Home / Preparing for your project / DCM-PRO Waterproofing Kit Do I need a waterproofing kit? DCM-PRO Waterproofing Kit Waterproofing is highly recommended in any wet room. Underfloor Heating Thermostats Heated Floors Further Questions? Installation - Does the waterproofing kit go above or below the membrane? - How is the Warmup Waterproofing Kit installed? - Do I need a waterproofing kit? Preparing for your project - Do I need more than one waterproofing kit? - Do I need a waterproofing kit?