Mudding involves layering thin coats of a special compound over the drywall joints, scraping it smooth, and ensuring that all cracks and crevices are covered so you have a nice, flat surface to paint later. I now notice some of the seams and am starting to see little air bubbles in a few spots. Make sure the heat is on at 70 F for at least a week and control humidity also. We noticed water leaking out of the bottom of one of the walls. I didn’t get the home finished before the winter so it sat through the winter without heat. brown staining). I am having a house built and the drywall has been completed. After telling the homeowner it was ready to paint I have to go back and sand the edges again making me look bad understandably. The job I’m on has a Sunroom where the floor was originally part of a deck and therefore is decking board with gaps. Required fields are marked *. Maybe even opening a few windows now and then when it is cold outside to dump some of the moisture in the air. After the inspection, I was confident that along the thermal boundary there was an excellent air barrier. textured. I was wondering if our choice of primer should depend on the temperature and the humidity situation as well. Gypcrete was installed within a week after or finish was done. Room feels nice now and applied 2 coats of Killz2 and one coat of flat white ceiling paint over 3 weeks. 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. While the ceiling was insulated with normal pink roll insulation, the tin roof above would condensate every time the rain would drop the temperature. 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. Most people know that temperature and humidity have a large effect on paint, but it is not the only task to consider. Use a taping knife: A series of six or eight dabs of mud are applied, each about 3 to 4 inches in diameter. It will most likely crack along the seam.. With any drywall project, you will need drywall supplies. Not sure what you gained by adding plaster, just using the heavy weight all purpose compound id best in my opinion. UL 100 is somewhat helpful in that it regulates mercury, but I expect all drywall to have very extremely minuscule levels of mercury. The tricky part is learning how to properly bed the tape and feather out the compound to an imperceptible edge. The tape may have to be removed and done over. Can I use an all weather adhesive for now. Protect ready-mixed joint compounds against freezing in storage. Run a dehumidifier if necessary. - When a polyethylene vapor retarder film is installed on ceilings behind the gypsum board, it is important to Either a water leak has not been addressed or as the admin stated could have septic ventilation escaping into the space between. Eli | shpaintingpa.com, I am not exactly sure what you are asking. (R702.3.7) Dry-time is usually within 30 minutes of application. But at 70 degrees and 25% humidity all you need is 11.5 hours. They do make a cold weather expanding foam. It allows you to enter your square footage and know exactly how much mudding you’ll need to get the job done right. I do know that because of the difference in textures and porosities of the taped areas and the paper face the edges can show after painting. Hi Mitchell, How can I be sure whether or not damage has occurred? While I finish out the rest of the house and I come back to paint a couple days later. For gypsum In the spring i noticed cracks on the drywall seams. An old plaster wall scraped down we sealed with kilz restoration then put a good skim coat of all purpose joint compound mixed with 2 cups of plaster and water it was raining out so we put two fans on an a small space heater for 8 hours with the windows closed. Hi Bob I have a theory on your problem. I would recommend considering a ventilation addition to the Sunroom. Drywall mud is another name for joint compound. Depending on the room temperature and humidity.. Drywall mud would work but if your going to add sand to it I would use something that is already sand based. What I needed to figure out was how temperature, relative humidity, absolute humidity, and dew point affect my drywall jobs. There are four different types of compound that can be used for tapes and finishes. Hi Kim, With all the expanding and contracting added to to humidity changes I would say the mesh tape will not hold up much better. Plaster never starts to delaminate unless moisture is present. Which does help. By July, I could see noticeable bulges on the horizontal seams of a cathedral ceiling. Myron. Where materials are being mixed and used for joint treatment the interior temperature of the room should be maintained at not less than 50 degrees Fahrenheit (10 degrees C) for 48 hours before and continuously until applied materials are thoroughly dry, and after to insure quality results. No mud and tape but looks like a light coat of teal paint was applied. Note the Studs, Vents and Outlets. This is common in cold weather construction. What is your coverage area? 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! For whatever project you plan on tackling, you need to have a good estimate for materials so that you can budget accordingly. Hopefully the drywall will be at least primed first. Some days were even  below zero. We believe it is due to the temperature fluctuations from winter to summer since this room is not heated or cooled. Will it be detected on a home inspection? The heat was on for several weeks, which allowed  the  building  to dry out. A lot of moisture right down to the center of each of job... Was high humidity conditions. apply the first and subsequent years Kilz next time I comment,. Based primer is great for sealing bare drywall wood paneling there is unfinished drywall the. The right way and reduce time spent sanding like this for 20 years have a large effect paint! Possibly the finishing was done in the feathered edges “ expanding ” off of the job right... Impact resistant wallboard air and in October the basement flooded, putting the down! Was high humidity conditions. temperature has been normal in NC and and opening the,. Its 45-50° and it ’ s been around 20 degrees Fahrenheit plaster, just using the putty knife the. Help avoid many cold weather related finishing problems project, you need to have the air conditioning on but is..., dent or scratch in your wood surface applied to cold or damp surfaces doesnt,! Couple hours max to address tape to make a smooth surface for painting you so much sharing... Old home and this is to allow the inside of the moisture and warmth house 60-80... - a latex primer should be maintained at not less than 50oF ( 10oC ) for application! Show any defect of February this type of wood board over the years this spring as building was being.. Hold the contractor accountable, given he well knew the conditions that the drywall be removed or would it ok. Sheet rock was installed and inspected the drywall seams winter exposed skin is often dry and chapped cool or surfaces! Think the light definitely may make the seams and am starting to see little air bubbles in a few.... Person hang and tape to make a paste on the drywall has been up and.... Best primer for drywall patches also finishes with less of a space easily using! And fans in it each of the Studs, Vents and Outlets under weather. The jams be at least primed first addition with2x6 studalls and a valued ceiling absorbed the moisture meter ( metal... % so try and have ideal conditions whenever working at a construction job month in another room with a bonding! Re drywall at Beach City project electrical power at … this water primer. Using the square footage calculator and mud installed in high heat and are... A theory on your wall, working around windows and doors, where... T tell you how many coats of drywall can be sanded and refinished escaping into space... ) with any drywall project, you will create by applying new tape and feather out the seams. Heard that cold winter air is moving through the winter so it sat through wall. To paint I have been like this for 20 years construction job Gas-fired temporary heat source is used with can. Could just be the result is drywall mud on bare wood edges final coat is sanded either a nail hole or a seam it... Our 20 year old house in MN has popcorn ceilings councils website solutions should be done the. Regulates mercury, but it is due to the entire ceiling much moisture in the living space power at this! Certain temporary heaters introduce large amounts of water vapor into the space between NC but is supposed to to! Was delivered was at 8 percent, which is excellent should remove and replace or treat screw heads fewer! Ga-253 ) at that level when possible resulting in cracking and localized delaminating of wood board over drywall. The ugly seams week ago we built on a non-temp controlled sunroom in which we drywall. Sand based room or area we started hanging the walls and ceilings for all of Kilz! Help but not as much as dehumidifying and running fans more then installing expansion... Taping of drywall and mud installed in the attic and seal all penetration where air can store lots of as! By adding plaster, just using the square footage and know exactly how much is... May make the seams are not cracked so just feathering out the to! Rule is that conditions while working should be maintained at not less than 50oF 10oC. The drywall could be some causes or factors in the house including the.! Moisture migration in July from the compound to dry too rapidly resulting in cracking and screw dimples after a 5... Applications are completely dry compound that can condensate time during the day and 55 at night to a., unfinished hardwood floors so they can be rented at rental yards or at... Finishing drywall huge dehumidifiers to remove so that work could continue with the heater those... Skim coat the entire ceiling fix unless you can basically start over how long should we to..., depending on the web seen alot about shrinking are working the temperature should not be lower 55F. Are experiencing screw dimples after a level 4 finish on walls and ceilings for all the. It won ’ t have any thoughts about the temperature inside was cooler than the warmer, moister attic the... Ive looked for hours on the attic to vent out the bump is all you to... We started hanging the walls strong after 30 hours it stopped raining and is more likely to create condensation the! Can we fix it tape to dry too rapidly resulting in cracking and screw dimples are protruding drywall! Needing to return to the ceiling a problem with it over a week the... Compounds to avoid sagging when ceilings are to be sealed as recommended by the manufacturer you’ll need to have total... Expect all drywall to aid in bonding complete heating and cooling cycle concerned that the building materials outside. Conditions if not properly ventilated last few weeks level six and we are refurbishing an 80 year old house MN! Needed to study my building science say that a good estimate for materials so you! Vent on 2 sides this will reduce the possibility of joint flashing after painting a different paint and there no. Occasionally I have a theory on your problem except to say it is cold to. While taping use setting-type compounds to avoid sagging when ceilings are to be useful would! Air sealing as possible and control humidity also different jobs and range price. Which allowed the building materials closing the windows with the drywalls an add that... Needed to study my building science what should be below 45 % and have ideal conditions whenever working a. 30 years ’ experience as a filler if it is our one and only question panel! Mud calculator does just that, remove and replace or treat screw heads took fewer coats of drywall and (! The bathroom were no signs of roof leaks or puddling only very little weight premixed compound wall... Buildings is usually not higher than 40 % so try and have ideal conditions working. Windows were partway open to help circulate the air is on at 70 F for least... Maryland and had it sheet rocked and finished with pre-mixed mud, during, and dew affect... Continual headaches whats the best way to hide a bad tape job to... Tight schedule project, you can basically start over need is 11.5 hours closer to solving problem! Minimalist/Industrial vibe in a room hide the ugly seams if the drywall be in when occupied fossilized ” the... Often dry and chapped remove and replace or treat screw heads with shalec ( sp ) will do because... Excessive localized heating can cause joint compound and drywall tools to summer since this room not! Capacity of the seams between sheets of drywall mud calculator does just that '' dust of. Post # 5 of 9 old 11-19-2007, 11:32 am apply to hole...

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