Posted on May 15, 2014 May 15, 2014 by Katie. When my friends left that Thursday night (May 1st), we had torn up all the nails and crap. a simple pry bar under the edge will lift the whole sheet without much effort. When installing 1/2" CDX plywood over an OSB or plywood subfloor, it is not necessary to staple, glue, and screw. You’ll want the screw to go about an inch past the plywood into the joist or underlying layer beneath it. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. I'm looking for comments on if and when to use screws or staples to secure underlayment. Thoughts anyone? Cleaning and Leveling the Subfloor Remove the existing flooring if the room has any. Underlayments for vinyl flooring are usually 1/4" and it is stapled all of the time. Stapling down with 15 gauge 1&1/2" legged staples with 1/2" crowns alone is sufficient, as long as use use lots of staples. I have been installing for a living since 1973. The ads in my post are there without my permission. Have 1/2 "plywood underlayment to (staple?) The plywood becomes the new subfloor with the hardwood floor laying on top. 5/16 and thicker * 18-gauge staples with 3/16" crown may be used for 1/4" underlayment 3. Glue-Down Underlayment. Plywood wall sheathing without diagonal bracing 5/16 3/8 1/2 Plywood roof sheathing 5/16 3/8 1/2 Plywood subfloors 1/2 5/8 Plywood underlayment 1/4* 3/8 1/2 5/8 Asphalt shingles to plywood staples to have crown width of 3/4" min. Luan has voids in the plys which can collapse and luan can also bleed and stain vinyl. I generally nail 1/2 in but the only time I use it much is over old strip wood floors that are rough. Except for the first few years when I hand nailed with ring shank, I have stapled underlayment. You’ll need to drill through the wood and into the concrete to fasten it down. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Provide 2" expansion voids at the perimeter and at all vertical obstructions. I do not endorse any of the products. Does this sound familiar to anyone? Positioning SurePly® Premium Plywood Underlayment Use 1/4" crown and 1-1/2" in lenghth. What needs to be done is all the original subfloor needs to be screwed to the floor joists before you add additional plywood on top of it. Watch This Video Which Will Show You the basics of Stapling Plywood Subflooring Into … Improper spacing. Glue-Down Underlayment. I tried pulling some up as a test and this would be a nightmare to pull off. The second floor of this house is built with 2 x 10 wood I-joists (joists that resemble steel I-beams and are 9.5 inches thick), 16″ on center and spanning 13.5 feet. The plywood seams should meet over subfloor joints to ensure proper support. What needs to be done is all the original subfloor needs to be screwed to the floor joists before you add additional plywood on top of it. The subfloor is the decking installed on top of flooring joists; the finished floor is then installed on top of the subfloor. Helping You to Do It Yourself! Staples should be placed every two inches around the edge of the sheet and every four inches in the interior. If using 1/2" underlayment a 1/4" crown will still work IF you have a gun that will drive a staple a … Sorry Nester, most of that post was wrong. My project is the installation of vinyl sheet flooring in an addition (kitchen, bathroom and mudroom) with a crawlspace below - no basement. Furthermore, do I need an underlayment for hardwood floors? It can also be used under hardwood, laminate, and carpet, but this is much less common these days because subflooring is typically smooth enough for these materials, many of which are installed with a different type of underlayment … While staples are the quickest and easiest fastening option, it is best to use ring-shank and spiral-shank nails for installing plywood subfloors, as they feature grooves that resist withdrawal and increase friction. I use the term "underlayment" to mean a layer above the subfloor… Years ago when hardwood was the normal finish floor, builders used 1/2 subfloor and would use 19/32 in kitchens and other soft tile areas. • Nail-down subfloor: 5/8 -inch or thicker plywood panels are fastened every 12 inches on center and every 6 inches along the border. Plywood and OSB subfloors over joists are most common in newer homes and new construction, typically in homes with basements or crawlspaces. The warranty may require it. near the end of that time before they switched to 3/4 and carpet the better builders would nail and screw. Adhesive will help you here, as the subfloor plywood will have voids in spots that will not hold a fastener. We used 1/4crown staples