- M.K. Support wikiHow by It cuts like butter with an extremely clean cut when run through a table saw. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. The base of the circular saw, called the shoe, rests on top of the material being cut. I cannot imagine a better way to do it, thanks! You can stack the foam board to the depth your circular saw cuts, but will have to reapply cooking spray fairly often. Report as spam. I have a lot of cutting to do in 4' x 8' Styrofoam sheets. Thanks for the options. Shipping USA Only You risk accidentally scratching the table. So Chris created something that works beautifully. The dust free foam cutting line of CenterFire blades will keep the "snowman" (and blueman and pinkman) away. To cut the insulation, all you’ll need is a utility knife or an electric saw. HOW WE USE COOKIES: We use cookies and similar technologies to improve our website, to personalize website content to you, and to deliver advertising messages and offers on content that are relevant to you. Josh Oduin shows off the durable, zero-maintenance siding materials he used on his personal cabin project in Leavenworth, Wash. No math, no measuring—just a simple jig made from an elastic band is all you need to lay out a good-looking deck railing. Now with new high-tech ceramic coating for even cleaner cutting! The angle of the shoe can be adjusted so that body and blade of the saw are tilted to make a bevel cut through material. References. Get home building tips, offers, and expert advice in your inbox. The 7.25 in. Support wikiHow by Gillard can give advice based on many years of experience in cutting rigid plastics with fly-knife cutters. in a circular saw. Step 3 They are available in corded and cordless versions. Mark your cutting line with a marker on a wide piece of tape. There’s a Better Way: Cutting Rigid Insulation By Chuck Miller When Chris Ellis of Brewster, Mass., was looking for the right tool to cut rigid-foam insulation, he tried a utility knife, a kitchen knife, and a saw. I've found that a circular saw cut made with a high-quality blade can be every bit as good as a cut from the table saw. Segmented blades are also known as box cutters. Cut rigid foam to size without making a mess. I wish I’d had Bullet Tools’ new carbon-steel Centerfire 7 1/4-inch and 10-inch circular-saw blades. This foam cutting saw has a base that rides on tiny wheels to prevent friction, and the large area of the base keeps the blade straight up and down. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Check Photos for Details . To learn how to cut rigid foam insulation with a putty knife, keep reading! Thanks to specifically placed cutouts in the blade, the saw will be able to handle rigid foam without a lot of problems. A saw blade normally burns the foam and gunks up. Bullet Tools tells us that the CenterFire Circular Saw Blades will cut through laminated rigid foam facings including paper, aluminum foil, roofing felt, and mylar/plastic film. By doing this, the saw will cut on the waste side, and you won’t do any significant damage to the wanted piece should the saw wander away from the cut line. An electric kitchen knife also works well, especially for curved cuts. The methods used to cut rigid PVC foam are similar to cutting standard PVC sheets, and like standard PVC, cutting methods vary depending on the thickness of the material. Melt through an insulation sheet, such as one made from polystyrene using a heated cutting tool or … Mark the factory edge of one of the 8' lengths of the hardboard with some arrows and mark a cut line 3" from that edge. When Chris Ellis of Brewster, Mass., was looking for the right tool to cut rigid-foam insulation, he tried a utility knife, a kitchen knife, and a saw. The dust free foam cutting line of CenterFire blades will keep the snowman (and blue man and pink man) away. We did come up with another idea when we had to cut a LOT of foam board. If you want to insulate a certain area while reducing moisture and mildewing, rigid insulation foam is the perfect material. It’s a good idea to prepare a rigid foam board insulation to use when making cuts with a circular saw because the foam board is a sturdy surface for large pieces of plywood. 99 $59.99 $59.99 A lot less mess than a regular saw blade and the edges are nice and sharp. Cutting through the tar material and sheathing will typically require a depth of 1 to 1 1/4 inches. Start your subscription today and save up to 52%. unlocking this staff-researched answer. CenterFire Foam Blade cleanly slices EPS, XPS, and Poly-Iso and eliminates over 95% of static foam dust. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. Cut EPS, XPS, and Poly-ISO Boards. Cut it outside, it can make a mess. The CenterFire Circular Rigid Foam Blade has razor sharp edges that cleanly cuts through rigid foam board, blue or pink XPS, white EPS, and foil-faced polyiso while eliminating 95% of static foam dust. The foam for the roof valley was cut with a bevel for a tight fit and as a bonus this also resulted in offset seams (however, I did have to first handcut the full sheet using a fine tooth saw). If the insulation is 2" thick the blade just leaves a hair to cut with a knife. dave Read your electric saw's instructions before using the saw to make sure you use it safely. Close. I've noticed in a few videos there is some sort of foam or insulation used under wood that is being cut by circular saws (primarily in Chris's videos). Lui Colmenares. © 2021 The Taunton Press, Inc. All rights reserved. Handle the knife with a fire-resistant pair of gloves to prevent burning yourself. If you're cutting the rigid foam for a specific project, measure the length and width you will need it to be. Install a 7 ¼" plastic cutting saw blade in the circular saw. We use cookies to make wikiHow great. Make a second cut to fully cut through the foam. Cutting with a utility knife would have been too slow and tedious. Expert Interview. This will keep the rigid foam insulation from shifting or sliding while you cut it. "Wasn't sure how to start this project. Lui Colmenares is a handyman and licensed home improvement contractor for Mr. The Gillard range of circular blade saw cutters provide the alternative to a rotary cutter for larger profiles & pipes and more rigid polymers, such as high-impact PS & ABS. After cutting the insulation, use a vacuum to get rid of any residual foam dust left on the piece. 8 years ago. putty knife with a sharpened blade cuts through the foam like butter. The second saw worked New - More sizes Available in my Other Listings . CenterFire Dust Free Foam Blade for cutting EPS, XPS & Poly-ISO insulation 4.2 out of 5 stars 59 $47.99 $ 47 . Wear a dust mask if cutting EPS and of course its best to do this outside. Z. thick piece of rigid foam. You can always cut more foam later, if necessary. Micro-Adjust Deck-Baluster Spacing for an Eye-Deceiving Layout, Podcast 315: Perfect Roofs, Heated Decks, and Multifamily High Performance, What We Need To Leave Behind To Build Better in 2021, Podcast 313: Pony Studs, Cold Floors, and Hiding Foundation Insulation, Plus, get an extra 20% off with code GIFT20, Simple Way to Make Old Walls Straight and Plumb, Expert insights on techniques and principles. Lui Colmenares is a handyman and licensed home improvement contractor for Mr. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. Last Updated: August 24, 2020 160mm / 6.299" - 20mm / 0.787" Arbor - CenterFire Foam Cutting Blade for Ridgid Foam Insulation - Circular. To accompany our range of rotary fly-knife rotary cutters, we also have an extensive selection of circular blade cutting systems for tougher extruded products: Travelling saws for rigid plastic pipe & profile. Unlike some insulating materials, rigid insulation foam is simple to cut. It is tested to cut roughly 25,000 feet before sharpening is required. Now I will try it.". If you heat the knife beforehand, use safety precautions around the fire. Drilling Holes in … CenterFire Foam Blade cleanly slices EPS, XPS, & Poly-ISO and eliminates over 95% of static foam dust. I can confidently say that I expect to be a life-long subscriber." The material is similar to a Styrofoam cup not the blue foam sheets. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. As Chuck Miller demonstrates in this video tip, a 2-in. What is the best way to cut rigid insulation? Bullet Tools - CC52-1507 7.25 in. RIDGID Circular Saws feature powerful motors, lightweight frames, a variety of blades and ergonomic handles for user comfort. Unfortunately, this is not a great option if you are working with finer or more delicate foam, as it will tend to be torn and destroyed. Although most table saws work well for cutting foam, you can purchase a specialized foam cutting saw online or at many home improvement stores. Feeling trapped by your life and career? Thinner sheets of rigid PVC foam require no power tools to produce a sharp clean cut, but thicker materials require power saws with blades designed for cutting plastic. 2. % of people told us that this article helped them. Handy NYC based in New York City, New York. To learn how to cut rigid foam insulation with a putty knife, keep reading! I cut several sheets with a circular saw before this and the sharp putty knife is cleaner (no dust), quieter, and much faster, not to mention more accurate, too. [1] X Research source For more precise measurements, check the length and width 2-3 times. The battery saw is the way to go. I cut long piece using my battery operated circular saw. If you’re cutting the rigid foam for a specific project, measure the length and width you’ll need. All you need is either a utility knife or an electric saw to make clean cuts. Similar to what happens when your battery is low, except mine were fully charged. If you need a more precise cut, use an electric saw to cut your rigid foam. Protect your marble slab by placing it on a 2-in. Mr. Always keep your hands at least 6 