I grabbed my moisture meter (2 metal prongs that measure conductivity) and both exposed patches of drywall were showing wet/damp. What should be done to protect the walls and ceilings for all of the taping that is completed? Myron, What temp you can instal dry wall and paint the room want to do the job don’t have heat So ventilation and circulation is important. Your email address will not be published. Please help. Sounds to me like your tempt and humidity are unstable I was surprised to find a worker applying joint compound when the temperature was 37 degrees outside, and no heat in the addition where he was mudding. The current Ubari Lakes are a group of about 20 lakes, set amidst the landscape of towering dunes and palm fringed oases of the Ubari Sand Sea.Â, Among the most picturesque of the lakes are, Precise dating of the lakes is yet to be confirmed, but current studies, conducted by the Fezzan Project, suggest Pleistocene and Holocene(11,500-11,700 years) human presence. Run a dehumidifier if necessary. The current Ubari Lakes are a group of about 20 lakes, set amidst the landscape of towering dunes and palm fringed oases of the Ubari Sand Sea. Among the most picturesque of the lakes are Gaberoun and Umm al-Maa (the Mother of Water). Absolute humidity is the mass of water vapor contained in a given volume of air. If from inside the space between try having landlord put baking soda in the space between. Our only other option is to put some type of wood board over the drywall or just boards trying to hide the ugly seams. Myron. Water vapor in air has a maximum storage capacity, depending on temperature. The addition is in western Washington where there is a lot of moisture. I want to hold the contractor accountable, given he well knew the conditions!! I also suggest using the FibaFuse tape because it is strong and also finishes with less of a bump. Once a seam cracks it is difficult to fix unless you can basically start over. Thanks, Hi Thomas, It is not only about the temperature but also the humidity and airflow. Good article, wish I’ve seen it earlier. FYI this was done in the spring and the temp was warm. 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. We noticed water leaking out of the bottom of one of the walls.  -Gypsum board and joint treatment should not be applied to cold or damp surfaces. Close all amenities and easy access to the highway. These sediments are abruptly overlain by laminated limestone with evidence of rootlets and bioturbation. The sub-floor and tubing is covered by concrete, gypcrete, or dry-tamped mortar, providing a solid seal. This is common in cold weather construction. Fans were runs to help circulate the air and even  some windows  were partway open  to help dump humid air created while taping. 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 ?? should not proceed until previous applications are completely dry. I guess the ideal situation would be to have the air conditioning on but it is not installed yet. Whats the best way to fix this to eliminate them returning? Make a paste on the very dry side to not cause damage and apply to the area affected, remove and wipe clean. Did we make a mistake closing the windows with the heater? It was then that I realized there is a 10 to 15 mph wind. Furthermore, that night, the temp was going to drop to 27 degrees. Hurricane Jose- the second Irma haunts the Caribbean. hours when the weather is cool or damp. Brand New Sunny Basement for rent in South Edmonton.  -For mechanical installation of gypsum board, room temperature should be maintained at not less than 40oF Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links.It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, and insulation for high tension (high voltage) electrical cables. My drywaller seems to feel that the problem was high humidity in the house during June. But at 70 degrees and 25% humidity all you need is 11.5 hours. Thank you for your knowledge! Fezzan is a large closed basin with an area of 450,000 sq km, containing a large palaeolake,termed as Lake Mega-Faezzan. Observing the following precautions during periods of cold and damp weather will reduce job problems. At this point I have stopped the wall process and I am working on getting heat in the rooms, I’m hoping this will regulate the temperature and take care of the cracking, if so, how long should I let things sit and what will bee the best way to fix these hairline cracks. 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. 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. No mud and tape but looks like a light coat of teal paint was applied. What should we do? We had the drywall person hang and tape a 24 by 32 addition with2x6 studalls and a valued ceiling. It has been a damn cool spring so we have had days where it is below 50 degrees with dew points at 46 to 48 with constant fog in the mornings. Required fields are marked *. I can’t imagine you having to tear out the drywall. The angle of the light definitely may make the seams more pronounced. By July, I could see noticeable bulges on the horizontal seams of a cathedral ceiling. Lake sediments and various geochemical crusts demonstrate the existence of open water bodies and a higher groundwater table during several geological phases. All is well for 2-1/2 months. The main river systems that fed the giant lake:-Tasilli N’Ajjer and Hamada Mangueni, situated in the proximity of Lake Umm-al-maa probably went dry. The archaeological finds from the area include dark layers of organic matters, shells, hand axes and other Palaeolithic and Neolithic implements and tools which strongly suggested ancient human activity in Fezzan.Â. Six stratigraphic sections were measured in detail in different parts of the Fezzan basin. Anyone coming across this lake after a long relentless walk in this Saharan desert would pounce to drink this water- but the salinity of this lake is five times saltier than saltwater! The one flag I see here is the high heat and humidity while finishing. Excessive humidity this Spring as building was being enclosed. What do you recommend? At least five of these depositional cycles were identified in a single section, suggesting at least five humid arid cycles. Subsequent finishing and texturing decoration. Hi Myron; I really enjoyed your article on humidity and drywall. Seams were feathered over a 1 week. Which does help. Do you know anything about installing over gypcrete? Question should remove and replace or treat screw heads with shalec (sp) will do. There are no signs of roof leaks or puddling. It won’t be asy to fix especially if the damage is extensive. In various places around the house we installed a gypcrete leveling course (1/2″ – 5/8″) and then a