It does not matter if the pipes in your house are plastic (PVC) or copper- both materials freeze equally. Both types of material need to be thawed out just as soon as possible.
Problem No 2. The porch was back pitched towards your house. This implies that each time it drizzled, the water would drain to your home, when it must be facing the lawn far from the home.
After the guide is dry, you can begin using a coat of paint. People will use an epoxy paint on a paint roller or paintbrush. Utilizing paint roller will be able to cover a lot of ground much faster than a pai