I hope more see it and understand what it means (plastic versus metal insides....).Continuous success!

You can have plastic or metal channels on the wall surface in older houses but not just something that looks like electric cord outside the wall. 

I'd wear a cheap plastic rain suit, goggles and mask. 

The deck won't get a lot of sun because of the tree, but I am a little concerned about "plastic" decking still getting too hot.

i am not into flipping, but even if i was, i'd still think that what you are doing is a major overkill. most people are cluless when it comes to anything that they can't see. what the TV shows on HGTV and you will see. the only thing they mention is what they hear on tv - granite, paint color, stainless, and travertine.you think they will know the difference between schluter kerdi/4mm plastic or hardibacker?

I'll add too that if you use PEX, get the metal connectors instead of the plastic. 

Just make sure have plastic drop cloth to catch the flakes and tape up the garbage bag you put it in.

You can also add two feet of plastic around the home with landscaping rock over it, again to keep the water moving away.

During demo of the old plaster walls and ceilings, the contractor neglected to put up any plastic to protect the dust from travelling to other parts of the house.Luckily that was day 1 of the project and we were able to correct the issue and realign our expectations.

You have refrigeration, Air Conditioning, a smart phone, the internet, Air Jordans, two computers, take vacations, go to college, 37 flavors of ice cream, have 365 channels of TV (I didn't say they were worth watching ;-) health insurance, life insurance, fire insurance, auto insurance, home owner's insurance, SDIRA, 401(k), plastic surgery, viagra, fast food and can call the shots of just about anything you want to do or be.I grew up in a 790 sq ft house with 4 brothers, a cousin & aunt and my folks.