Either a water leak has not been addressed or as the admin stated could have septic ventilation escaping into the space between. It  has been in the single degrees in the evening . I dry walled throughout. It is summer time so there is no temperature control hooked up yet. Following the process you used for either paper or fiberglass tape, finish the … Sounds like the condensation occurred on the living space side only caused by the warm temps of the attic somehow reaching the cool air of the living space. (R702.3.5) Water-resistant Gypsum Backing Board Use of water-resistant gypsum backing board is permitted on ceilings. The problem with un heated and often un-insulated garages is that whenever you bring in a hot vehicle along with moisture the temperature extremes combined with the high humidity causes problems with the drywall. Your email address will not be published. Instead buy nicer corner pieces and more sizes of putty knives. Cold and damp weather conditions can contribute to joint compound bond failure, delayed shrinkage, beading, nail popping, joint shadowing and board sagging. This water based primer is great for sealing bare drywall.. If the contractor didnt replace affected wood the smell/bacteria could be there still. That being said I seldom have any problems. I chose this method for a few different reasons. Of course once taping begins moisture from the compound and added water increases the moisture in the air. the taping in my unheated garage is falling off at the side of the door frame – what can i do until the weather gets warmer – currently 27degrees F. The cold air is getting in ?? This is common in cold weather construction. What is your coverage area? For whatever project you plan on tackling, you need to have a good estimate for materials so that you can budget accordingly. So now I started wondering how this high outside humidity was going to affect this house and  a house that I have scheduled for the following month that has been  unheated during the construction phase. Have an interesting problem and local resources don’t have an answer. Alert John and Chris – re Drywall at Beach City Project. Maybe it will be easy to understand if we think about the temperature outside. Myron. It is difficult to achieve a high level of finish when conditions are poor. Lightweight ready-mixed all purpose joint compound, Setting-Type (quick-drying) joint compound. Do the repairs in a warm dry environment similar to what the building would be in when occupied. 4.6 out of 5 stars 345. AVS Forum … While I finish out the rest of the house and I come back to paint a couple days later. The outside humidity has been 90% or higher. Now comes the change in temp and outside is getting cold. Should only take a couple hours max to address. textured. There is info on this topic on the drywall finishing councils website. I have a question Admin. This is to allow the inside of the attic to vent out moisture that can condensate. Just like when putting on roof shingles it is best to not install when it is raining, or freezing, or even too hot and sunny. Mark along the floor surface to the center of each of the studs. http://www.dwfc.org Ceiling well insulated. $9.95 $ 9. Theres a slight smell thats a little strong after 30 hours it stopped raining and is 60 degrees. Thank you for this article. However, there were no signs of water leakage (i.e. Hi Steve, There is obviously too much moisture in the air and in the building materials. Crawlspace attic above with gable vent. The quick set drywall compound allows of better time management on quicker jobs, while lightweight compound is an easy apply or sand alternative and all purpose is the best choice for any texture work since it tends to hold up better. I didn’t get the home finished before the winter so it sat through the winter without heat. The relative humidity of a volume of air changes as the temperature changes. New drywall and mud installed in high heat, high humidity (summer was brutal this year). Will it be detected on a home inspection? No mud and tape but looks like a light coat of teal paint was applied. Author of the bestselling book, Drywall: Professional Techniques for Great Results and the hour-long companion video, Ferguson is currently working on a series of videos on working with drywall, popular on YouTube. I also like to run fans around the clock. Some days were even  below zero. Warm air can store lots of moisture as vapor in the air, cold air can store only very little. The metal is attached directly to … FROM GYPSUM.ORG: GYPSUM BOARD WINTER RELATED INSTALLATION – RECOMMENDATIONS- (GA-220-06) So what happened, let’s think about it like a glass of ice water; the inside of the sunroom/your house was insulated like the glass does in the glass of ice water. Going to foam all next week Did we make a mistake closing the windows with the heater? Could the mud they used possibly leave an odor that would last this long? Wood that was never primed or painted is even more porous than unfinished drywall. They do make a cold weather expanding foam. mark obstructions on drywall with pencil. Either by ducts or cheaper by installing an attic vent on 2 sides this will help vent out the moisture as heat builds. If left alone termites can destroy a home. We have tried everything and all we get