabs, slates, or sheets, or in which the cross-section is unimportant (E04D3/35 takes precedence)

Child Classifications

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• E04D 3/04 of concrete or ceramics (of asbestos cement E04D3/18)
• E04D 3/06 of glass or other translucent material; Fixing means therefor (fixing glass panes by means applicable to windows E06B3/54)
• E04D 3/16 of metal
• E04D 3/18 of specified materials, or of combinations of materials, not covered by any of groups E04D3/04, E04D3/06 or E04D3/16