FAQ

Kirb-Perfect
Why should I use Kirb-Perfect?
Kirb-Perfect was designed to slide over a membrane wrapped 2x4 curb
and nailed, or screwed, to the front outside wall of the curb only. This
preserves the integrity of the liner by not puncturing it on the top or
inside wall of the wood curb.
How long of a curb can I make?
Length is unlimited. Located on both ends of each 30 inch section of
Kirb-Perfect are dovetail connectors. These lock the sections together
before being filled with mud which makes Kirb-Perfect limitless.
Can I trim Kirb-Perfect to make a shorter curb?
Yes, but keep in mind, the mud bed of a tiled shower floor cannot be
thinned and code requires mudbeds to be a minimum 1½ inches thick
around the drain.
Is Kirb-Perfect pitched?
Yes. The top piece has the pitch built into it. Embossed arrows point in
the direction of the fall.
What type of cement do I fill it Kirb-Perfect with?
Fill with the same Portland / Sand mixture used for Pre-Pitch.