Introduction to Damp Proofing

Damp Proofing



Type W Extension Duct

Available in 2 variation(s).

Use

 
To extend Type W to accommodate
masonry of greater thickness.


Introduction

 
The Type W extension duct is
designed to push-fit onto the Type
W Caviweep/Cavivent.It converts
the standard Type W into a
305mm straight through model.It
may also be used to extend the
Type W when employed within a
solid retaining wall to provide
moisture release.


Data


•Material polypropylene.
•Colour grey.
•Size:200/225 x 65 x 10mm.
•320mm²