Hand-sand the edges of the room where the drum sander could not reach. The floor is built as follows. Overlapping your passes will ensure that you don't miss any spots and you end up with any uneven sanding areas. If needed, use an extension cord to reach the nearest outlet. The weight of the machine makes it extremely easy to leave sanding marks. Wear a good respirator mask and safety glasses when using a drum sander. This could lead to hefty replacement costs. Human error is usually the cause of these imperfections, such as poor workmanship; running the machine in the wrong direction; running the machine at the wrong speed or at an inconsistent pace; inconsistent operator walking speed; inadequate first-cut angle; not enough overlap with each pass; too much drum pressure; power surges during operation or inadequate power. Sanding marks will be marks such as lines left by the granuales that are on the paper itself. Power up the machine, slowly start moving forward at the same time lower the drum control handle - feather touch. Even though the drum sander has a dust bag, the bag only collects the majority of dust, not all of it. 
With the sanding drum raised and the motor still running, reposition the sander about 4 inches to the side, then repeat the same forward-and-backward action to make the next pass. Once completed, continue on the opposite side of the room. 210 joists 16 on center, 11 span, x brasing, 3/4 cdx T&G sub floor. With tool turned off, wheel the sander to a position near one side wall, midway between the end walls, oriented in the same direction as the flooring boards. Refinishing Wood Floors, Using A Floor Edger, Residential flooring gallery Massachusetts, Domestic gallery, Images of Domestic wood, Exotic hardwood floors, Images of Exotic wood flooring, Hardwood flooring installation images massachusetts, Residential wood flooring gallery Massachusetts, Gandswoodfloors professional development - About us. 
Ask a rental employee to put on your first piece of sandpaper. Turn it on and when it comes up to full speed, slowly lower it to the floor. It is also an excellent project to prepare a home for real estate showings. The secret of Zen in two words is, "Not always so"! Move any wires and cables thatmay bein your way, continue with your hardwood floor refinishing, untilwhole entire roomis completed. Don't choose the wrong flooring company. Isolated sanding marks can be addressed by repairing/resanding individual areas. Drum floor sanders are unwieldy monsters that weigh over 100 pounds. This will take longer to complete. Using a hardwood drum sander takes practice and repetition to become good at it. By Brett Miller, NWFA Vice President Technical Standards, Training & Certification. To remove chatter, the first cut should be on a steep angle, followed by straight cuts, followed by use of a hard plate, multi-disc or planetary sander. If, you can avoid these two common mistakes. Dust bag gets full, you empty it. Remember, too, that you will need help with the sander when you get home. You got a newbie I suspect. These marks, also known as chatter marks, can be difficult to remove, especially if they are fairly deep into the wood. For now, you should just stick to the basic step by step procedure, to ensure you get the best results, at the end. Sweep and vacuum up all loose wood particles. Most sanding sleeves will sand 100 to 400 square feet before they need to be changed. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. The fact he is saying that the sub floor is bad is a "pass the buck" syndrome. you gave is going to bounce and cause ripples in the floor from a floor sander. Thus, drum sanding should be reserved for floors in serious need of refreshing. Sounds like he may not be going up to a 80 grit but doubt any floor guy is that stupid. Keep an eye on the dust bag, and empty it whenever it reaches about one-third full. This site is protected by reCAPTCHA and the Google. A lot of times the sanding marks in hardwood floors result from sandpaper grit that is too coarse. Put that drum down too hard, and you'll gouge the floor, Raise it too fast, and you'll have unevenness. Causes of wave can include the structural integrity of the floor being sanded or subfloor beneath it; foreign objects stuck on sander wheels/wheels out-of-round; knots or density differentials in the flooring, causing sanding inconsistencies; poorly maintained machine; power surges during operation/inadequate power; improper big machine sanding techniques; floor not properly sanded flat during initial cuts; inconsistent operator walking speed; improper abrasive selection/sequence; inadequate first-cut angle; operating the big machine in the wrong direction; not enough overlap with each pass of the big machine; or dust build-up within the machine. Note: Avoid bumping into the wall, this will apply pressure to the front of the sander downwards, resulting in gouges. Anybody worth hiring knows this and will feather out the drum as they approach wall and raise it off floor as they stop. Further, sanding a floor requires wrangling heavy power tools and some amount of time on hands and knees. This sometimes takes a few passes, depending on the wood flooring tool being used, horsepower and features makes a difference here. Lift the floor sander up when you turn it on so that the drum is off the floor. When you do get it home and begin using the sander, avoid using extension cords if possible. Invest in "Quality" for better service and hardwood flooring that can last a lifetime or centuries! And safety glasses are a mustdrum sanders create sparks when they hit nails and are capable of shooting particles. The Spruce uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Your starting side will be on the right and you should work towards the left. Sanding new boards along with adjoining old boards will help blend the repair area. Again, lift the drum as you reach spot where you started. With the tool turned off, practice raising the sanding drum by whatever method is appropriate for your sander, moving it to different positions on the floor, then lowering the drum back onto the floor. If the cause of the issue is with the equipment, abrasives, or jobsite, it must be corrected prior to attempting repairs. Start your subscription today and save up to 70%. He accepted the sub floor as adequate when he put down the firs plank. Here's a tip: If, you know how to Fly Fish, you can manage your wire easily. This is a dialog window which overlays the main content of the page. By clicking Accept All Cookies, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. When running the sander, you will be raising and lowering the sanding drum onto the floor as you begin and end each pass. The first pass of the sander is typically done with 40- or 60-grit sanding sleeve. Lift the drum sander up off the floor when turning it off. If board replacements are necessary, do this now. It is critical that the sanding passes overlap to ensure a smooth surface. There are advance sanding tricks fromnot having to do, all this work. Identifying and Correcting Sanding Imperfections, National Wood Flooring Association (NWFA), Product Selector a Highlight of Taylors Revamped Website, Case Study: Wilbur O. and Ann Powers College of Business, Clemson University, Clemson, SC, Contractor Issues: How to Prepare for a Legal Action, Training a Fundamental Part of NTCA Membership Benefits. If you must use one, choose a heavy-gauge extension cord according to the manufacturer's instructions. Are you getting the hang of things, yet? It's a job best done with a specialty floor sander. Close the cover. In this video, learn how hidden fasteners make for a seamless feature wall. When changing sanding sleeves, ALWAYS unplug the tool first. Start to move backwards, lower the lever - feather touch, then start to sand backwards. He is a certified lead carpenter and also holds a certification from the EPA. - M.K. This is followed by a second sanding with a 100-grit sleeve, and a final pass with a 120- grit sleeve. Memorize this motion, this is the same motion, you will use to raise and lower the drum, on the hardwood drum sander. You shouldn't have any sanding marks visible at all. Before beginning on your actual hardwood floor, it is a good idea to practice drum sanding technique on a sheet of plywood laid on the floor. How to Sand a Plywood Subfloor Prior to Hardwood Installation, How to Clean Vaseline Off of a Wooden Floor, How to Darken Prefinished Hardwood Flooring, How to Remove the Tile Off Hard Wood Floors and Refinish, Copyright 2022 Leaf Group Ltd. / Leaf Group Lifestyle, All Rights Reserved. Sanding a floor yourself is a tricky operation requiring specialty tools. Use of a hard plate, multi-disc or planetary sander also will help alleviate some sanding marks. Practice a few passes on a sheet of plywood, to get familiar with controlling the floor sander, and a good feel of the lever. Immediately allow the tool to "walk" slowly forward as you follow it toward the far end wall. Now, you will pull the tool backward along the same path to complete the sanding pass over the same section of floor. And if they refuse to fix it, they shouldn't get paid. Before we start, picture an airplane landing and taking off. If you look at the flooring layer along its edge, you will be able to see if it is solid hardwood or a veneer product, and verify that there is enough hardwood to tolerate a sanding that will remove as much as 1/16 inch of wood. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. until the boards are sanded even to each other. Removing the shoe molding will allow you to sand right up to the baseboard, leaving a sleek, professional look after you replace the molding after refinishing the floors. It is very often done when old carpeting is removed to expose a hardwood floor that was previously covered. We have a well trained staff and we never stop learning. If they didn't do this, they shouldn't be for hire. For finesse sanding, stain finish, Tungoil woodfinish, and 1 coatsystemsthat requires fine sanding. Clearly operator error. The motor on the drum floor sander draws so much power that it is possible to melt an improperly sized extension cord, resulting in an electrical fire. A second possible cause would be if they used a drum sander and the drum is not adjusted perfectly. Some are equipped with a 110 or 220v motor. If you find yourself questioning your ability or eagerness to tackle this job yourself, consider hiring a professional to sand and refinish your floor. Other causes include flooring installed parallel with floor joists; insufficient or loose fasteners, incorrect fastening schedules, etc. Other culprits can include running the machine outside of manufacturers recommendations; heeling the buffer; improper clocking of the buffer or edger; grit or debris left behind on the flooring that wasnt adequately vacuumed or otherwise removed during the sanding process; or skipping steps in the sanding process altogether.
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