The Trimplate Spacer is used with Selkirk Class A chimney pipe when installing a Fire Stop or Roof Support Package in a flat ceiling.
Selkirk UT Chimney Pipe & Components Guide
The Trimplate Spacer is used with Selkirk Class A chimney pipe when installing a Fire Stop or Roof Support Package in a flat ceiling.
Selkirk UT Chimney Pipe & Components Guide