If you're going to push the life of your roof I believe plywood is the best option because it dries out faster and doesn't swell. :roll: Guy’s I know there are other pic’s of deck damage after roof replacement , tell me about this one ! Then came plywood, then OSB. Plank decks suck. In the contract it specified removal of all shingles and repair of any damaged/rotten wood. Back in the day (before cheaper plywoods) that was the way to go. Before any work began, the homeowner wanted to leave the old shingles in place, to cut down on job costs.Although I explained the negative consequences of making this decision, the possibility of saving $2000+ on tear-off and plywood was too attractive. That should either entail opening the roof to do so or bracing them back up flat from the attic. So I'm looking at getting my roof re-shingled. So I'm looking at getting my roof re-shingled. i hate 1x boards!!! Photos are located here: s956.photobucket.com/albums/ae43/grimaila/. Most guys do not inspect the attic when they finish a job. So they may have experience, that tells them that the decking will likely have to be replaced. If you insist on replacing it upfront I won't say no, but the price is the same weather or not it is in the original contract or added on as a change order once the shingles are removed. His roofer did a similar fix. [DSCN4213|666x500], Powered by Discourse, best viewed with JavaScript enabled. I recently had a roof replaced. If the roof deck gets a slow leak, the water seeping in hydrolyzes the glue holding the wood chips together. Get them back to fix that. they are often a problem just like what you have and can big even worse then what you have. Roofing-over costs around $2 to $3 per square foot, as opposed to the average full replacement cost of $4.50, so roofing-over a 1,500 square foot roof may only cost $3,000 to $4,500. Them are fresh breaks, if it was me & my company Id fix it no problem. These tips cover plywood characteristics and proper installation of plywood. Make sure bid has properly sized ventilation solution to address so this doesn’t keep happening. We fix those, and almost always the reason is that some basic part of the overall system was ignored or done poorly. If not, climb the roof and measure the opening so you can cut the replacement piece to be a perfect fit. How to Replace Roof Sheathing. Now if contractors are still putting this stuff down today then I would call him a throwback lol. There is one more type of plywood that has been known to be used in roofing, which is Fire-Retardant Plywood or FRT Plywood. im still seeing 1x’s used in new construction here! One way to check that is to look at the plywood from the underside and check if the nails protruding through the plywood are rusty, and if so, whether there are dark marks around the nails in the wood. Excess heat doesn't cause plywood to sag or become wavy, but excessive leaking through the roof covering will (over time). Such as a roll of paper or bundle of shingles. In some regions, for example, metal roofing is a common selection due to its fire resistance, while in other regions, the predominant home styles might call for a Spanish-influenced tile tool. Step 6: Apply Roofing Felt and Replace Shingles. Its just pure lazyness on their part or a laborer didnt want to tell his boss. The truth is though, unless your ceiling and roof are falling in, you won’t know the true condition of the wood until the roof is removed down to the existing decking. When paintin… It is made of steel, aluminum, plywood … sure that boards are not rotted, splintered, or warped. Call em back. Decking is replaced as needed. Again, this is very common. This is most likely caused by a nail gun shooting the nail in the shingle. either or should be fine. Decking is typically an addition to roof replacement bid and will increase the price. They probably didnt break before because people avoid putting weight on them. I 'm wondering if this is something I should insist on. Your choice of roofing materials often depends on your locality, as much as on your own personal taste. Press J to jump to the feed. seems like all the old houses here in oklahoma have 1x’s along with 2 or 3 layers, and for some reason insurance company’s wont help the customer out at all with decking charges, makes it difficult when the customer doesnt have the money and you hope for the best but when you tear of the shingles, like i suspected, the decking is shot… are there any advantages to 1x decking? The other two have stated that as long as the plywood is good and stays dry, it can last forever. Read, be informed, and extract maximum useful life from your plywood project. I wouldn’t get all worked up about it. Analyzing Roof Repair Estimates If you’re not a roofer … resulting in the need to replace the damaged decking sheets. Heck, sometime you can even see where the ice & water shield shield end and the felt begins. This sub is for questions, interesting pics or videos and stories about roofing. OSB is a good material as long as it doesn't get wet. 1. If your ventilation is decent, then the incoming leakage generally gets dried out in a few days or so. I had a roofer come over