Initially I planned on using 6 mil plastic for the roof of my underground house, so I looked for sources for that. A roll of 6 mil runs around $80 from a local distributing company. However, I was concerned about possibly poking a hole through it in installation, so I started looking at EPDM rubber roofing.
The problem with EPDM is that it is expensive! From what I've seen it runs about $1.10 per square foot for .45 mil rubber! That adds up quick and takes a bite out of the budget.
I work in North Dakota in the oil fields, and I noticed that all of the million gallon Poisidon tanks that hold the water for fracs use EPDM rubber liners. I got excited about the possibility of snagging some when they move the tanks. They throw away the liner each time.
However, I got sprayed with some water that was in one of those tanks and it gave me a mild chemical burn. That got me to thinking: Do I really want to live with those chemicals in my house for the next 50 years?
After looking online, I came up with www.repurposedmaterialsinc.com. They sell 45 mil rubber roofing for $400 for about 2000 square feet.
This is used roofing material that came off of commercial buildings, and it has holes in it from vents, etc. I don't think it is hurt, and it will last forever under 18" of earth.
The only problem is the holes and irregular shapes. I went and talked to a roofing contractor who installs it, and he told me of a tape you can buy to seam it, though I have not sourced that yet.
They also sell billboard vinyls which could be used for many applications. I hope to try it out on a greenhouse on the walls.
Anyone else have any sources to share for rubber roofing or billboard vinyl?
I have picked up a few billboards (friend of a friend....) but have also seen them on Craigslist. They are great protection, but need to be stretched TIGHT if used outside. Then ones we had got very brittle in the cold and any flapping in the wind would crack the plastic on both sides. The reinforcing fabric held, but no longer waterproof.
I intend to use them on my wofatigreenhouse, probably in addition to the 6 mil poly. I figure they will be a good protective layer.
I have friends using them as pond liners, will let you know how they turn out.
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus
Location: Ontario North and South - right now, moving North Permanently soon. Timmins Cochrane areas
posted 7 years ago
Find a flat roofer, here they can source some rubber that is thick, 20' wide and up to 100' long, price per the person your dealing with of course.
The neighbour here is a flat roofer, fixes and creates, could not even envision what I was talking about, but offered up some rubber for me to use, so nice guy!
We have this type of roof and have installed it many times.Not sure about your location but yes there is tape you can buy as well as different types of repair glues and patches if your using second hand epdm roofing.We get ours from a roofing store close to us,,
Personally when we were building we looked directly at what happens if a leak occurs there was no way I was going to risk having construction plastics as my roof system..LOL they are fine on my greenhouse and I have a 10 mil not a 6 mil on it right now and still have sticks go through it ..You will be much happier putting out money for the epdm in the long run..Our house has new on it but we also have some from a job that is being re-purposed to the strawbale house going on the hillside..
I am looking to build a small wofati I only plan to live in 1-5 years. The idea is something I can build extremely cheaply and save some money to get the land I want while gaining some experience building this type of home. Would using polyethelene on this be okay given the short term occupancy? If not, I will see what I can find on these re-purposing places
You frighten me terribly. I would like to go home now. Here, take this tiny ad: