I am currently building an extension to my property but I have hit a little snag.
The draughtsmans plan says "I.G. Lintels to have cavity trays d.p.cs"
Does this mean that cavity trays have to be installed at damp proof level where lintels are used, or do the trays go above the lintels.
Any help would be appreciated
The draughtsmans plan says "I.G. Lintels to have cavity trays d.p.cs"
Does this mean that cavity trays have to be installed at damp proof level where lintels are used, or do the trays go above the lintels.
Any help would be appreciated