Plant Room And Conduit Penetrations

Where flexible power conduits or telecommunication cables are required to penetrate the roof cladding, accessibility can be improved by using P.V.C pipe fittings and an E.P.D.M. flashing to weather a number of conduits.

Cable penetration flashings must be goose-necked. It is not acceptable to exit cables through a vertical flashing such as a boot flashing where sealant is the only barrier to water leakage.

PVC and E.P.D.M Flashing

This flashing should be fixed next to the purlin for support.


Safety bollards for fall arrest anchorages are required where regular maintenance is required, and these can also be weathered by E.P.D.M. flashings.

Revision Category: 
2 - Editing and rearrangement
Revision Detail: 

Completely revised clause.

Draft Clause: