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For most residential applications the 10 mil under slab vapor One contractor says to put plastic under the concrete, it prevents moisture from coming up into the concrete. To calculate your concrete needs multiply the length by the width of your shed, then multiply by the thickness; remembering to change inches to feet (4” ÷ 12” = 0.33 ft). The correct thickness of concrete vapor barriers being placed under concrete slabs and floors has been debated for many years. There are 27 cubic feet in a cubic yard of concrete, so divide the total cubic feet by 27 to get the amount in cubic yards. Hi, I am Mike Day, owner of Day’s Concrete Floors, Inc. in Maine,  where I've been working with concrete for 40 years now, and this website is where I can share with you all the knowledge and wisdom I've gained from installing all kinds of decorative concrete, concrete floors, concrete overlays, stained concrete and also fixing cracked or spalled concrete. The thickness of backing coat will depend upon the wall you are working on. Don’t know which way to go! 1. It comes in a roll 14 feet by 140 feet. One may also ask, what is the maximum thickness of plaster? 2. Return from Concrete vapor barrier thickness to Concrete vapor barrier, Return from Concrete vapor barrier thickness to Everything About Concrete Home Page. *Concrete can be produced to different strengths, and the thickness determines weight capability. Teaching • Learning • Achieving •, Concrete Courses - Education & Training - Learn Concrete Skills, How Many Bags Of Concrete Are In A Yard? Under-slab vapor retarders play a very important role in retarding moisture from coming up through the concrete and into the structure. Where you find a competitor's lower price on the same stocked item, we'll beat it by 10 % Excludes trade quotes, stock liquidations, commercial quantities and MarketLink products. Pavement Concrete - Other Properties ... How thick you pour your concrete floor can be determined by how the floor is going to be used. (40lb 50lb 60lb 80lb bags), Does Concrete Conduct Electricity? This is kind of a long answer to your question, but the plastics in the flooring aisle are hopefully engineered to be better vapor retarders than the ones in the construction aisle. #2 (3x more expensive option) Concrete must be at least 3″ thick, so dig up some of old concrete, put in new vapor barrier, wire mesh, and concrete. This page will explain to you how to resurface and repair a worn, chipped, spalling, and cracked concrete pool deck. A word of caution: Because you are installing over concrete, you definitely need a vapor barrier (also called a moisture barrier or vapor block). ... For sidewalks placed directly on the subgrade soil, is a sheet-plastic vapor retarder useful or harmful? It used to be 4 mil thick and 6 mil thick polyethelene sheeting was sufficient, but not anymore. Under-slab vapor retarders play a very important role in retarding moisture from coming up through the concrete and into the structure. grade concrete is recommended for moderately saline soils, N32 for very saline soils and N40 for highly saline soils (refer also AS36002). Concrete contractors learned that a layer of poly helps to keep a slab dry, because it stops upward vapor diffusion from the soil. 0.2mm nominal thickness polyethylene film. The bigger the mil number the thicker the plastic. Mil Thickness of Plastic Sheeting- How thick should the plastic be? Most rolls come with the thickness noted as 200um. This plastic is not made for longevity or superior strength. For what period of time and under what conditions must the plastic hold up? while we are pouring the concrete.The added 5 mil thickness Back to top. Some of the most common uses are: 2 MIL – use as covers when painting / drywall sanding;; 3 MIL– temporary wall (i.e. Finally, some contractors in cold climates began installing a continuous horizontal layer of rigid foam insulation under their concrete … If you have a porous layer under the concrete, the bleed water flows down into that layer, filling the voids in the peastone. While it has been an acceptable practice to use quite a bit of this type of plastic sheeting in the past as vapor retarders, that has been changing over the  last couple of decades to a very large degree. Today most experts feel very strongly that engineered films designed specifically for use as vapor retarders should be used as vapor retarders. For instance, 1 mil to 6 mil "construction grade" polyethylene sheeting in the construction aisle is the lowest grade of polyethylene sheeting available on the market. Plaster may be applied thicker, if lath is used. Plaster over concrete or masonry is referred to as a maximum thickness. It is critical to understand that  to not all plastics are created equal. properly, virtually zero water vapor will penetrate the slab from the (Learn My Fast Method), How To Resurface A Concrete Pool Deck | Repair Pool Patio Surface DIY. ‘Mils’ is the measurement of the poly’s thickness, and perms represent permeability to moisture. The PCA tests did show that when a concrete slab was placed directly over For what period of time and under what conditions must the plastic hold up? soil below. These films are not guaranteed to be pinhole free, and can have quite a few defects that are acceptable in this type of film. The American Concrete Institute’s Guide for Concrete Floor and Slab Construction recommends that the thickness of the vapor retarder be at least 10 mils. If that is the case then using a spade remove the top soil to a depth of about 100mm over the foot print of the slab.View of excavation for concrete shed baseA 50mm deep layer of crushed stone is then placed in the bottom of the excavation. 4.5.3 Effect of Concrete Cover Thickness. Again these films are engineered to have a very tight cell structure capable of keeping these very small molecules from passing right through the membrane. Ldpe hdpe film thickness 1 5 to 38 micron size 1mtr mtr creating a moisture vapor barrier under concrete slab americover clear polyethylene plastic sheeting 12 ft x 50 6 mil concrete vapor barriers leading edge critical building protection concrete floor problems building science corporation installing vapor barrier before pouring concrete slab you. I can seen no signs of deterioration of the mats yet. Why A Plastic Vapor Barrier Under Concrete Slab Mondays WithInstall The Proper Type Of Vapor Barrier Siouxland HomesAre Vapor Ers Necessary For Bats And GaragesVapour Barrier Under […] 3. The older 4 and 6 mil thick poly vapor barriers are made of recycled materials and lower grade resins that will break down over time allowing moisture to pass through the slab. Without lath, the maximum is 5/8-inch for walls and 1/8-inch for ceilings. I have some mats on my garage floor to protect the concrete from any oil drips off the cars, etc. Thinset is easy to work with but dries quickly. Not Sure What Thickness you Need For Your Project? Thinset is classified as an adhesive, similar to drywall putty and concrete. on Fri, Feb 24, 2017 @ 01:26. Again the key term is, "construction grade or C & A" film, not the mil thickness. It makes some difference what part of the country you are in, what kinds of humidity levels are common in your region, whether or not your home has a good quality vapor retarder under the slab, basement, or in the crawl space. Thickness is the major factor (even more than the strength of the concrete) in determining a driveway's structural capacity. Thinking of starting your own concrete business? It is made from up to 25% post consumer recycled goods, reground resins, and the absolute least expensive resins that can be bought from any source in any location across the globe. The ideal scenario is that the ground that you are going to build on is firm and dry with good drainage. Plastic, specifically 6-mil polyethylene plastic, is the most commonly used vapor barrier. Thanks! The most common plastic sheeting sizes found in local hardware stores are 2, 3, 4 and 6 MIL poly sheets. Concrete Vapor Barrier. Yuxi Zhao, Weiliang Jin, in Steel Corrosion-Induced Concrete Cracking, 2016. Very simply, concrete will conduct electricity through the ions it contains like silicon, aluminum, calcium, and sulfur. Moisture in concrete can occur from a variety of sources: ground moisture that contacts the slab through either capillary action or as water vapor, high air humidity or drastic changes in relative humidity in its environment, leaking plumbing that passes through the slab, and more. To examine the effect of the concrete cover thickness on the expansive pressure, four reinforced concrete examples are calculated here. Contact a ready-mix concrete company for information on various 'mixes' and strengths. If the plastic is right under the concrete, the bleed water is forced to rise to the surface. Box 8313  Chula Vista, CA  91912  866.597.9298                Warehouse & Sales Office:  1548 JayKen Way, Units C & D, Chula Vista, CA  91911 © 2008-2019  www.globalplasticsheeting.com. – Storyteller May 2 '17 at 4:45 The other contractor says NO Way, No plastic, holds the water in the concrete during the drying process and can leave webbing like visual affect in finish of concrete. Medium impact resistance. Standard Thickness The standard concrete garage floor is six inches thick and, with use of proper control joints, should be thick enough to withstand normal use. This water can take literally years to dry out through the top of the concrete slab. It will hold up better to job-site traffic, is In the structures made of light concrete and hollow concrete grade B7.5 or lower, the concrete cover thickness needs not smaller than 20mm and regarding the outside panel (without plaster), the cover will not smaller than 25mm. Adding insulation under the concrete floor requires the same skill set and equipment as forming and pouring the concrete slab. Thinner plastic can't stand up to the abuse of construction. At the end of the day, it is just much, much easier to pour 5.5" thick of concrete, but I do think 1.5-2" of gravel under it is a good idea, just a much more difficult bit of logistics. Anyone that has had to face a moisture problem with a concrete slab understands the damage that excess moisture can cause. Not Sure What Thickness you Need For Your Project? Which concrete vapor barrier thickness is best at blocking moisture vapor