ASTM F2170 Update Validates RH as the Superior Test for Concrete Moisture

ASTM F2170 Update Validates RH as the Superior Test for Concrete Moisture

By Jason Spangler in ASTM Concrete Information & Knowledge Base | 0 Comment

This article was originally published in The Flooring Inspector (third issue 2018). The trend continues: scientific research once again validates in situ relative humidity (RH) testing as the superior method of measuring moisture in concrete floor slabs. Now, in response to the latest science, those using the RH test have the green light to obtain […]

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The Rapid RH® Test Takes Less Time Thereby Saving Costs

By Jason Spangler in Relative Humidity (RH) Testing Concrete Information & Knowledge Base | 0 Comment

This article was originally published in Floor Covering Installer (July/August 2018 issue). If time is money as Ben Franklin once advised a young tradesman, then flooring installers and contractors can save money when they use the in situ relative humidity (RH) test to measure concrete floor moisture. How so, you ask? Simple. The in situ […]

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Updated ASTM F2170 Reflects the Newest Science about RH Testing

By Jason Spangler in ASTM Concrete Information & Knowledge Base | 0 Comment

This article was originally published in Concrete Contractor (June/July 2018 issue). For years now, the in situ relative humidity (RH) test for measuring the moisture condition of concrete has been shown to be the most reliable, accurate test available. As far back as the 1960s, laboratories at the Portland Cement Association conducted controlled tests that […]

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RH Moisture Testing in Concrete Now Much Faster

By Jason Spangler in ASTM Concrete Information & Knowledge Base | 0 Comment

This article was originally published in Hardwood Floors (June/July 2018 issue). As the result of findings from an ASTM-commissioned study, the ASTM F06 Committee has issued a significant new update to the F2170 Standard for in situ relative humidity (RH) testing in concrete floor slabs. The update changes from 72 hours down to 24 hours […]

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Discoveries in Science-Based Concrete Moisture Testing

By Jason Spangler in Relative Humidity (RH) Testing Concrete Information & Knowledge Base | 0 Comment

How They Clarify Your Choice of Test Methods This article was originally published in The Construction Specifier (May 2018 issue). Concrete holds moisture. As long as that remains true (it will always be true), the risk of a flooring failure due to excess moisture is very real. The costs of misreading the concrete’s moisture condition, […]

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Why Measure Moisture in Old Concrete Floor Slabs?

By Jason Spangler in Best Practices & Case Studies Concrete Information & Knowledge Base | 2 Comments

This article was originally published by The Flooring Contractor in the Winter 2017 issue. Here’s a pop quiz for all of you flooring installers. You’ve got a 30, maybe 40-year-old concrete slab that “looks and feels” dry. Is it dry enough to install new flooring and coating materials? Before you answer, consider this . . […]

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Why Measure pH and RH levels in Concrete before Installing Floors?

By Jason Spangler in Concrete Chemistry Concrete Information & Knowledge Base | 7 Comments

Flooring contractors who work with concrete floor slabs may need to take both pH (potential hydrogen) and RH (relative humidity) levels of concrete into serious consideration before attempting to install any flooring materials or risk costly project failures. The Basics of pH in Concrete When water dissolves additives in liquid, the liquid will have either […]

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Ensuring Your Flooring Is Installed on Dry Concrete

By Jason Spangler in Moisture Meters Flooring Problems Drying Concrete Slabs Wood Division Knowledge Base Concrete Information & Knowledge Base | 5 Comments

As the flooring contractor, you’re one of the last people to “touch” the floor. The floor covering you install is just the top layer of a deep stack of materials and other people’s efforts – but if moisture problems occur, who gets the first call? You. Did you pour the concrete too? You’re definitely getting […]

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Should You Install Flooring on Wet Concrete When the GC Says So?

By Jason Spangler in Drying Concrete Slabs Concrete Information & Knowledge Base | 6 Comments

This article is a reprint from the October 2016 issue of Concrete Construction. A general contractor (GC) and flooring installer at a construction site were at a crossroads. After doing their due diligence by performing a relative humidity (RH) test on the concrete, which involved inserting a RH probe to a depth of 40 percent […]

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How to Prepare a Concrete Floor for Coatings

By Jason Spangler in Useful Job Tips Concrete Information & Knowledge Base | 8 Comments

Believe it or not, when it comes to applying coatings to a concrete floor slab, it’s not enough just to cast your eyes on the surface – and if it looks dry – think that it’s ready. To avoid the costly problems that can happen after installing coatings, there are two crucial steps you must […]

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RH Testing and That 72-Hour Wait: How Do You Manage It?

