They remain durable for a very long time.We have a decent in energy bill after installing TPO, our roofer told us TPO is very energy efficient as they are perfect insulators, TPO are made from recycled plastic materials.If you want to try TPO roofing go with an expert roofer offering good warranty and Insurance.Our previous garage was TPO roofed by an Industrial roofer named as Empire Roofing Corporation.

Rental properties have a higher standard for dryer venting,, most city inspectors will require you to have smooth sheet metal duct, not any of the accordion type dryer vent hoses made of plastic or flexi metal.. and must be vented outside..I'd call city talk to inspection department and find out the regulations.. as your currently "thinking" about adding a dryer... honestly we had a huge issue with trying to install a washer and dryer in a 4 plex,, the city inspector would not permit use because we didn't have a egress window in the basement for an additional way to exit,, code required 2 exits out of basement to have a washer or dryer for use.. basically the basement was off limits. because of no 2nd point of exit we couldn't even let tenant's down there so we had to lock it off. 

The soninlaw had back surgery and is disabled. 

They are by far the cheapest where I invest to do this because they like to crawl on the plastic instead of the dirt. 

. ;)My tenant flushed a plastic bottle, about 4-5" long, about 1-2" in diameter down the toilet and clogged it. 

Just a thick solid sheet of plastic, 10 mil or thicker.

I learned that caulk and paint will fix any gap in a window.Speaking of unwanted airflow, my insulation education was top notch, just cover every window casing in its entirety with plastic sheeting.

It’s best to use someone who is repeatedly doing what you’re trying to doDon’t go to an eye doctor for hand surgery. although doctors are usually smart enough to tell you it’s not what they do. 

Yes, it isn't rocket surgery.

But I have quite a bit of debt from my my surgeries etc and personal credit cards etc.