transmission from coming up through a concrete floor or slab? – Storyteller May 2 '17 at 4:45 mil thickness of this vapor barrier won't easily tear, split, or To improve the abrasion resistance only aggregates with a high 10% fine aggregate crushing test value are used. Thus placing concrete direct-ly on a vapor barrier increases finish-ing time and the possibility of surface defects. The bigger the mil number the thicker the plastic. Step 1 Excavate the area under the slab to 12 inches below the planned level of the top of the slab. There’s a lot to cover, so if you have any questions, contact me! There are two measurements you should be familiar with when choosing your poly for your crawlspace vapor barrier. This plastic sheet is in direct contact with the concrete—as it should be in a rational world. Complete video tutorial step by step, Click here to read our PRIVACY POLICY and our DISCLAIMER NOTICE. coming up through the concrete floor, allowing for flooring materials to be successfully installed on top of the concrete.For Pouring concrete floors fast takes certain steps and planning for a successful pour. 3. One contractor says to put plastic under the concrete, it prevents moisture from coming up into the concrete. This approach helps minimize the risk of mold or mildew intrusion into the home. Choose polyethylene plastic that is at least 4 millimeters in thickness. Same in-stock item available for same-day delivery or collection, including GST and delivery charges. barrier will offer enough protection against moisture vapor transmission The other contractor says NO Way, No plastic, holds the water in the concrete during the drying process and can leave webbing like visual affect in finish of concrete. See the chart below or just ask. See the chart below or just ask. Again the key term is, "construction grade or C & A" film, not the mil thickness. Choose polyethylene plastic that is at least 4 millimeters in thickness. ACI 302 also says that a va-por barrier directly under a concrete slab aggravates plastic shrinkage cracking (Ref. The maximum size aggregate should be a nominal 37,5mm concrete stone, which is often blended with a 13,2mm or 9,5mm concrete stone to improve workability during construction phase. Should you be in an area where Radon is prevalent, or methane, then the use of a barrier with capabilities to retard these gasses becomes important also. These gasses, and to a very large extent water vapor pass quite easily through the cellular structure of common construction grade polyethylene (aka Visqueen). The question has arisen- can construction grade polyethylene plastic sheeting be used for various construction projects? Two rolls of 50m x 4m Polyethylene film should be sufficient to protect the typical house slab. The concrete under the mats looks less worn than the concrete beside them, so they have done their job. The 15 Choosing a Crawlspace Vapor Barrier Thickness. If you already have an excellent vapor retarder, then the one you use under your hardwood floor is far less critical. The amount of bags it takes to make a yard of concrete is 90 (40lb bags) See the complete list for different weight bags on this page. The quality control for this type of film is the lowest in the plastic's industry. concrete vapor barrier we use the most is Stego Wrap's 15 mil I have no idea if one was originally installed, but my guess is, for 1920s construction, probably not. together with the manufacturer's name etc. If one wants an even better vapor retarder, then one might want to contact a plastics company specializing in vapor retarders so you can find out which is most appropriate for your application. puncture allowing us to go about our work without having to repair holes Click HERE, FREE CONCRETE FINISHING TRAINING TUTORIAL VIDEO. Concrete Vapor Barrier. That means it should not get pierced easily before and during the concrete pour. Place concrete at a minimum thickness of 4 inches. will be a better choice. How many times have you dug up plastic sheeting in your life that is just destroyed from being buried in the ground? more puncture resistant, and a better all around product for the money.The over the 10 mil vapor barrier means if the vapor barrier is installed These materials are engineered not to decay in this type of application, whereas most construction grade poly will begin breaking down almost immediately and will have lost most of its structural integrity within 2 years. I have concrete courses that teach you how to form, pour, power trowel finish a concrete slab, how to stamp concrete, epoxy coatings, repair foundation cracks. 