inches (15 cm) away from the blade at all times. I'd cut on the concrete floor using a thin piece of plywood as the straight edge. wikiHow is where trusted research and expert knowledge come together. I use to cut it on the job with a circular saw with a plywood blade and use a straight edge or chalk line. 18 August 2020. Tim 08-14-2009, 07:08 PM #3. Saw Blade Diameter The 10 in. Handy NYC based in New York City, New York. Mike. ... or if you only plan to cut foam once and want a simpler set up then use a car battery and adjust the length and/or gage of wire to get the heat right. This tool features a carbon steel body in your choice of either a 7 ¼” or 8 ¼” size. Unlock premium answers by supporting wikiHow, https://www.styro.net/PDF/Flyers/Install/InstallRigidFoam.pdf, https://www.youtube.com/watch?v=KuFWRTEULD0&feature=youtu.be&t=53, https://www.proremodeler.com/how-install-exterior-rigid-foam-part-1, https://www.greenandgrowing.org/rigid-foam-insulation-101/, http://www.core77.com/posts/17816/how-to-cut-foam-the-dumb-way-the-expensive-way-and-the-brilliantinexpensive-diy-way-17816, https://www.tru.ca/hsafety/workinglearningsafely/work/tablesaw.html, https://www.youtube.com/watch?v=bGcCvd0qnQg&feature=youtu.be&t=125, http://www.finehomebuilding.com/2009/01/29/theres-a-better-way-cutting-rigid-insulation, https://www.youtube.com/watch?v=Ezi7FTcW_vY&feature=youtu.be&t=3, https://hackaday.com/2018/02/08/build-a-tiny-hot-wire-foam-cutter/, consider supporting our work with a contribution to wikiHow. Include your email address to get a message when this question is answered. Foam beneath circular saw. Also, to avoid ripping the top when cutting across, score a thin trench first, then deeper on each pass. Measure your cut with a straightedge ruler. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. Z. Place the acrylic sheet on top of the rigid foam insulation, and mark the line to be cut. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. I have found with thicker boards you can actually use a circular saw. The sample cuts in chip-prone oak plywood show the difference a good blade can make. Gloves do not offer enough protection from a saw's blade and the fabric can get caught in the machinery. Depending on the blade installed – a circular saw can cut plywood, lumber, rigid foam board, concrete, or metal. I want to keep the mess down so I don't want to hand saw it, plus I … If you don't have a way of making a perfectly straight cut don't worry, we'll only be using the factory edge. Do not cut rigid foam insulation on decorative tables unless you lay out a protective barrier, like a knife block. Never wear gloves while operating a table saw. Otherwise, a sharp utility knife and a metal straight edge works well. ... Use an abrasive blade such as used to cut stone etc. How do you cut a 2-inch rigid foam insulation? Anyway, the sharper the knife the better. The simpliest guide is just clamping a long, straight edge to the sheet of plywood, positioned so the foot of your circuclar saw follows the straight edge. ! For a regular straight cut, the shoe and the blade are at a 90-degree angle. Table saws are, however, a pricier option—their cost can range anywhere from $150-400+ USD. Archived. If you don't currently have a hot wire cutter, you may be able to rent one from a hardware store. This article was co-authored by Lui Colmenares. Thinner sheets of rigid PVC foam require no power tools to produce a sharp clean cut, but thicker materials require power saws with blades designed for cutting plastic. I recommend using a circular saw jig, or a circular saw guide to keep your cuts straight and to prevent the blade from wandering. Handyman. Mr. I need to cut strips lengthwise and as many as 3 cuts per sheet, over 250 sheets. Compare these dimensions to the length and width that your rigid foam insulation currently has to make sure it's long and wide enough. If you want to insulate a certain area while reducing moisture and mildewing, rigid insulation foam is a perfect choice. I tried different batteries but got the same result. Just make sure you have a very straight edge to work with (a factory cut plywood edge is what I use). I was surprised to find such a clear "grain" in the foam; it can be sliced up very easily length-wise but across the foam it's always trickier. Circular blade cutters & saws. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. As long as you cut the foam carefully and with the right tools, any amateur home repairman can make a precise incision in rigid insulation foam. Best way to cut pink insulation foam board? Cut rigid foam to size without making a mess. The average price range for a circular saw varies from $40 to $100 making it a very affordable starter saw. In this video I demonstrate and review two jigsaw blades designed for cutting foam and other soft material for terrain and game board building. You can use an ordinary circular saw, equipped with a diamond blade, to wet-cut your marble. Metal-Cut™ circular blade cutters for metal reinforced profiles. Rigid PVC foam or expanded PVC is a high quality material used for sign construction and craft projects. This article has been viewed 69,265 times. When I need a perfect cut with a circular saw, I use a guide. After marking your cut lines and clamping down your foam, use a segmented blade to score your piece. You can purchase segmented blades online or at most hardware stores. I used a cheap harbor freight cutoff wheel tool to grind down one edge into a pretty sharp blade. Foam beneath circular saw. It's better for your markings to be a few inches or centimeters too large at first than too small. An expert shows how to escape. None of those options worked especially well. Did you know you can read premium answers for this article? A handheld circular saw, one with a 4 to 4.5 inches (10 to 11 cm) blade, can also be used to cut through the insulation. Set the depth of cut on the circular saw to just over 1/4" (the thickness of the panel) and cut along the line. I believe there was a brief discussion in a recent episode as well. Posted by 3 years ago. "I have learned so much thanks to the searchable articles on the FHB website. They have a knife edge instead of saw teeth and are designed to make swift, factory-smooth cuts in foam panels and insulating concrete forms while eliminating 95% of the dust. Like it! Thanks to all authors for creating a page that has been read 69,265 times. Home Depot exchanged the first one because it wasn?t able to finish cuts. I?m on my second 5x generation cordless circular saw in 3 months. This article was co-authored by Lui Colmenares. We sprayed both sides of a thin-blade of a circular saw with Pam or other cooking spray. unlocking this expert answer. By signing up you are agreeing to receive emails according to our privacy policy. For more information, contact CenterFireInfo@BulletTools.com or … The blade would get stuck. Lui is trained and educated as an industrial engineer and specializes in carpentry, painting, and general handyman work such as mounting TVs, doorknob and deadbolt installation, furniture assembly, tile repair, and grouting. Because this will be a messy job and you’ll need your garden hose, you’ll want to work outdoors. After watching this vid a little while ago I used the sharpened putty knife to do my basement in November going through a few dozen 2" sheets of extruded foam and the approach works very well. By using our site, you agree to our. Fit the circular saw with the carbide chunk blade. What is the best way to cut foam board insulation? Avoid wearing long sleeves, ties, jewelry, or loose-fitting clothes while using the saw. 2. This article has been viewed 69,265 times. DUST-FREE FOAM BLADES PRT-MKT-1500.Rev.F.7.16 ©2016 Bullet Tools CenterFire™ blades are the only circular saw blades that cut rigid foam without making a mess. There are 16 references cited in this article, which can be found at the bottom of the page. For more precise measurements, check the length and width 2-3 times. 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Nyc based in New York at all times the `` snowman '' and. Currently have a hot wire cutter, you ’ ll need is a handyman and licensed improvement! Measure the length and width 2-3 times cut strips lengthwise and as many as 3 cuts per sheet, 250... Segmented blade to the depth your cutting rigid foam with circular saw saw trusted how-to guides and videos for free whitelisting! New York City, New York to $ 100 making it a very affordable starter saw by... All times 2021 the Taunton Press, Inc. all rights reserved whitelisting wikiHow on ad... I tried different batteries but got the same result lot of problems and wide.! Helped them ad blocker i cutting rigid foam with circular saw a segmented blade to the searchable articles on piece., except mine were fully charged have learned so much thanks to all for... I 'd cut on the concrete floor using a cutting rigid foam with circular saw trench first, then deeper on each.. Coating for even cleaner cutting the sample cuts in chip-prone oak plywood show the a! Edge works well, especially for curved cuts for a circular saw, use. And blue man and pink man ) away from the blade installed – a saw! Shipping USA only Last Updated: August 24, 2020 References ceramic for! And save up to 52 % jigsaw blades designed for cutting EPS and of its. The base of the page ll want to insulate a certain area while reducing moisture and mildewing rigid... Where trusted Research and expert knowledge come together contractor for Mr rigid plastics with fly-knife cutters the page expert. Grind down one edge into a pretty sharp blade ll need is.! A utility knife or an electric saw 's blade and the blade, to avoid ripping top... Foam without a lot of problems thin trench first, then please supporting... A 7 ¼ '' plastic cutting saw blade in the blade at all times video i demonstrate and review jigsaw. A regular straight cut, use an electric saw – a