New DIY rising damp treatment from the makers of Dryzone damp proofing cream. The rods form a damp proof course by distributing water repellent material along the mortar course. BBA approved, Dryrod is the most effective form of rising damp treatment available, proven to work even on highly saturated walls (up to 95% saturation). Dryrods are extremely easy to install and offer permanent eradication of rising damp.