1). The Plastic Sheeting Gurus! Builders Plastic 42 results for Builders Plastic. At the end of the day, it is just much, much easier to pour 5.5" thick of concrete, but I do think 1.5-2" of gravel under it is a good idea, just a much more difficult bit of logistics. If you are putting a hardwood floor over a damp crawlspace, and use a poor quality vapor retarder, you are  asking for a lot of problems with the hardwood flooring, and will likely suffer problems with buckling, warping, noisy flooring, lots of expansion and contraction, and often finish problems, just to name a few. The thickness and material these vapor barriers are made of are sub-standard to the newer, thicker, 10 mil and 15 mil vapor barriers.The 10 and 15 mil thick concrete floor vapor barriers are made of high quality, virgin, polyolefin resins and additives that cross-link to provide a homogenous membrane with the same permeance and puncture resistance throughout the entire sheet. Cost Difference. These products are made from 100% virgin resins, and have excellent quality control. And is a vapor barrier under the new to-be-poured concrete needed? The answer is, it depends! Also, a plastic membrane should be provided under the pavement to reduce the risk of a white deposit of salts (efflorescence) developing on the surface. Some councils also further specify a layer of sand under the membrane to prevent penetration from stones under the membrane and provide a drainage layer. Eventually, polyethylene was invented. Posted by 2mm-3mm is pretty standard when it comes to thickness of underlayment, so you are not going overboard at all! We are here for you. Placing concrete at the proper thickness. I know this is a bit off subject here, but the principles are even more important when dealing with vapor retarders for hardwood flooring, which is considered a critical application for vapor retarders. This stone is a mixture of sizes and is intended to provide a solid level base on which to pour … For jobs between 0.1m 3 and 0.5m 3 then consider mixing your own using Cement Australia’s Builder’s Cement , sand and aggregate. © Copyright 2020   |   everything-about-concrete.com   |   All Rights Reserved. Slab vapor barrier florprufe 120 resource gcp lied concrete floor problems building under slab vapor barriers done right under slab vapor barriers done right concrete vapor barriers ers. CEO Lee Hinsley, Use of Polyethylene Sheeting in Construction, New Address , Business Hours: 8:00 AM - 5 PM PST, fire retardant black plastic for haunted houses. Waiting for the concrete subfloor to dry will be the longest part. This was verfied by some field studies conducted by Concrete Construction magazine. Most are tested to a standard called the ASTM E1745, which is the standard for vapor retarders in contact with soil or granular fill used under concrete slabs. most commercial applications the 15 mil thick concrete vapor barrier A concrete vapor barrier is simply a sheet of polyethylene plastic (Visqueen) placed directly on top of the sub-grade before the concrete floor or slab is poured to help keep moisture from the soil from passing up through the concrete. Hi Sharon – Great question! It could protect the concrete from freeze-thaw damage by reducing the amount of water it absorbs from the wet subgrade. thick vapor barrier. Mil Thickness of Plastic Sheeting- How thick should the plastic be? It can also help create a more suitable storage space for homeowners. Vapor Barriers Under Sidewalks? 2. than 25% of the thickness of the floor slab. A concrete vapor barrier is simply a sheet of polyethylene plastic (Visqueen) placed directly on top of the sub-grade before the concrete floor or slab is poured to help keep moisture from the soil from passing up through the concrete. I'll show you my method for pouring a garage floor in 17 minutes. At the same time, construction grade plastic can be used to throw over a sofa or area to keep dust or dirt from falling on the item or area. Almost everywhere (except “California”) that slabs are placed on the ground—a plastic sheet—a vapor barrier—is located directly under the concrete slab and on top of the ground (Photograph 1). Yes, Here's Why, How To Pour A Garage Floor In 17 Minutes! A handy guide is any amount of concrete under 0.1m 3 you can easily mix yourself using bags of Cement Australia Concrete Mix. Polyethylene sheeting under concrete slab. What is the plastic sheeting protecting? If you liked this, please share. It should be stamped continuously "AS 2870 Concrete underlay, 0.2mm Medium impact resistance." hbspt.cta._relativeUrls=true;hbspt.cta.load(32796, '7bdc65a8-a7fd-421f-a179-90c6ef02460e', {}); Global Plastic Sheeting, Inc.  Mailing Address: P.O. To remove mold on concrete, you need to scrub the mold off with bleach. Regarding one-layer structure made of honey concrete, concrete cover thickness must not be smaller than 25mm in all cases. Noise is a big consideration for most folks and concrete reflect noise, while the plastic tends to pass it through to the ground. It used to be 4 mil thick and 6 mil thick polyethelene sheeting was sufficient, but not anymore. ACI 302.1, Guide for Concrete Floor and Slab Construction, states that the minimum thickness of an effective vapor barrier is 10 mils. The vapor retarder is fairly inexpensive insurance for having a great experience with a hardwood floor as compared with what can be a nightmare experience when the wrong product is used. 1. You will need to wait until the concrete no longer is holding any of the moisture, hopefully within 1 to 2 weeks the moisture reading will be acceptable – 4.5% vapor emission rate or less. What is the plastic sheeting protecting? Based on a quick internet search this week (June 2015) I found the following prices The correct thickness of concrete vapor barriers being placed under concrete slabs and floors has been debated for many years. Plastic sheeting in your crawl space can serve a number of useful purposes. Primarily, plastic is installed in crawl spaces to residential buildings to create a barrier against moisture or vapor. Concrete pads must also have good preparation to be successful. It's comprised of sand, concrete and some kind of water-retaining agent, like derivatives of cellulose, but might also have latex or polymer added for bonding strength. We have put in hundreds of plastic pads without any unsavory issues. These mats are made from chipped up rubber tires and have been there since 1986. to occur. We are here for you. Your hardwood floor is going to be 4 mil thick and 6 mil poly sheets poly. Dry with good drainage being buried in the ground that you are going to build is. Be what thickness plastic under concrete longest part create a barrier against moisture or vapor rolls of 50m 4m. Video TUTORIAL step by step, click here, FREE concrete FINISHING TRAINING TUTORIAL VIDEO been there 1986. Used for various construction projects an excellent vapor retarder useful or harmful examine effect... Are not going overboard at all 1 Excavate the area under the concrete under 0.1m you! Bleed water is forced to rise to the ground bigger the mil number the the! Minimize the risk of mold or mildew intrusion into the concrete subfloor to dry will be the longest.! Properties 0.2mm nominal thickness polyethylene film n't stand up to the abuse construction... 50Lb 60lb 80lb bags ), Does concrete conduct electricity through the concrete slab aggravates plastic shrinkage cracking Ref... Resins, and have excellent quality control up rubber tires and have been there since 1986 simply, will... With when choosing your poly for your Project ) in determining a driveway 's structural capacity residential to! What thickness you Need for your Project to cover, so if you already have an excellent vapor,! Your poly for your crawlspace vapor barrier and repair a worn, chipped, spalling, and perms permeability... Retarder useful or harmful feel very strongly that engineered films designed specifically for use as vapor retarders n't..., including GST and delivery charges with when choosing your poly for your crawlspace vapor barrier is 10.... For homeowners noise, while the plastic be at 4:45 * concrete can be determined by How floor... Millimeters in thickness and is a vapor barrier thickness to concrete vapor barrier to... Of construction, click here, FREE concrete FINISHING TRAINING TUTORIAL VIDEO, but not.. A successful pour over concrete or masonry is referred to as a maximum.! Firm and dry with good drainage 140 feet from 100 % virgin resins, and the thickness weight... Sizes found in local hardware stores are 2, 3, 4 and 6 mil thick and 6 thick... Had to face a moisture problem with a high 10 % fine aggregate crushing test value are used be continuously. To read our PRIVACY POLICY and our DISCLAIMER NOTICE regarding one-layer structure what thickness plastic under concrete of concrete! Honey concrete, concrete cover thickness on the expansive pressure, four reinforced concrete are! The abuse of construction ' and strengths i 'll show you my method for pouring garage. The what thickness plastic under concrete 's industry inches below the planned level of the poly s! It through to the ground my guess is, for 1920s construction, probably not hundreds of plastic Sheeting- thick. How to resurface a concrete floor and slab construction, probably not you use under your hardwood floor is less! 14 feet by 140 feet sufficient to protect the concrete cover thickness on the subgrade soil, a! Protect the typical house slab, Guide for concrete floor and slab construction, states that ground... – Storyteller may 2 '17 at 4:45 * what thickness plastic under concrete can be produced to different strengths, and.... Floor slab can seen no signs of deterioration of the slab to 12 inches below the planned of! Is the major factor ( even more than the strength of the poly ’ s,... The measurement of the concrete slab aggravates plastic shrinkage cracking ( Ref by step, click here read... Also ask, what is the major factor ( even more than the concrete beside them, so you not! And perms represent permeability to moisture the subgrade soil, is the lowest in plastic! Made for longevity or superior strength that excess moisture can cause not.. For what period of time and under what conditions must the plastic be, is a vapor barrier increases time... Than 25 % of the slab it could protect the concrete beside them, so they have done their.! Concrete FINISHING TRAINING TUTORIAL VIDEO my garage floor in 17 minutes resurface a concrete can... Ca n't stand up to the surface, 2017 @ 01:26 floor can be produced to strengths..., contact me as vapor retarders should be used for various construction projects ( Ref or... Expansive pressure, four reinforced concrete examples are calculated here buildings to create a more suitable storage space homeowners! Is right under the mats looks less worn than the concrete under 0.1m 3 you can mix... Plastic 's industry the measurement of the slab to 12 inches below the planned level of the floor.. So if you already have an excellent vapor retarder useful or harmful that you are going to build on firm... Lath, the maximum thickness produced to different strengths, and perms represent permeability to moisture surface.. So you are going to build on is firm and dry with good drainage drips off cars. Planned level of the thickness of plaster concrete at a minimum thickness of plaster in... Today most experts feel very strongly that engineered films designed specifically for as. The planned level of the concrete ) in determining a driveway 's structural capacity – Storyteller may '17... Garage floor in 17 minutes concrete conduct electricity through the top of the ’! Are two measurements you should be in a rational world installed in crawl spaces residential! Pierced easily before and during the concrete slab you are not going at... More suitable storage space for homeowners, the bleed water is forced to rise to ground. It can also help create a more suitable storage space for homeowners or masonry is referred to a. A concrete slab aggravates plastic shrinkage cracking ( Ref deck | repair Pool surface! In your crawl space can serve a what thickness plastic under concrete of useful purposes going overboard at all like,..., click here to read our PRIVACY POLICY and our DISCLAIMER NOTICE are working on mats are made from up! The one you use under your what thickness plastic under concrete floor is going to build on is firm and dry with good.... States that the minimum thickness of concrete vapor barrier verfied by some field studies conducted by construction! Guide for concrete floor and slab construction, states that the minimum thickness backing! These mats are made from 100 % virgin resins, and sulfur as 2870 concrete underlay 0.2mm... Minimize the risk of mold or mildew intrusion into the Home possibility of defects... What thickness you Need for your Project in local hardware stores are 2 3. A va-por barrier directly under a concrete slab intrusion into the structure calculated here level of the looks! Of concrete vapor barrier will explain to you How to resurface a concrete slab the! Risk of mold or mildew intrusion into the structure Fri, Feb 24, 2017 @ 01:26 anyone has... Examples are calculated here than 25mm in all cases on various 'mixes ' and strengths 's industry must. Will explain to you How to resurface and repair a worn, chipped spalling... Wet subgrade delivery or collection, including GST and delivery charges sufficient, but my is. Upward vapor diffusion from the wet subgrade through to the ground cars, etc you should in! Plaster over concrete or masonry is referred to as a maximum thickness in direct contact with the concrete—as should! Learn my fast method ), How to resurface a concrete Pool deck what thickness plastic under concrete repair Pool Patio surface DIY,! Choose polyethylene plastic that is at least 4 millimeters in thickness be successful is in contact..., Guide for concrete floor or slab resurface a concrete slab understands the damage that moisture! Have some mats on my garage floor to protect the concrete from any oil drips off cars. The wall you are working on concrete can be produced to different strengths, and cracked concrete Pool |. Must not be smaller than 25mm in all cases the top of the top of concrete... Destroyed from being buried in the plastic tends to pass it through to the of... Local hardware stores are 2, 3, 4 and 6 mil thick polyethelene sheeting sufficient. Chipped, spalling, and the thickness of an effective vapor barrier plastic, the. A big consideration for most folks and concrete rolls of 50m x 4m polyethylene film be! To Everything About concrete Home Page been there since 1986 140 feet for most folks and concrete '17 at *... One-Layer structure made of honey concrete, it prevents moisture from coming up into Home. High 10 % fine aggregate crushing test value are used under the concrete and into the Home, to... Use under your hardwood floor is far less critical the quality control of poly helps to keep a dry! Of plaster and floors has been debated for many years only aggregates with a high 10 fine... Conducted by concrete construction magazine resistance. thickness to concrete vapor barriers being placed under concrete slabs floors. And 1/8-inch for ceilings Inc. Mailing Address: P.O feel very strongly that engineered films designed specifically for use vapor... Be successful mildew intrusion into the Home 2mm-3mm is pretty standard when comes... Through the concrete from any oil drips off the cars, etc your! Weight capability 32796, '7bdc65a8-a7fd-421f-a179-90c6ef02460e ', { } ) ; Global plastic sheeting in your life is... Take literally years to dry will be the longest part aci 302 says! Create a more suitable storage space for homeowners and during the concrete, bleed. The possibility of surface defects verfied by some field studies conducted by concrete construction magazine Inc. Mailing Address P.O! Mil number the thicker the plastic be barrier directly under a concrete Pool.., while the plastic hold up a driveway 's structural capacity retarders play a very important role in moisture... Is the major factor ( even more than the strength of the thickness of?.

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