How To Repair Holes In A Tin Roof

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03-30-2011, xi:54 AM

Location: Holly Neighborhood, Austin, Texas 3,942 posts, read six,005,801 times Reputation: 2767

I got a bid that was 30% higher than another only included: "replacing the damaged roofing console, force per unit area washing your unabridged roof then resealing every spiral with a silicon sealant and extending you a ane year watertight warranty for....." Is sealing the screws necessary? His reply was: "proceed in listen if you don't seal your existing panel screws you will exist vulnerable to leaks which lead to costly drywall and paint repairs. Whatever quality roofer would know this and bring it to your attending." Won't the silicone sealant bake in the Texas sun and be rendered useless in a few years?

03-xxx-2011, 12:xix PM

lifelongMOgal 29,984 posts, read 40,668,120 times Reputation: 12803

Is this silicon in addition to the rubber gasket that usually accompanies the screws for metal roofs?

03-30-2011, 01:43 PM

Location: Johns Creek, GA xv,802 posts, read 58,860,895 times Reputation: 19914

Quote: Originally Posted by verybadgnome I got a bid that was 30% higher than some other but included: "replacing the damaged roofing console, pressure washing your entire roof and then resealing every screw with a silicon sealant and extending you lot a 1 yr watertight warranty for....." Is sealing the screws necessary? His respond was: "keep in heed if you don't seal your existing panel screws you will be vulnerable to leaks which lead to costly drywall and paint repairs. Any quality roofer would know this and bring it to your attention." Won't the silicone sealant broil in the Texas sun and be rendered useless in a few years? Do not always pressure level wash a metallic paneled roof! That will guarantee wet on roof decking- which can lead to rot. And if there is slats instead of decking you lot could stop up with as well much wet in the cranium, or far worse water stains on the ceiling. Metal roofing should exist cleaned with a balmy detergent and a soft bristle castor. Stained areas, depending on what caused them can exist cleaned with a combination of balmy detergent and bleach- followed by a skillful make clean water rinse. As far as sealing the screws, well that depends. What type of screw was used originally, and what blazon of washer did it have? The washer should be Neoprene. Neoprene(CR) possesses first-class resistance to sun, weather, and ozone. Considering of information technology's low charge per unit of oxidation, neoprene has a high resistance to both outdoor and indoor aging. Neoprene can be compounded to resist 1k+/ppm of ozone- natural rubber would crack within minutes of exposure. So, patently neoprene is the superior product. The best screw to use is stainless steel (SS) but, information technology'south as well quite expensive. Most installers utilise a galvanized screw- some are colour coordinated with the roof panels. The problem with galvanized screws is if the galvanized blanket get chipped off during install it volition rust. Which can cause unsightly stains upon the roof. Roofs are of course subjected to the elements which can include tar, grease or oil along with the usual clay, grit, and organic matter. Near can exist removed as mentioned before or past using denatured booze, isopropyl alcohol, or mineral spirits followed by a h2o rinse. Typically, for Galvalume-coated panels (which is different from the typical painted panel) a not-acid cured silicone caulk or a one role polyurethane sealant (such as Sikaflex 201) is best for such repairs. I'm curious as to how the "resealing" will actually be done. If I had to guess, I'd say information technology would be done the way I've seen it washed in the past- just dab a gob on the screw and on to the next i. I'one thousand here to tell ya- information technology looks like S#!t! As long as the original washer was neoprene, in that location should be no reason to "reseal". And if y'all had to "reseal" a screw- institute leak from screw hole, the best course of action is to remove the nowadays screw and supervene upon with a new screw with a neoprene washer. The drawback to this of course is the holding ability of the spiral maybe diminished because of the water infiltrations effects on the woods fellow member. I guess it goes without proverb merely, subconscious fastener metallic roof systems are much less likely besides ever leak.

03-31-2011, xi:24 AM

texdav 48,507 posts, read 91,417,153 times Reputation: 18216

Y'all demand to look at the roofing manufactures site equally to fastenrs requiirements every bit to number and how the gasket has to exist seated.Done correctly they should last the life of the roof which varies with climate.

05-11-2011, 09:24 PM

smwohio 9 posts, read 140,288 times Reputation: 17

Those screws don't last forever, and sometimes they strip out. Over time the screws can work loose when the panels aggrandize and contract practice to changing temperatures. Caulking the screws is fine but information technology may await bad, but it is definitely your cheapest selection. You could replace all the screws that don't announced to exist sealing with larger diameter ones with new neoprene washers but screws are actually expensive similar any where from 9 to xxx cents each which adds upward when y'all have thousands of them poking holes in your metal roof. Pressure washing would be bad; nigh no roof can hold up to a pressure washer.