By Jason Spangler in ASTM Concrete Information & Knowledge Base | 0 Comment

Written by Wagner Meters, first published in The Commercial Flooring Report (July 2016 issue) 2018 Update – You no longer have to wait! See here. Anticipation is a good thing if you’re watching a spy-thriller. Waiting 72 hours for concrete moisture sensors to equilibrate – less fun. (But perhaps still more fun than watching paint […]

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5 Ways to Speed up Your Concrete Moisture Testing

By Jason Spangler in Relative Humidity (RH) Testing Concrete Information & Knowledge Base | 2 Comments

First published in Tile Magazine (Jan-Feb 2016 issue) Project timelines always seem to put contractors on tight schedules. You know the concrete requires the time it needs to dry before the flooring can be installed, but everyone else constantly pushes to get it done faster. Nobody wants the cost of having to delay decisions because […]

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ASTM F2170 Change Authorizes Official RH Test Results after Just 24 Hours

By Jason Spangler in Concrete Information & Knowledge Base | 8 Comments

 Remember when relative humidity (RH) test readings under the ASTM F2170 standard required a 72-hour waiting period? Not anymore. The 72-hour wait is history. The standard’s been updated. Beginning this year, RH test readings are now documentable after just 24 hours. Doing away with two extra days of waiting comes about because of an […]

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5 Myths Too Many People Still Believe about Concrete Moisture Testing

By Jason Spangler in Concrete Information & Knowledge Base | 5 Comments

As science continues to teach us more and more about moisture in concrete and how best to test a slab’s moisture condition, it’s a wonder so many people hold on to some common (and erroneous) myths about concrete moisture testing. Here are five of those myths that are costing millions of dollars in flooring failures […]

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The Ugly Truth: How Moisture Can Ruin Your Decorative Concrete

By Jason Spangler in Concrete Information & Knowledge Base | 56 Comments

Excess moisture doesn’t just evaporate; it takes your design with it. You can preserve your design and the concrete with proper moisture testing before stains and sealers are applied. Beauty and strength converge in decorative concrete. Like a good acid stain, they fuse together to create a durable, pleasing floor that literally becomes the foundation […]

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Moving Toward a More Eco-Friendly Cement

By Jason Spangler in Concrete Information & Knowledge Base | 0 Comment

Second only to water, concrete is the earth’s most highly utilized material. It’s estimated that on a global scale, we use more than 25 billion tons of new concrete annually—more than three tons of concrete per person. As China, India and other countries continue to industrialize, global use of concrete will only grow. Why does […]

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Concrete Moisture Test Methods Revolutionized in Recent Years

By Jason Spangler in Wagner Meters Newsroom | 0 Comment

The scope of flooring materials and adhesives to be installed atop concrete has significantly expanded over the years, bringing not only greater choices but new moisture-related challenges. Fortunately, in recent years, we’ve also gained a keener understanding of how best to test for moisture in concrete. Applying stricter scientific scrutiny to the options for testing […]

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ASTM F2170 Compliance: Guidelines for RH Preparation and Testing

By Jason Spangler in Concrete Information & Knowledge Base | 2 Comments

Your project’s specs likely demand it. Your pride of craft demands it. Certainly, your good business sense demands it. Complying with the ASTM F2170 standard when conducting an in situ relative humidity (RH) test in concrete is not optional. Fortunately, any Rapid RH® system you select makes ASTM F2170 compliance easy. Three key components of […]

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Does a Single-Use Sensor Make Sense for Me?

By Jason Spangler in Concrete Information & Knowledge Base | 0 Comment

There’s been a lot of buzz around our new reusable Rapid RH®5.0 Smart Sensors, and rightly so. The 5.0 reusable has game-changing technology that reduces the time, labor, and initial investment costs of using reusable relative humidity (RH) sensors to about as low as they can go. So why would anyone want to stay with […]

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Single-Use or Reusable: Innovative Smart Choices from Rapid RH®

By Jason Spangler in Concrete Information & Knowledge Base | 0 Comment

Smart Systems, Smart Sensors, Smart Choices 10 years ago, the Rapid RH® sensor revolutionized concrete moisture testing with a single-use, ASTM F2170-compliant relative humidity (RH) sensor. Today, the various Rapid RH® components combine to create a truly unique system that reduces costs, saves many hours, and is ridiculously easy to implement. In all that time, […]

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Reusable or Single-Use? Rapid RH® Now Has the Smart Choice for Any Application

By Jason Spangler in Concrete Products / Tools Concrete Information & Knowledge Base | 0 Comment