who told me the reason why my shingles are the way they are (curled) is because there isn't enough … How do I know? ... We did not have anymore rain and they finished the roof on the garage saturday and completed all clean up before they left . Select plywood or oriented strand board that is the same thickness as the wood you are replacing. Hopefully they will like that gentleman from Cornroe, Texas said. The way I look at it is: 50% rotten or more (either for each board or roof deck as a whole) I would replace it. The roof is only as good as the roof deck. Just call them back and let them know you understand the type of decking you have and they will come back. He quoted me for replacing the shingles and I inquired about the fact that there are some waving on the roof from the plywood starting to warp. Plywood is the ideal material for places having a wet weather condition. They will break the boards. I am concerned because if anyone steps on the roof in any of these locations, they may fall in, become injured and/or cause a major leak. Also Know, how long does roof plywood last? However, if you are already removing much of your roofing material for replacement, then changing out the plywood is not much more trouble. It's a mistake for the roofers to say that the plywood will definitely have to be replaced. Mike, Id be absolutely pissed. Last winter we worked on replacing shingles on a roof that sustained massive ice dams damages. Until the 1940s, exterior grade plywood was not available. And it’s all because the industry is not educating homeowners. Most roofers on here do not recommend re roofing over wood decks like yours. they are valid concerns. Re-roofing may not last as long as completely replacing the roof. These are not boards that were broken and ignored, they are boards that broke during shingle installation. They’ll understand. It really is not that difficult. Some roofers don’t worry much about customer satisfaction since replacing a roof is a once-every-few-decades job, which means they don’t have to count on repeat business. Do not bash your roofer for this, especially if he offered re-decking as an option. Allen Roofing did not bother to properly flash the installation throughout - the use of TAR was their solution ... replaced plywood only where needed. The Five Things Your Roofer Doesn’t Want You to Know. Asphalt shingles will need to be replaced eventually. If they are not square, it will project through the plywood causing a wavy look. Unless you know for sure that it needs to be replaced it is somewhat foolish to insist on replacing it because it can come close to doubling the cost of the job. of attic space), then chances are lack of ventilation isn't the issue. You can also see the valley metal telegraph through the shingles. If you can see those imperfections, you will certainly see the waviness. ... the flowerbeds. Roof sheathing consists of sheet materials that form the flat surface that serves as a … New comments cannot be posted and votes cannot be cast. Step 5: Replace Plywood. In fact, if he offered a re-deck and told you this was a potential problem with not re-decking, I would say you should pay him for the repair. Typically only rotted or soft plywood/osb is replaced. While replacing a roof is an expensive undertaking, it’s certainly less costly in the long run than replacing stained drywall, waterlogged framing and joists, or water-damaged electrical systems. Im willing to guess that they where not broken till the roof was installed and walked on or nailed into. Because they probably could of hit ya for so much per foot unless the deal was free wood work? Home Roofing 5 Consequences of Not Replacing Your Roof on Time. The main time that a roofing crew would replace the flashing is if your insurance adjuster allots extra money for the replacement of the flashing and ... which may spare you the removal and disposal expense of up to $1 per sq.ft. If the plywood warps on a roof, it's because there has been so much moisture, that the plies are almost complete delaminated. It has a nature to dry out, not rotted, but when you hit it with a hammer, it splits and cracks and yes, falls in. Now it’s time to replace the roof plywood and any other damaged wood in the roof area. You won’t know if you need decking repairs (most likely) or full replacement (less likely) until the shingles are removed. And yes the other people here are absolutely right, you're really not going to know exactly how much of the sheathing on your roof deck is no good until you strip the roofing materials off the top of it. It was obvious that the roofer did not want to deal with the stucco that came down over the sidewall flashing. But you have three spots. Recently the roof started to leak. I would just like know if this is true from other roofers. 2. I suspect the roofer is saying no to redecking because it's not in his usual workflow, and he may not be equipped to do it properly. Probably from guys feet or throwing down materials too hard on your roof deck. However, your roofers may have also made a mistake by leaving behind decking that did need to be replaced. I’ll be on the road for a few months and won’t have time to complete these posts until after, but for those of you who’ve written wanting to see the rest of the project, hopefully this is better than nothing. I don't see a disadvantage of a plywood deck. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. Agreed. Replacing the plywood or OSB roof sheathing on your roof will require you to remove most, if not all, of your roofing material and underlay. I’m guessing this is not the case. If the shingles on your roof are disappearing as quickly as cake at a toddler’s birthday party, it’s probably time to replace your roof. If plywood is not dealt with properly, it can swell and create major problems with roofing, flooring or siding. Unfortunatly because you chose to not sheet your roof this has become an issue. Roofer says I do not need to replace my plywood should I insist on it? For understanding how OSB can fail, google "OSB Failure", and pick through a number of articles that go into some detail about the modes of failure. This kind of plywood can be life-saving in the time of a crisis and is sometimes required in certain areas. I imagine he would fix this for you, and he should if he did not make this risk clear up front. They look like fresh breaks too. Sometimes it is easy to catch when your hammer falls it, but in one of your pictures, the last nail still had meat to hit and that was the one that split. It may not be enough to show up as a leak inside the house, but it clearly is leakage. Turns out I had a coworker who recently had a similar experience. When those are breached, as in cutting the panel and the cut is not immediately waterproofed, then the cut edge becomes a water sponge, which swells the panel and can cause physical breakage of the glue and the wood chips. Every little imperfection under the shingles will show through. If yes, then it means your roof is allowing water entry through the nail holes. I would just contact the roofer and allow him to come out and make the proper repairs. The experience of dealing with roof leaks in roofs made from different materials. Our roof was replaced along with damaged plywood. A low-end roof replacement could cost as little as $1,200, while a high-end roof replacement cou 1 average replacement time calculated as. An experienced roofer can often see this at … The more I look @ it, even enlarged. I had a roofer come over who told me the reason why my shingles are the way they are (curled) is because there isn't enough ventilation and they are "baking from the inside". To start, ask your roofer why they chose not to replace your decking. The least susceptible to structural damage are solid wood planks - it takes a lot of persistent moisture before rot happens that compromises the structural integrity. of ventilation to sq.ft. (plywood) on some parts of the roof needed to be replaced but were not. Long Roofing’s SureStart PLUS® roofing warranty, which can cover your roof up to 50 years, provides another level of comfort and security. For example, bathroom fan venting into attic. Instead of water entry, isn't it also possible in this case that there's condensation on the underside due to insufficient ventilation? Two of those pics are on knots, and the 3rd you can see the row of nails where they hit the wood and (presumably) broke it. 3) Do I Have To Replace Damaged Decking? WARNING: This is really just a rough draft of the post, a collection of photos with captions. He said that the new tile should hide the waving. Roof decks on homes built before 1970 are often 1×8 fir pre-plywood shiplap. If you’re not satisfied with their answer, reach out to another roofer for a second opinion. OSB (the usual stuff, not the type rated for exterior exposure) is the worse, with the glue holding the chips dissolving or hydrolysing, without the resulting material having any structural integrity to hold together. This is somewhat understandable given the huge amou… - Is a soft spongy feeling when walking between rafters an indication If the old plywood was clean and not infested with dry rot or mold it should be OK to cover it with the new plywood. Another thing we would take into account is that the trusses may be the reason why the roof is wavy. Maintaining your roof will save you money. Because hidden damage to the roof structure should be fixed before … Over longer periods of time and with persistent moisture, the glue can undergo hydrolysis and break down. If your satellite dish guy gets up there & breaks his ankle he can sue your home owners insurance. New roof installed, but damaged wood not replaced. How does a roofing contractor determine that roof sheathing needs to be replaced ? to me it seems more expensive material and labor, and is a pain in the a$$ when you go to reroof… why do contractors even use the garbage. Required Dimensions of Plywood for Roofing. Edit: For those wanting a better insight into the properties of OSB, and its ratings, go the association web site at APA, and download their APA Performance Rated Panels Product Guide. For example, wood shake shing… You won’t have to worry about the material expanding anytime soon, like when you use OSB.

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