Removing ponding water by lowering the roof and cutting a channel to the drain. Connecting the Torch Down Rubber Roof to the drain. Channels are the most effective way to get water to flow from one part of the roof to a drain. Instead of installing insulation to fill low spots, cut a channel to allow water to drain out.
0:00 Big pond of water
1:15 Finding a low section of the pond
1:44 Snapping line for channel
2:09 Cutting roof open to remove material
4:18 Cutting tabs on drain away
4:41 Use angle grinder to cut into the roof
4:55 Removing insulation inside the channel
5:36 Installing Torch Down Rubber in channel
7:44 Tie Channel into the drain