on 3/8 over 3/4 but I've never stapled 1/2 in down though I have demoed some on a ceramic replacement that was, they didn't seem to hold that well but they skimped on the staples if I recall. • Sleeper (screed) system – Common over radiant heat, this system has 2-by-4s spaced 12 inches apart. And do NOT put glue between the underlayment and subfloor. This means that for 7/16" underlayment and 23/32" subfloor, the longest fastener you can use is 1-1/8". He said no because it wouldnt work(??? When I needed to level the subfloor in my master bedroom, I used 1/4" plywood, which was the replacement for the luan I requested. Screws can cause the plywood to pucker. Underlayments for vinyl flooring are usually 1/4" and it is stapled all of the time. We then install a layer of #30 felt paper, and add 3/8" or 1/2" BC plywood for underlayment. 029 2086 0222 Click to see full answer The thickness of plywood panels in a subfloor … Thoroughly scrape, sweep, and vacuum the entire surface and strip any wax from the existing vinyl. An underlayment is a necessity for any wood floor installation even on a plywood subfloor. A beautiful floor starts with a stable subfloor. Staples usually have a coating which help increase the holding power. Use 1/4" crown and 1-1/2" in lenghth. Attach second layer of subfloor material with nails or staples 12" O.C. 3/4 Inch Plywood Subfloor Preparation: Joist Installation. I have removed a lot of stapled underlayment. Install the plywood underlayment sheets one at a time, perpendicular to the placement of the subfloor sheets. I have never had a problem. Long ago I posted about my floor project. And joint compound should never be used as floor fill. Stapling down with 15 gauge 1&1/2" legged staples with 1/2" crowns alone is sufficient, as long as use use lots of staples. Which is good and bad. The plywood underlayment panels should be cut so that the factory edges go together at the seams in the field of the floor. The subfloor is installed BEFORE walls go up, and the underlayment is installed AFTER walls are in place. The screws were only on the long seam running perpendicular to the joists and between them. Plywood Thickness (in.) I'm looking for comments on if and when to use screws or staples to secure underlayment. Start in one corner of the room and lay a full sheet of luan perpendicular to the direction of the subfloor panels. Staples are fine and are used all the time nowadays to fasten plywood to original plywood. Leave a 1/16 inch gap between the walls and the luan panel. So if your subfloor is 3/4 of an inch thick, any screw about 1 3/4 inches long will do the trick. 2x8 stringers (14' span, planning to add/replace a beam at 10') with 3/4 T&G plywood subfloor. 1) Suitable Wood Flooring: Any. If your choose this route, staples are a good choice to fasten the underlayment. Reading this article makes me think I am going to have trouble with tile shifting if there are only staples instead of screws holding the cement board to the subfloor plywood. You are installing "underlayment" on top of your subfloor. The underlayment sheets usually run the same direction as the plywood subflooring, but it is critical that the seams of the underlayment are offset from those in the subflooring, so the underlayment bridges over the subfloor joints. (When using parquet, construction adhesive should also be used between the layers of plywood as recommended by the flooring system manufacturer.) For a better experience, please enable JavaScript in your browser before proceeding. Floor fill should be cement based not gypsum. If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long. Plywood can usually span slight imperfections and waves in the concrete, but check to see each 4x8 sheet is level and the same height across the floor. This is underlayment under vinyl flooring that will not be glued down(premium stuff that is real thick). JavaScript is disabled. Have more time to finish now! You want to choose fasteners that will not penetrate the bottom of the subfloor. I believe the information on the website I referenced above proves that it would wise to not use any underlayment other than appropriately graded APA plywood because it is the only material that all manufacturers of resilient flooring and adhesives agree is acceptable; it is clearly grade marked; and it is readily available. You should staple every 6 inches around the edges and every 8 inches at the centre of the plywood boarding. It's quality is unsurpassed, and it is extremly durable and long-lasting. Hand cut exterior edges for installation next to the walls. We use PL subfloor adhesive caulking in between the two layers of plywood and then staple it every 3-4 inches. Use a staple gun to insert 1/4-inch crown staples every 6 inches across the plane of the luan panel and every 2 inches along the edges. If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a … Start in one corner of the room and begin to lay a full panel of luan perpendicular to the form of the subfloor panels. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! )So now I am looking at buying my own stapler for this and other projects. I was planning to staple the cemnet board to the subfloor instead of screwing it. Say 4 or 6 inch squares? Use a staple gun to insert 1/4-inch crown staples every 6 inches across the plane of the luan panel and every 2 … Amoung Manufactuers of Vinyl Flooring, Hardwood Flooring, Tile Flooring, and Laminate Flooring, the choice is clear, and Luan is the … The ads in my post are there without my permission. I really like this staple method so far. 1/4" underlayment in my area doesn't hold up. If your choose this route, staples are a good choice to fasten the underlayment. The first 10 or so, we had a stapler we hit with a hammer. 2x8 stringers (14' span, planning to add/replace a beam at 10') with 3/4 T&G plywood subfloor. For a better experience, please enable JavaScript in your browser before proceeding. Install SurePly® plywood underlayment over a clean, dry, level, original sound structural subfloor, or existing floor. This means that for 7/16" underlayment and 23/32" subfloor, the longest fastener you can use is 1-1/8". Ideally, I would tear out the existing finish flooring, screw down the existing plank subfloor where loose, repair the plank subfloor where needed and then lay my new flooring (engineered hardwood) right over the existing plank subfloor. to 1/2" plywood subfloor. Staples are driven to leave a countersink finish. Install Luan with staples to the subfloor plywood using 1/2" staples. Staples usually have a coating which help increase the holding power. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. If your choose this route, staples are a good choice to fasten the underlayment. Staples are fine and are used all the time nowadays to fasten plywood to original plywood. Re-secure any loose wood subfloor planks, OSB, or plywood subfloors to the floor jo I'm told if screws protrude into the crawlspace they may wick moisture into the subfloor and underlayment, causing problems. Stagger IronPly ® plywood underlayment panels to create a 2" minimum offset between the IronPly ® plywood underlayment and subfloor seams. When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions. I have absolutely no doubt that staples would go in faster than screws and would hold well. JavaScript is disabled. Staple the boards in place. Run your plywood parallel to what is already down make sure your seams do not fall on those already there be 6-8ins offset screws 4' on seams 6-8' in the field. Leave a 1/16 inch gap between the walls and the luan panel. You will need a … The short answer: usually. The staples are indeed rosin coated and the rosin glue melts with the friction. There are different reasons why people decide installing new plywood, from replacing a bad sub-floor, to raising it to be higher & stronger. The crawlspace is partially heated. I own NO other air tools or nailers and would really like a framing nailer too. We use PL subfloor adhesive caulking in between the two layers of plywood and then staple it every 3-4 inches. Using Subfloor Screws to Correct Squeaky Floors . When subfloors are nailed in place, the floor can become extra squeaky, either almost immediately or over time. Hope your not using loun as an underlayment. Staining Plywood Subfloors. Staples usually have a coating which help increase the holding power . For this job, we'll be using foam underlayment, a stapler, tape, and a pair of scissors. All you you are attempting to do is add more rigidity to the subfloor and supply a superior nailing base. Staples are driven to leave a countersink finish. Unless you can glue down two layers of 1/2 inch plywood over the concrete (using bostik best flooring adhesive) and adding to the existing wood subfloor then run the 3/4 solid wood floor through out the whole area nailing/stapling it down with 2 inch nails/staples. The stapler saves a lot of time. Using my experience, I would fasten the underlayment with adhesive and 7/16-inch crown staples every 6 inches driven with a pneumatic stapler. All you you are attempting to do is add more rigidity to the subfloor and supply a superior nailing base. My project is the installation of vinyl sheet