glued down engineered wood. What would cause moisture to build p in the wall cavity and how do we get rid of the moisture? This often takes between 36 and 48 Archaeological research revealed the existence of several fresh-water paleolakes, in ancient Fezzan, Libya. The finely feathered edges has Expanded. Then re-taped. The fans help but not as much as dehumidifying and running fans. This compression is caused by expansion of the drywall and the result is panel edges being forced together. Sounds like you did get right down to the tape but still had problems. - not less than 50oF (10oC) for adhesive application of gypsum board and for joint treatment, texturing and Myron. After the inspection, I was confident that along the thermal boundary there was an excellent air barrier. FROM GYPSUM.ORG: GYPSUM BOARD WINTER RELATED INSTALLATION – RECOMMENDATIONS- (GA-220-06) Certain temporary heaters introduce large amounts of water vapor into the air causing high humidity conditions if not properly ventilated. Under the wood paneling there is unfinished drywall. Use FLIR PRO ONE LT for water, damage assessment, leak detection, and monitoring the drying process. (eg. The visible seams could just be the result of shadowing along the slight bump that was created while taping. Numerous lakes were thought to have covered the eastern and southern regions of the sea, some of which still exist today, as in the case of Gaberoun, Umm al-Maa and Maafu, where the land surface intercepts the water table. 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. Ready-mixed joint compounds and textures Okay, similar problem, I guess. Should only take a couple hours max to address. (5oC). This was like a dream job so I better do a great job because I won’t have any excuses. However, there were no signs of water leakage (i.e. When a temporary heat source is used, the temperature should not exceed 95 degrees Fahrenheit (35degrees C)  in any given room or area. It is very humid and hot in NC and and opening the windows makes it worse. Tear out the drywall and start over? What is the problem and how can we fix it? Get things dried out and under control. Everything sanded. So do as much air sealing as possible and control the humidity. Use setting-type compounds to avoid many cold weather related problems. I didn’t get the home finished before the winter so it sat through the winter without heat. Alert John and Chris – re Drywall at Beach City Project. So, the door has had a hole in it for that period of time. Thank you for this article. Good luck, The builders removed the deadbolt from the door due a problem with it over a week ago. Ended up drywalling the ceiling and painted all in two days, I noticed that they were using a hair dryer to dry the mud so they could put the second coat of tape and paint. Thanks for your advice! My question is after my final coat is sanded either a nail hole or a seam doesnt matter, I feather my edges Perfectly. A sharp boundary between the light areas associated with gypsum and darker regions corresponding to the piedmont sandstone, extends along the base of the escarpment of the large palaeolake. Having same problem on level 5. Sounds like a venting problem. The biggest problem you will have is hiding the bump you will create by applying new tape and more compound. Provide sufficient ventilation to ensure normal drying conditions. Crawlspace attic above with gable vent. This air barrier should be continuous along where the insulation, is starting along the basement walls and including rim and ban joist areas as well as the ceilings that are adjacent to attics. Cold and damp weather conditions can contribute to joint compound bond failure, delayed shrinkage, beading, nail popping, joint shadowing and board sagging. Warm air can store lots of moisture as vapor in the air, cold air can store only very little. The outside humidity has been 90% or higher. I don’t think the light weight compounds perform as well either. I just finished taping a house yesterday and the temp and humidity will be very high the next few days and I am not worried. The vertical butt joints are not visible. Both archaeological remains and geomorphological evidence in Fazzan indicate that this currently hyper-arid region experienced wetter phases in the past. In most cases, the floor is finished using ceramic floor tiles, as these also hold heat well. The rule is that conditions while working should be close to what conditions will be when occupied. Hi Lani, I think you should close off the doorway opening and then run some dehumidifiers to keep the humidity low and fans to circulate the air. Now the drywall is cracking and screw dimples are protruding above drywall surface. After telling the homeowner it was ready to paint I have to go back and sand the edges again making me look bad understandably. James Hardie HardieBacker 1/4 in. To better understand temperature and humidity I decided that I needed to study my building science . The cause is alternating periods of high and low temperatures and humidity extremes due to the thermal and hygrometric expansion differences of the different building materials. I think you should sand down to the tape and then because the mesh tape will be difficult to remove just V out the center which will expose the seam between the sheets of drywall. No one is living in the house so it went unnoticed for a week. Your email address will not be published. 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. Add the baking soda mix then the peroxide. Mix outdoors. Heaters should not be allowed to blow directly on wall surfaces. While the ceiling was insulated with normal pink roll insulation, the tin roof above would condensate every time the rain would drop the temperature. - Ventilation shall be provided to ensure normal drying conditions. The insulation transfers the moisture and holds onto it keeping moisture closest to the source of cold. Hi Bob, Whenever I see a painted surface discoloring or coming loose it is because of moisture. The heat was on for several weeks, which allowed  the  building  to dry out. Laminated lacustrine sediments of Megafazzan. gypsum board should be completely dry before taping and finishing. Spills should be removed immediately with an absorbent cotton cloth and clean water. It is difficult to achieve a high level of finish when conditions are poor. These sections are composed of cycles that consist of greenish or reddish sandstone at the base that changes laterally into siltstones that exhibit evidence of soil development and other evidence of sub-aerial exposure including root casts, gypsum pseudomorphs, desiccation cracks now filled by silica and calcite.

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