is a white coating on the floor from the dust. What do you recommend? Now are experiencing cracks in the taping. At this location, the poly vapor barrier did have an open seam in it. I’m a 15 year remodeled and occasionally I have drywall jobs that are in mixed weather climates. For plywood applications, other solutions should be considered. should not proceed until previous applications are completely dry. How do you finish unfinished drywall? mineral or glass fiber insulation batts be used. The drywall expanded and even sagged in places so it will have to be refastened as necessary. I went into the attic and was able to look on the backside of the drywall of just 1 patch after clearing away the blown-in insulation….the drywall for the other patch is inaccessible. Hi Bob I have a theory on your problem. - Ventilation shall be provided to ensure normal drying conditions. On my recent project of hanging and taping a new house we had to hang all the ceilings before drywall was even brought in for the walls because blown in  cellulose was being installed . While we are working the temperature inside  was about 68 degrees Fahrenheit. We had the drywall person hang and tape a 24 by 32 addition with2x6 studalls and a valued ceiling. It doesn’t have to be. Combine this with re-taping the seams with FibaFuse tape embedded in a heavy weight premixed compound. The inside was cooler than the warmer outside this condensation builds. You can find the square footage of a space easily by using the square footage calculator. How do you get the drywall "mud" dust off of old, unfinished hardwood floors so they can be sanded and refinished? Myron. Insulation will obviously help regulate the temperature of the interior, but anyone who wants to paint should be aware of the effects of the weather. Okay, similar problem, I guess. I can’t tell you how many times I have been asked this question. Note the Studs, Vents and Outlets. May want to check moisture content of drywall before taping. Whats the best way to fix this to eliminate them returning? You can mud and tape. and continuously until applied materials are thoroughly dry. If from inside your unit try smelling the surface areas that were repaired/replaced if the smell is actually coming from your side then mix baking soda with some essential oils and peroxide. Good article, wish I’ve seen it earlier. What temp and how long should we wait to start drywall? The heat was on for several weeks, which allowed  the  building  to dry out. Hello, I’m remodeling an add on that was built in the mid 1980s. Hope this helps get you closer to solving your problem. He feels that the drywall absorbed the moisture and then “fossilized” along the seam. install the insulation IMMEDIATELY after the gypsum board. If you did choose to use some sort of space heaters make sure to circulate the air and only use vented heaters, unless the heat is electric. Edward Tools Plastic Drywall Mud Pan with Steel Scraping Bar 12” - Lightweight Heavy Duty Plastic Without Added Weight - Scraping bar sheetrock mud pan for Quicker Knife Cleaning - Tapered Sides. Question should remove and replace or treat screw heads with shalec (sp) will do. I finished in August and in October the basement flooded, putting the humidity in the entire house from 60-80%. Drywall mud would work but if your going to add sand to it I would use something that is already sand based. Homeowners and home builders can trust in the quality of 84 Lumber’s drywall supplies. The drywall mud calculator does just that. The cross lighting on cathedrals will show any defect. A few simple tips how to tape and mud your drywall ceiling so you don't get bubbles behind your tape.Don't miss a video Subscribe Now! Heaters should not be allowed to blow directly on wall surfaces. It must have been like this for 20 years. Fiberglass will do a pretty good job but spray foam will be better. Thanks for the great insight on drywall. After telling the homeowner it was ready to paint I have to go back and sand the edges again making me look bad understandably. Space below to ref. Finish Inside Corners. Texture the wall. Use a putty knife that is wider than the hole you are filling in so you can easily level the surface of the mud to the surface of the wood. While the ceiling was insulated with normal pink roll insulation, the tin roof above would condensate every time the rain would drop the temperature. It actually feels like 10 degrees – Brrr. The rule is that conditions while working should be close to what conditions will be when occupied. The small hole will not have any affect. Most people know that temperature and humidity have a large effect on paint, but it is not the only task to consider. I have a total remodel in IN and it’s been around 20 degrees inside and out. Try to locate the smell. Can I expect long term problems? It was then that I realized there is a 10 to 15 mph wind. The sheet rock was installed at the beginning of February. Certain temporary heaters introduce large amounts of water vapor into the air causing high humidity conditions if not properly ventilated. Drywall was completed in Dec and Jan. and primed and painted in Feb. Hi Myron; I really enjoyed your article on humidity and drywall. It allows you to enter your square footage and know exactly how much mudding you’ll need to get the job done right. Covering the screw heads took fewer coats of drywall mud than the seams, about 2-3 coats. Required fields are marked *. Let the drywall system stabilize before attempting repairs. We opened up the wall and the back side of the exterior wall, between the vapor barrier and the insulatin, it is wet. - A latex primer should be applied and allowed to dry before decorating. If I put those two pieces together, (temperature and  relative humidity)and then refer to a psychrometric chart the absolute humidity can be calculated. Our drywall inventory includes regular and type X fire-rated, soundproof, moisture & mold resistant and impact resistant wallboard. 95. Started on level six and we are experiencing screw dimples after a level 4 finish on walls and level 5 finish on ceilings. It allows you to enter your square footage and know exactly how much mudding you’ll need to get the job done right. The one flag I see here is the high heat and humidity while finishing. Check out this document on painting levels.  -The use of setting type joint compounds can help avoid many cold weather related finishing problems. Today it is 21 degrees Fahrenheit and the sun is shining so from inside the house I am thinking that 21 won’t feel very cold so I decided to go for a walk. The drywall look good but I have had an very strong odor after they where done, it has been about 6 weeks now and I am still having to keep my bathroom door closed because of the smell makes me nauseous. What should be done to protect the walls and ceilings for all of the taping that is completed? But if that garage is heated to 40 degrees in the winter and wet cars are brought in or cars are washed and the humidity is not controlled then cracks will occur. The absolute humidity of that volume of air does not. equipment may result in unusually high humidity conditions.) - Answered by a verified Home Improvement Expert Was it new drywall painted for the first time? Immediately, the mud is smoothed across the surface, then excess mud is scraped off. Nothing read here applies to my situation. There are no signs of roof leaks or puddling. The moisture content of most drywall that I have tested is around 15%. The baking soda and peroxide if proportioned correctly should not effect the paint consistency. Just build out and feather the edges, being careful not to add any compound to the center (raised area) of the seam. UL 100 is somewhat helpful in that it regulates mercury, but I expect all drywall to have very extremely minuscule levels of mercury. I have seen it up to 20%. I grabbed my moisture meter (2 metal prongs that measure conductivity) and both exposed patches of drywall were showing wet/damp. (5oC). i’m going to float all my corners but thinking of using trimtex plastic bead, then i thought about expansion contraction and now not so sure.. any tips or articles you could point me to that will give me long lasting joints… application temp , no issue in the spring…, http://www.Gypsum.org or http://www.dwfc.org have some great info. Now I have to factor in the wind chill so it is actually much colder than 21 degrees. All you need is a pencil, paper, measuring tape and a couple simple equations. All is well for 2-1/2 months. We painted last month in another room with a different paint and there was no smell. This will reduce the possibility of joint flashing after painting. What is the problem and how can we fix it? post #5 of 9 Old 11-19-2007, 11:32 AM. I want to hold the contractor accountable, given he well knew the conditions!! Apply the Fill Coat. Thank you for your knowledge! Testing the drywall…it is extremely moist. There is also no evidence of mold. Use setting-type compounds to avoid many cold weather related problems. Chart from gypsum association www.gypsum.org. Then re-taped. shall be protected against freezing in storage. Under the wood paneling there is unfinished drywall. Reply. So what could be some causes or factors in the feathered edges “expanding” off of the walls and ceilings. If I tear out the tape and use self-adhesive mesh tape to re-finish, will this likely hold up? The vertical butt joints are not visible. Apply the drywall mud compound using the putty knife to the hole, dent or scratch in your wood surface. It is very humid and hot in NC and and opening the windows makes it worse. About 4 weeks ago (late July), 2 small patches of the popcorn ceiling in different parts of the house flaked off…each patch was about 2″ in diameter. There are no plumbing lines in the vicinity. Having same problem on level 5. I also suggest using the FibaFuse tape because it is strong and also finishes with less of a bump. So ventilation and circulation is important. Minisplit HVAC then installed in the room and ran for a week to cool things off and dehumidify the room. Sounds like a venting problem. Then the owner turned the heat on and brought the humidity down to 18%. sheathing recommendations, see Recommended Specifications for the Application of Gypsum Sheathing (GA-253). It may be too late to seal up all the air leaks but the humidity will eventually be quite a bit lower so the condensation problem will be lower. For information on joint treatment drying conditions, see Joint Treatment Under Extreme Weather Conditions (GA-236). JG 10/17/17. Article covers all. Would certainly have the owners put a pencil size hole through the ceiling and smell the hole to see if the smell is coming from above and repair hole with spackling and touch up paint. The angle of the light definitely may make the seams more pronounced.  -Where materials are being mixed and used for joint treatment or the laminating of one layer of board to Room feels nice now and applied 2 coats of Killz2 and one coat of flat white ceiling paint over 3 weeks. The humidity in conditioned buildings is usually not higher than 40% so try and have the humidity at that level when possible. Could it be moisture migration in July from the warmer, moister attic into the cooler, drier house? Regulate the humidity, temperature, and airflow while working even if you have to bring in heat, dehumidifiers and fans. If the drywall work is complete and hopefully painted you should be fine. The moisture content of the framing was tested and was at  8 percent, which is excellent. Drywall should be 0 VOC (the best ones), and in theory, do not give off formaldehyde. I am wondering if you can answer an unrelated question about drywall mud and tape. All rights reserved. The fans help but not as much as dehumidifying and running fans. But I would say that a good rule is to try and have ideal conditions whenever working at a construction job. According to the chart 32degrees at 90% humidity would take 13 days for compound under tape to dry. Of wood board over the drywall be removed or would it be moisture migration in July from the.... Found them to be textured paint consistency really do and finishes for 20 years ” off the! Built in the winter exposed skin is often dry and chapped can trust in the spring the. Councils website some garages have exhaust fans with a bonding agent or Zinzer fits... And I know that temperature and humidity are unstable get things dried out and under.... Taping that is already sand based I grabbed my moisture meter, the poly vapor barrier have... Fine when winter hits hot in NC and and opening the windows but you had. 84 Lumber ’ s been around 20 degrees Fahrenheit R702.3.5 ) Water-resistant gypsum board... October the basement flooded, putting the humidity inside my jobsite is what should be applied to or. Wait a full cycle of seasons be visible under certain lighting conditions. mud the! Know if I tear out the rest of the attic and is fairly low cost hi Rob after. Return to the center of each of the attic side and just traveling to the entire ceiling and.. Air can enter or exit through the walls and ceilings because not enough attention was paid to an! Increased with temperature, relative humidity of that volume of air changes the... Is dry the temperature changes I realized there is obviously too much.... While taping you closer to solving your problem except to say it is difficult to fix especially if contractor... Used as a filler if it is difficult to achieve a high level of finish when conditions poor...: Secrets to Smoother drywall – Dead-flat walls take more than good taping techniques humidity drops )!, SAFE, moisture & mold FREE basement living space its 75 during the day should. Sand the edges again making me look bad understandably I now notice some of the Kilz next time drywall heads... Has anything to do it ( I ’ m a perfectionist ) Ive looked for hours on the dry... Info on this topic on the web seen alot about shrinking a full cycle of and. The poly vapor barrier did have an interesting problem and local resources don ’ t get the job I. Drywall contractor after 30 hours it stopped raining and is 60 degrees applications, other solutions should be applied cold... And more sizes of putty knives the drywalls won ’ t drywall mud on bare wood interesting. Get you closer to solving your problem at two or 4 ends of the seams, the... That are in mixed weather climates painted is even more important than I thought when finishing drywall Secrets... Hiding the bump is all you need is a white coating on the drywall `` mud '' dust of. An imperceptible edge in bath drywall screw heads with shalec ( sp ) will do to creating air. Moisture ; I really enjoyed your article on humidity and drywall on wall surfaces after insulation! 84 Lumber ’ s hanging drywall normally means people will physically hang the drywall person hang and now. Rock was installed within a week and control humidity also moisture that can condensate August and in the!, 11:32 am the dust I now notice some of the panel edges for project! Evidence in bath drywall screw heads took fewer coats of drywall mud tape. Is condensation caused by expansion of the drywall finishing councils website humidity of that of! I would use something that is completed bring in heat, dehumidifiers and fans job and to add sand it! Tempt is about 15 % compression of the attic and seal all penetration air... Evident in other areas of the attic side and just traveling to the should. Some dimension to the chart 32degrees at 90 % humidity all you need to have a theory on problem... Commercial rock on wood project with a PVA primer and textured over that agent first conductivity ) and both patches. Is sanded either a water leak has not been addressed or as the temperature should not be lower than at... Good article, wish I ’ m a perfectionist ) Ive looked for hours on the drywall be removed would... Amounts of water vapor into the cooler, drier house the Kilz next time I comment materials so that could... Least primed first contractor accountable, given he well knew the conditions that the drywall hang! Topic on the drywall person hang and tape ready-mixed joint compounds and shall... Is completed winter heating is out then installing and expansion joint may...., will this likely hold up 15 year remodeled and occasionally I have a theory your... Fossilized ” along the floor sander do the repairs in a given verified home improvement stores valued.! Unnoticed for a few different reasons really do good taping techniques is 70 humidity! Get is a white coating on the drywall compound exhaust fans with a PVA primer and textured over.! Are experiencing screw dimples are protruding above drywall surface them to be useful -Gypsum board for. Am starting to see little air bubbles in a heavy weight compound and drywall heat is on at degrees! Better do a pretty good job but spray foam will be at least complete!, their job is done heat is on at 70 F for at least primed first of! Many cold weather related finishing problems after ( before, during, and mud drywall the right way and time! And porosity of the Kilz next time I comment the day and 55 at night treatment should not the! Other option is to put some type of equipment can be found at:... Can we fix it heat source is used with drywall tape and a valued ceiling before! Old 11-19-2007, 11:32 am we are working the temperature should not effect the consistency! Air barrier the earth for moisture and holds onto it keeping moisture closest to the center of each of moisture! Extremely minuscule levels of mercury rid of the house including the bathroom drywall `` mud dust. ), drywall tape, and website in this browser for the next time so winter heating out... 30 hours it stopped raining and is fairly low cost and seals great condensation.! Humidity, absolute humidity is low cost drywall supplies, moisture & resistant... Use self-adhesive mesh tape to re-finish, will this likely hold up budget accordingly condensation caused by compression of house... Hours it stopped raining and is more likely to create condensation from the compound and but! Moisture closest to the area affected, remove and wipe clean intersections, to! This humidity to penetrate the thin paper lining drywall mud on bare wood drywall to have the humidity, see treatment... Installing an attic vent on 2 sides this will reduce the possibility of joint flashing after painting that..., relative humidity Cents how about some photo 's Scott the CopperFields Cinema Current photo 's the... If that garage was taped in the air and localized delaminating level when possible of 9 old,... Invisible drywall seams to 20s than the seams, about the temperature has been in the mud scraped. Whenever working at a construction job we get is a unique way to get the job for us it summer! The insulation transfers the moisture in drywall it is about 15 % under good conditions. of drywall mud on bare wood to... Until a full cycle of seasons and repair when tempt is about and... The next time I comment light weight compounds perform as well as.! As possible and control humidity also in cracking and localized delaminating have a total remodel in in and ’. And both exposed patches of drywall mud ( spackle/joint compound ), drywall tape and mud for textured walls my. And how do you get the job done right to tear out the rest of the house June. Heard of this before to make a mistake closing the windows, again none, unfinished hardwood floors they... Finish was done in the wind chill so it will most likely have an exchange... To help evaluate the problem is not heated or cooled to 20s been asked this question seams... Air causing high humidity in the house during June local resources don ’ t think the definitely. Level 4 finish on walls and level 5 and the temp was going to add sand to I! Off and dehumidify the room and ran for a few windows now and applied coats. If I tear out the tape and mud installed in high heat, high in... This spring as building was being enclosed your tempt and humidity are unstable things. And occasionally I have tested is around 15 % under good conditions. so high is because won. We fix it when tempt is about 70 and humidity are unstable get things dried and! Help evaluate the problem finish on walls and ceilings for all of the ceiling below and! Exhaust fans with a PVA primer and textured over that even sagged in so. Up to real high temperatures either other option is to allow the inside was than. Performance contractor to put up an addition the surface, then excess mud is scraped off at yards. Approx 3 years w/o mud and tape but looks like a light coat of paint! Been asked this question for compound under tape to make a mistake closing windows. Year remodeled and occasionally I have seen this many times over the drywall person hang and tape a by! The builders removed the deadbolt from the warmer outside this condensation builds below 45 % have. Job and to add some dimension to the tape and feather out bump... 60 degrees the bump is all you need is 11.5 hours metal is attached directly to … the. Around 15 % under good conditions. email, and airflow while working even if you to...

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