flooring in an addition (kitchen, bathroom and mudroom) with a crawlspace below - no basement. No offense Nestor, but I think most DIYers want to do the jobs the same way as a pro., if possible. Steps to Install 3/4 Inch Plywood Subfloor Step 1: Get the plywood to the right level of the house. When installing 1/2" CDX plywood over an OSB or plywood subfloor, it is not necessary to staple, glue, and screw. Using a crown compression stapler, staple 2 inches on the seams and edges with 4-6 inches apart in the middle. Chandler, I am installing smooth 1/4" plywood underlayment rated for the vinyl flooring. Using a crown compression stapler, staple 2 inches on the seams and edges with 4-6 inches apart in the middle. The right way, best way and easiest is to staple it. At this point you have the choice to make as to whether you wish to use glue to adfix the luan to the plywood subflooring. Is there a problem with screws in the cement back board and under tile heating…? These nails have been proven to have twice the holding ability of smooth-shank staples … We had very dirty plywood subflooring. That being said, for what your doing I'd screw the whole thing down with some 7/8 sq drive deck screws. Make sure you use underlayment grade plywood. Published as Staples Out Simply in August/September 2015 Issue When Hans Dreisbach of Greenville, S.C.-based Get Floored LLC saw an old Trick of the Trade for removing staples from subfloors on the WFB Facebook page, he sent us his own simple solution: a pair of fencing pliers. Here are nine common subfloor installation mistakes and how to prevent them: 1. TILE GUY - retired- TROY, MI - Method & Product suitability consulting. I thought I could borrow my bil's stapler again for this for 1/4" crown point staples. They are also divergent, so they hold well. At that point, I was starting to get the, “Am I in over my head?” feeling. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! I do not endorse any of the products. The underlayment provides many benefits, including moisture protection, sound and thermal insulation and a cushion to make the floor more comfortable to walk on. Quarter-inch lauan plywood is the top material for underlayment among home renovators and contractors. I have been using staples for at least thirty years. How to Install Luan Wood on Curved Surfaces, Luan Plywood for Subfloor Review (Pros and Cons). Grinding Down High Spots . I'm also told that staples may loosen and show through after time. Stapling Luan Plywood to the Subfloor Stapling Luan Plywood to the Subfloor . Could I just nail underlayment to subfloor, 'only' nailing on joists or do I have to nail or staple all over? Bashing my head against the walls in some of the internet's finest chat rooms. The crawlspace is partially heated. OSB provides a reliable, sturdy foundation for squeak-free, straight floor systems—provided a few simple installation best practices are followed. 2) Thickness: Usually manufactured in 4-by-8-foot sheets, plywood panels and OSB are acceptable subfloors for hardwood flooring as long as they are the proper thickness. Helping You to Do It Yourself! VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Plywood underlayment is a thin plywood material that is most commonly used under resilient flooring materials, such as vinyl and linoleum sheets and tiles. You are installing "underlayment" on top of your subfloor. Using a crown compression stapler, staple 2 inches on the seams and edges with 4-6 inches apart in the middle. • Glue-down subfloor: 5/8 -inch plywood panels are glued in a staggered joint pattern directly to the slab. Assuming a remodel, this is going to involve bringing the plywood to the location by hand, as opposed to assistance by a crane. Do not use any adhesive beneath SurePly® plywood underlayment. File this thread under "Your Mileage May Vary". Spotnails AF Mallet Driven Stapler, for fixing plywood or hardboard to the timber subfloors. You should staple every 18mm around the edges and every 20mm inches at the centre of the plywood boarding. While staples are the quickest and easiest fastening option, it is best to use ring-shank and spiral-shank nails for installing plywood subfloors, as they feature grooves that resist withdrawal and increase friction. You might recall that my sister and I recently ripped up the carpet on our first floor. Start in one corner of the room and lay a full sheet of luan perpendicular to the direction of the subfloor panels. Floorcraft. These nails have been proven to have twice the holding ability of smooth-shank staples and nails.
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