CTWUG Waterproofing
From CTWUG Wiki
This howto was compile by Scoop You can see the online version at http://www.scoopdistribution.co.za/wug/wug.html
1. Screw connectors together
2. Tape over exposed areas
3. Apply Butyl tape 5mm over each end of bottom layer
4. Tape 5mm over each end of Butyl tape