IPC Subgroup
E04D 1/28 Roofing elements comprising two or more layers, e.g. for insulation
Introduced: September 1968
Last revised: January 2006
Full Title
Roof covering by making use of tiles, slates, shingles, or other small roofing elements > Roofing elements comprising two or more layers, e.g. for insulation
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- BUILDING
- Subclass:
- ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS