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Step 8: Cap the Top

Fold a lip lengthwise on some more aluminum rectangles so they have a round exposed edge and staple + overlap them across the ridge. The last cap piece will need caulking on the staples unless you try some tricky folding.

When I posted this Instructable, the roof was in operation for a month with a few spring rain storms. It had no leaks!!!!!!?? Crazy; I wonder how long it'll last.

03 Feb 2009- No major problems so far except for a bad hail storm; it has been about a year out in the weather. I had a few loose staples on the ridge cap last month. See the one-year pictures below. The dent damage seen in the photos was from a golf ball size hail storm late last spring that ruined every roof in town.
<p>I <em><strong>LOVE</strong></em> this! Thanks so much. I definitely can recruit some friends to help me out with &quot;materials&quot; for this project!</p><p> Talking my husband into the idea might be another story! But hey, ...it's FREE basically, and the water runoff aspect is awesome too. I am so excited to even think about this. </p><p><em> Thank you smart man!!!! :-)</em></p>
Thank you for this. I read a bunch of comments and I have to say that this will be perfect for my chicken tractor. It needs to be as light as a tarp since it is pvc and chicken wire.
<p>DIY-Guy Do you think that coating this type of roof with the Silver Coat (waterproofing material) that is used on Manufactured Home metal roofs would work to make it last longer?</p>
<p>DIY-Guy Do you think that coating this type of roof with the Silver Coat (waterproofing material) that is used on Manufactured Home metal roofs would work to make it last longer?</p>
I hate to be a &quot;negative nelly&quot; but you said 900 cans to cover 100 square feet (10X10), Where I live (maybe not where you live) beer and pop cans have a 5cent deposit which means that 900 cans will give you $45 which will easily buy 3 bundles of shingles which will coincidentally cover 100 square feet with much less work.&nbsp; Otherwise a great idea<br />
<p>I've looked at the asphalt &quot;three tab&quot; roofing and watched it weather away over the years. Aluminum would seem to last longer as long as chlorine is not applied to it. Does anyone know for sure if there is a lifetime limit before thin aluminum degrades into becoming porous and useless?</p>
Anyone can get plenty of free, empty cans. You wouldn't have to spend a dime. If you can't figure out how to collect some for free, you probably shouldn't be building a roof.<br />
<p>sorry wrenawild, but i think you misunderstood 67spyder in the point that you can sell cans to recycling centres for 5c a can, rather than buy them for the same price, as they&acute;re most definitely available free practically everywhere in the world. hope this helps.</p>
<p>5 cents a can would be a dream price for places that do not pay a reward, er, deposit price. The deposit price is artificially high. Aluminum is less than $1 per pound usually, depending on the economic cycle and commodities prices, price of energy, etc. No everyone lives in California or other places with deposit refunds.</p>
<p>It is not a reward. We pay the deposit when we buy the drink. We simply get that deposit back when we recycle the can. </p>
<p>Hmm, let me see... I corrected myself on the &quot;reward&quot; comment and stated three times the word &quot;deposit.&quot;<br>&quot;Deposit.&quot;<br>and again, &quot;deposit.&quot;<br>Thanks for reminding me about the need for being clear. I got a good laugh from that comment. :)<br>Have a great day!<br><br>In case, you missed it- I said &quot;HAVE A GREAT DAY!&quot;</p>
<p>Excuse me. I was merely making a comment. My screen did not show your whole comment (and it did not have a place to open it further.) Thank you for being so presumptive that you think I'm a dim wit. Sorry to ruin your day with common sense. I have 4 Ph.D.s - one in structural engineering and am always looking for new, clean ways of construction. PS Glad I could make you laugh.</p>
<p>I was laughing at myself mostly, but you're right. Your screen did not show the rest of either of my comments. Sorry you're stuck with limited ... software.<br>Again I wish you- &quot;Have a great day!&quot;</p>
Hmm, my neighbors would object to me &quot;making money&quot;&nbsp;off the deposit refund, but would be proud to contribute to a dog house or a shed that &quot;beer built!&quot; Some states have draconian tax and identification requirements which deny some people the right of refund. Maybe the beer-u-crats on the state payroll think the homeless are getting rich from cleaning up trash? That was the idea after all, was it not?&nbsp;Reduce the litter by making it valuable?<br /> <br /> One or two layers of non-degrading aluminum will withstand the UV for decade after decade. My asphalt and mineral surface shingles always need replacing before their projected lifespan is up. Metal is more permanent.<br /> <br /> Besides, this is all about re-purposing and DIY.&nbsp; :)&nbsp; <br /> Good method, good results, good for RobbToberfest!<br /> <br /> <br />
<p>DIY-Guy --Deposit refund, litter? Are you kidding? You can always take the cans to a recycle center. Some states, like California actually have separate bins for recyclable materials that are picked up at your curb.</p>
<p>No SuzyM1 I was not kidding, and am not kidding with my statements about some people getting angry if you cash in on their trash, and in some places it's almost impossible to get any money for the recycled scrap metal. In California you need government issued ID, fill out forms, etc. In other places the state requires ID and registration for tax purposes, even if they pay the per pound scrap price. The logic given is that &quot;maybe you are a thief cashing in on metal at scrap prices.&quot; I've watched the intent of the eco-do-gooders get hijacked and sidetracked over the decades of my life. (Yes, go ahead and call me old if you want to.) Not every place has the rose-colored glasses version of recycling. In some places the beer cans are worth more as roofing material because they cannot be sold for a profit. In those areas, empty beers are cheaper than roofing. <br><br>Thus ends my serious comments. Hopefully this has broadened your knowledge of different parts of the country, or the world. It's sometimes a shock to find out that other places do things differently than what we're used to.<br><br>In a lighter tone, the following remark is made in jest only-<br>&quot;Would it help if I typed slower? &quot; :)</p>
<p>DIY-Guy --Deposit refund, litter? Are you kidding? You can always take the cans to a recycle center. Some states, like California actually have separate bins for recyclable materials that are picked up at your curb.</p>
Don't get me wrong this is a fantastic idea.&nbsp; Also I have been thinking a lot about the refund issue.&nbsp; Although it motivates the uninitiated to be environmental it does discourage re-use which is better than recycling.&nbsp; In a state where there is no deposit there are usually easier facilities for recycling the aluminum based on weight which you can still do after you cut the top and bottom off (the heaviest parts) once you cut up a can it is no longer eligible for the refund.&nbsp; Mabe the bounty should be placed on the can top?? (RobbToberfest, Sorry about hijacking your excellent instructable with a political discussion)<br />
&nbsp;I'm lovin the discussion.
&nbsp;I would definitely go your route; but in Kansas here we're like a decade or two behind in recycling and incentive things like that.
<p>Even Kansas has recycling centers where you can take lots of metal not just cans. Old fridges, stoves, air conditioners, etc.</p><p>We live in a really small town but there is a recycling center and at least 3 large &quot;junkyards&quot;.</p>
<p>You do serve a valuable point but aluminum cans are the better pick if your planing on having a rain water harvesting roof and also its a more environmentally friendly way of going about it. </p>
<p>Brilliant!</p>
<p>My husband drinks about 72 Diet Dr Peppers a week. (No, that isn't a typo, and yes, I've nagged him about the health risks). I think this might be a great way to reuse all those cans that he promises to recycle but that end up in the garbage. About half get into the recycling but this would be something better to do with them I think. Thanks for sharing. </p>
<p>HA! If your husband is too lazy to put the cans into the recycling bin instead of the garbage, then I think he's probably too lazy to cut them up and make shingles out of them instead. :)</p>
<p>my husband in NOT lazy at all, in fact, he gets so busy that he forgets where he left the last project, and his dr pepper cans. :)</p>
<p>Are you sure your hubby is not my hubby? They sound exactly alike. Maybe they are brothers, Brothers of the Order of Dr. Pepper! B.O.D. : )</p>
<p>I think my hubby can beat your hubby with 84+ Dr. Peppers per week ! LOL</p><p>More in the summer. This is a great idea. Maybe he will use them for the roof of the dog's house or the shed since some things got wet this year. : )</p><p>(Yes, I know this is an old post.)</p>
<p>lol freakin genius! redneck engineering. I never thought of this.</p>
I'm a little bit confused on how to make the die... Could you maybe make a video?
This is awesome! I'm going to try this for my chicken coop and my kids tree house! Thanks!!
Thanks for the compliment, I'd love to see pictures if it works for you.
<p>How is going at today? </p>
I sold it. Sorry no status update on the condition.
So hey everyone I have read back over all your comments. My question is I live in Hawaii and I would love to shingle my tiny home instead of the typical big old bulky metal roof. Plus reuse and be Eco friendly with my home. So can I use these as a roofing substitute in a area where it's half rain half sunny. I do have a rain catchment system but as I am understand bathe bands give them self a protective later from rust. So my water would not have those in it right? If anyone would let me know any advice want to do a whole 24x24 home.
<p>How interesting that you criticise this then craftily put in a link to your roofing company. I'm planning try this or a similar method as it's better than paying for it.</p>
<p>Ok Love the idea but if you are this industrious lets go full bore and just build a forge to melt the cans then pour whatever shape we need am i right</p>
Does anyone know if anyone has tried using this for there home?
A lot of good instructibles really don't have any real world use, this does!<br><br>Pure alum corrodes literally instantly when exposed to oxygen and will shortly turn to powder. There are some mixes such as the 6000 series they use for believing ocean going boats as it doesn't corrode. If whatever was in there is acidic like tomato juice or oj its going to be corrosion resistant. If you can find galvinized steel tins thats another long term shingle in the making. <br><br>So has anyone figured out how many beer you have to drink to reshingle a roof? :-)
So, a bit late to the party, but I think aluminum beer cans have a corrosion resistant coating which makes this even more enticing.
<p>When solid aluminum oxidizes in contact with oxygen, it forms a stable coating of aluminum oxide which prevents the remaining aluminum solid from being exposed to oxygen. That's why aluminum doesn't rust. It coats itself with rust-proof aluminum oxide.</p>
<p>Way to labor intensive .... </p>
Any chance you could electroplate these? Using say pennies or bare copper wire? I like the idea of these but, love the idea if an oxidized copper roof just as much!
That's an awesome idea! I think the issue is getting the plastic coating off the aluminum somehow; maybe heat them to burn it off.
I'm not sure about all states but, where I live only carbonated beverages have a deposit on the can. You could still do this project with cans from juice, tea or other non-carbonated beverages to avoid the extra cost. I guess you could set up a neighborhood can collection so you wouldn't have to drink so much tea or juice (or just raid the curbside recycling bins before the truck gets there, haha). I love this project! Great job!
Not all States have a can and bottle deposit. Personally I'm not driving 4 hrs to get a 5 cent can or bottle deposit on my empties. This seams like a good way to use something that I GIVE to the recycling plant in my big blue bin every two weeks.

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Bio: Dad and hubby, paleo food enthusiast, solar energy, boating, making stuff, melting stuff, and raising chickens.
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