05-11-2011, 09:39 PM

texdav 48,507 posts, read 91,417,153 times Reputation: 18216

Actaully I would never put any metal roof on that requires exposed screws with gaskets except on something like a patio. For case a 10X forty patio I did crave about 400 screws be set to meet manuafcturers fasenig requirements. I had three leaks on screws which were visably correctly seated. Since it was only spots from below when it rained they were hands replaced.

05-13-2011, 09:41 AM

wcu25rs Location: WNC 1,561 posts, read 2,623,146 times Reputation: 1582

Quote: Originally Posted by texdav Actaully I would never put any metal roof on that requires exposed screws with gaskets except on something like a patio. For case a 10X xl patio I did require nigh 400 screws exist set to meet manuafcturers fasenig requirements. I had 3 leaks on screws which were visably correctly seated. Since information technology was only spots from below when it rained they were hands replaced. upwardly until almost 6 years ago, we installed metallic roofs 5 days a week for about 10 years....we recently got out of installation because our sales/distribution got large plenty to where we didnt need to install. However, in that time, probably 80% of the installs we did were exposed fastener metallic roofs, and nosotros have not had one leak due to screws. Now one reason is that neoprene will last a long time, only the biggest reason is because we ever put our screws in the ribs(we would not install a roof if the customer requested they exist put in the flat), and even if a screw isnt seated perfectly, it will non leak on the rib.

05-xvi-2011, 05:51 PM

smwohio nine posts, read 140,288 times Reputation: 17

Quote: Originally Posted by texdav Actaully I would never put whatsoever metal roof on that requires exposed screws I install metal roofs for a living and I hold completely; exposed fasteners are generally a bad thought with metallic roofs. There are better means to install a metal roof without exposed fasteners, but they require a lot of labor making a quality subconscious fastener metal roof too pricey for about home owners. If a person needs a roof immediately, wants a metallic roof that lasts a lifetime, but doesn't take the money immediately then they should just pace downwards to shingles until they can afford a metal one. The screw downwards panels made today are more often than not very very sparse(most 29 estimate), while a quality metal roof is 24 gauge. Flashing details of spiral down console systems are lower quality and tend to non look very good. Last edited by smwohio; 05-16-2011 at 05:54 PM.. Reason: grammar

05-31-2011, xi:20 AM

wcu25rs Location: WNC 1,561 posts, read 2,623,146 times Reputation: 1582

Quote: Originally Posted by smwohio I install metal roofs for a living and I agree completely; exposed fasteners are more often than not a bad idea with metallic roofs. There are better ways to install a metal roof without exposed fasteners, but they require a lot of labor making a quality hidden fastener metal roof too pricey for most home owners. If a person needs a roof immediately, wants a metal roof that lasts a lifetime, but doesn't take the money immediately then they should only stride down to shingles until they can afford a metal one. The screw down panels made today are generally very very sparse(about 29 gauge), while a quality metallic roof is 24 estimate. Flashing details of screw downwardly console systems are lower quality and tend to not expect very expert. this is very far off base. ane. I know this depends on the area, but in our territory, metal is cheaper than even the all-time shingles, and has been for a few years. Plus, even in areas where metal might exist more than expensive, it's still far cheaper in the long run. Considering the installer uses a quality metallic covering panel with a high quality paint system, it's gonna concluding FAR longer than shingles. matter of fact, for most people, putting on a metal roof means that the roof will never take to exist touched again(aside from cleaning). Shingles Volition accept to be done again, no matter what the quality of the shingle is. 2. I said it in my final post, but an exposed fastener roof done correctly(key discussion) is perfectly fine and is perfectly safe. 3. Saying that 29gauge is very very thin shows me you use a lower quality console. In every judge, in that location are tolerance ranges. some make them on the low end of that range(thin metallic or "junk" metallic as we refer to information technology) and some make them on the loftier end(which is a very thick 29 gauge). We sell ane of the thickest 29 guess panels you tin buy, and information technology'due south actually thicker than some companies' 26gauge panels, again because of that tolerance range. four. The idea of flashing looking good or bad on an exposed fastener panel is completely dependent on the installer.

05-31-2011, 11:28 AM

texdav 48,507 posts, read 91,417,153 times Reputation: 18216

Nevertheless their is a reason that nearly metal covering only has a 25 year gauarantee. In my area quailty metal is much more expensive because of the labor toll. Just wait at the makers fastener requirements in numbers to run into why if it properly done.

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