After a long summer of hot weather, it's nice to see the temperature cool down. However, it can be difficult for construction workers who will now spend their days in the cold as the frigid air presents its own set of unique challenges for those on the job site. Due to the varying weather conditions, the cold can greatly affect construction projects. For instance, freezing subgrade and adhesives can affect the projects' construction, so adopting a plan to include snow could prevent future construction delays. There's no need to avoid construction during the winter. So it's crucial that your team has the necessary experience to handle the challenges that come with these harsh weather conditions. Here are five ways construction is impacted by winter weather, along with ways creative contractors work around them. 1. Frozen Earth Can Cause Challenged for Grading & Foundations Compactified ground is very important for a well-built and long-lasting property. Modern techniques and equipment make it easier to subgrade, especially when dealing with the hard winter earth. However, prolonged cold temperatures can still cause subgrade ice, which can make digging in this area difficult. Workers attempting to properly compact the earth may encounter issues with underground moisture. The water trapped in subgrade freeze will expand and offset the surface around it as the ground warms up. As the ground begins to fill in the pockets, it shifts the buildings and land around them. Although contractors can still work on foundations and grade during the winter, it will take longer than in warmer months. Finding a team with the necessary equipment and knowledge to properly compact the ground is imperative. Having the proper equipment and experience working with a reputable excavator or site contractor can help prevent issues with subgrade ice. 2. Cold Weather can Weaken Concrete Despite its durability and strength, concrete can still experience issues due to low temperatures. The strength of concrete depends on how quickly it can dry, and the cold weather can affect this process. The American Concrete Institute states that if the temperature drops below 40 degrees within the first 24 hours, the concrete may lose half its strength. If it's cold enough for the concrete to freeze, it may have to be re-poured or torn up. Certain types of concrete can be used, along with ground-thawing machines, to combat the effects of the cold. 3. Mortar, Grout, & Adhesives May Not Work The cold weather can also affect the conditions of mortar, grout, and adhesive. As the water inside these components freezes, it can cause microscopic ice crystals to form, severely affecting their chemical composition. In some cases, contractors can heat the tiles, bricks, and other building materials to prepare the area for the bonding agent. They can then cover the finished part as it dries to strengthen the bond. Some types of adhesives come with polymers that can reduce the freezing point, and others are designed that require shorter curing times. If work is done inside a building, temporary heaters can warm the installation area. Before the start of the project, the materials should be stored in a heated area to ensure that the temperature will remain above 50 degrees.
4. Finishing Drywall Can Be a Challenge The temperatures needed to finish drywall should be higher to ensure that the various components, such as the drywall joint compound and paint, are dry and ready to be put back on the wall. Doing so at temperatures below 50 degrees can expose the workers to issues such as cracks and missing drywall boards. Fortunately, finishing drywall is done on the interior of a building, which allows workers to keep temperatures consistent throughout the year. If the building's heating system is not working, portable heaters can help create a more conducive environment for the workers applying the mud and paint. The team will have to maintain the area's temperature at around 50 to 55 degrees until the finished product is dried and set. 5. Snow and Ice Can Slow Progress Despite continuous efforts to combat the cold, ice and snow can still pose a threat to the working conditions of the workers. If the surfaces are not managed properly, these elements can make it difficult for the workers to perform their duties. Before the weather turns, the construction area can be treated with de-icing agents and salt to keep the site safe. Once the snow starts accumulating, workers can clear the way so work can continue. This is especially important when working on high-ground levels like roofs and scaffolds. Even if they have fall protection, they should still perform tasks elsewhere until the ice and snow melt. If extreme weather conditions continue, postponing high-risk activities should not have a major impact on the project if well-planned.