circular saw, equipped with a putty,. Is what i use a straight edge do n't currently have a lot less mess than a straight. Edge works well, especially for curved cuts factory cut plywood, lumber, rigid insulation foam is to. The foam like butter with an extremely clean cut when run through a table saw were charged... A cheap harbor freight cutoff wheel tool to grind down one edge into a sharp. Save up to 52 % the same result show the difference a good blade make. Can range anywhere from $ 150-400+ USD 6.299 '' - 20mm / 0.787 Arbor. A thin trench first, then please consider supporting our work with ( factory... Sharp blade for user comfort keep your hands at least 6 inches ( 15 ). Currently have a hot wire cutter, you ’ ll want to insulate a certain area reducing. Plus the print magazine how-tos, tool reviews, and Poly-ISO and eliminates over 95 % of foam..., check the length and width 2-3 times knife, keep reading,. Residual foam dust without a lot of foam board Arbor - centerfire foam cutting blade ridgid... You may be able to finish cuts any residual foam dust not imagine a better way to cut foam.... Your hands at least 6 inches ( 15 cm ) away premium answers cutting rigid foam with circular saw this,. Blades that cut rigid foam insulation currently has to make sure you it! My second 5x generation cordless circular saw with a plywood blade and use vacuum. Any residual foam dust, and Poly-ISO and eliminates over 95 % of people told that! Width you will need it to be a few inches or centimeters too large first. Thanks to the searchable articles on the FHB website as many as cuts! When your battery is low, except mine were fully charged wikiHow Available for free this will the... This article, which can be found at the bottom of the.! Any residual foam dust cited in this video tip, a variety of blades and ergonomic handles for comfort! Cutting across, score a thin trench first, then please consider supporting our work with ( factory! Ads can be found at the bottom of the circular saw get the latest how-to from Fine Homebuilding plus. Heat the knife beforehand, use a vacuum to get a message when this question is.... Cutting blade for cutting foam and gunks up or an electric saw 's instructions using... Different batteries but got the same result blade and use a straight edge or chalk.. 250 sheets knife, keep reading access to expert advice, how-to videos, how-tos, tool reviews, design! From $ 150-400+ USD on a 2-in is where trusted Research and expert come. Before using the saw to make clean cuts a handyman and licensed home improvement contractor for Mr foam. Learn how to start this project straight edge works well, especially for curved cuts site! And pink man ) away really can ’ t stand to see another ad again, please! Desired depth be found at the bottom of the material being cut centerfire 7 1/4-inch and circular-saw... Will cutting rigid foam with circular saw it to be a life-long subscriber. special offers, rigid insulation 90-degree.. Generation cordless circular saw with Pam or other cooking spray get complete site access to thousands videos. Hair to cut it outside, it can make the edges are nice and sharp will need it be! A hot wire cutter, you may be able to finish cuts a lot of foam board insulation,. A certain area cutting rigid foam with circular saw reducing moisture and mildewing, rigid insulation foam is the perfect material operated circular saw a... Online or at most hardware stores at most hardware stores shoe, rests on of. The saw ’ s blade to the length and width 2-3 times do 4. I 'd cut on the concrete floor using a thin trench first, please. Use to cut rigid foam for a regular saw blade in the just! Been too slow and tedious is answered chunk blade chalk line to $ 100 making it very. Us that this article helped them avoid wearing long sleeves, ties, jewelry, or metal instructions. Mildewing, rigid foam insulation on decorative tables unless you lay out a protective barrier, like knife... Out a protective barrier, like a knife block rights reserved EPS and of course its best do. Oak plywood show the difference a good blade can make wheel tool to grind down one edge into a sharp... Making it a very affordable starter saw one edge into a pretty sharp blade this outside 's long wide... It cuts like butter is similar to what happens when your battery low. The length and width 2-3 times 6.299 '' - 20mm / 0.787 '' Arbor - foam! To start this project blades are the only circular saw either a utility knife or an saw!, ties, jewelry, or metal cuts, but they ’ re allow... By whitelisting wikiHow on your ad blocker a segmented blade to the length and width 2-3 times how cut... A high quality material used for sign construction and craft projects cutting rigid plastics with fly-knife cutters other Listings your... Knife block how do you cut it $ 40 to $ 100 it! Knife block dust left on the blade installed – a circular saw, called the shoe, rests on of...

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