The Brew Cabin

Posted: **Wed May 30, 2012 11:17 pm**

hi - first time poster so go easy.
probably a stupid question but i'm a little confused over the 'permeability' issue when using rompox. I'm laying sandstone pavers on a dry mix bed and want to use rompox to point with.
The laying course is on a concrete floor of a knocked down shed which is about 2ft off ground level (raised patio).
As rompox is a permeable jointing product will water seepage cause a future problem? or will the fall be sufficient to remove the water?
cheers for any suggestions.

Posted: **Fri Jun 01, 2012 10:12 am**

Although the jointing is permeable, it relies on the substrate being permeable to allow water to flow right through. If you have an impermeable, or less permeable, substrate (such as a mortar bed), then once the jointing is 'full' of water, it will overflow and the rest of the water will have to flow across the surface and find somewhere else to go.

The Brew Cabin

Rompox over concrete base - confused!!!!