Smart Systems, Smart Sensors, Smart Choices is more than just a clever-sounding tagline; it represents a new way of thinking with the Rapid RH®. With the introduction of the 5.0 reusable Smart Sensor, Wagner Meters is also introducing the concept of Smart Choices: Customers should be able to choose which model is the fastest, the […]

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EasyCare CalCheck: The Smart Choice for Calibration Checks

By Jason Spangler in Relative Humidity (RH) Testing Concrete Information & Knowledge Base | 0 Comment

Fairy Tale or Reality? It’s time for your least favorite task…checking the calibration on your reusable relative humidity (RH) sensors. Instead of dreading the chore and putting it off like you usually do, you’re actually looking forward to it this time. That’s because every one of your new reusable Rapid RH® 5.0 Smart Sensors has […]

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Grout Problems: Can Concrete Moisture Taint Your Grout?

By Jason Spangler in Specialty Floors and Moisture Concrete Information & Knowledge Base | 12 Comments

Tile floors have never been noted for being susceptible to moisture problems, but lately, there has been an increase is moisture-related problems in tile flooring installations. Is the change in performance a result of different materials, different processes, or a new awareness of how moisture conditions in a subfloor can have a long-reaching impact on […]

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Now and Then: How Flooring Has Changed in 100 Years

By Jason Spangler in The Rapid RH® Concrete Moisture Test Relative Humidity (RH) Testing Concrete Information & Knowledge Base | 0 Comment

The past 100 years have seen significant changes in both the materials and the installation processes of the flooring industry. New Flooring Materials At the turn of the century, flooring choices included clay tile, linoleum, rubber, and cork, which were among the top choices for resilient flooring. From there, asphalt tile was introduced, and vinyl […]

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Understanding Different Types of Lightweight Concrete

By Jason Spangler in Lightweight Concrete Concrete Information & Knowledge Base | 1 Comment

The use of lightweight concrete dates back to as early as the eighteenth century, and as advances in building and construction technology have increased, so has the use of lightweight concrete as the benefits of lighter dead load concrete have become apparent. In the U.S., lightweight concrete became more common around the 1930s and continues […]

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Leveling Compounds: Concrete Moisture Can Slant the Results

By Jason Spangler in Relative Humidity (RH) Testing Concrete Information & Knowledge Base | 8 Comments

Concrete slabs are somewhat infamous for not being entirely level, even with the best care during the initial pour. Some flooring types/applications do not have the flexibility to withstand these uneven areas of a subfloor. The standard solution is to apply a leveling compound, which can effectively level the slab surface to tolerances that are […]

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How to Get Better Stains and Colors in Decorative Concrete

By Jason Spangler in Decorative Concrete Concrete Information & Knowledge Base | 0 Comment

Probably the largest responsibility faced by concrete flooring specialists is to deliver a finished floor that meets their clients’ expectations. While you, as the contractor, are probably well aware that final colors may vary from the chart that was used for selection, or that batch variations in color are not uncommon, it is just as […]

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24 Tools for Professional Hardwood Flooring Installation

By Jason Spangler in Moisture Meters Tools / Products Wood Division Knowledge Base | 5 Comments

As with any trade, hardwood flooring professionals need an assortment of tools to install a floor properly, safely, and in a timely manner. The choice of which tools to have on hand, however, can be daunting. While the number of tools is considerable (more than 50, according to the National Wood Flooring Association), here’s a […]

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7 Tools Flooring Professionals Can’t Be Without

By Jason Spangler in Moisture Meters Tools / Products Wood Division Knowledge Base | 0 Comment

In a field where technology is providing great insights into the flooring industry, it’s still important for every flooring professional to have the right tools for the job at hand. No matter how accurately your floor saw cuts or your flooring jack snugs the boards in, the floor you’ve just installed can be at risk […]

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Help for Flooring Professionals: Kits, Apps, Specs and More

By Jason Spangler in Concrete Products / Tools Concrete Information & Knowledge Base | 0 Comment

Flooring installers require a mass of information – product specs, technical knowledge, industry standards, materials knowledge, and more – and as the industry changes, so must their practices. New materials, new research, new technology, and new standards can all impact the daily operation of each level of the building and flooring industry. Even just in […]

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The Decision Made Easy: CaCl or RH Testing

By Jason Spangler in Calcium Chloride/MVER Test Concrete Information & Knowledge Base | 0 Comment

It’s a well-proven fact. Installing finished floor products on a wet concrete slab can be disastrous. But because you want the slab dry enough to avoid costly moisture-related problems, you measure the slab’s moisture. And now, thanks to a recent update to the ASTM F2170 standard for in situ relative humidity (RH) testing, you can […]

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3 Tips to Prevent Concrete Related Callbacks; Save Your Time & Reputation

By Jason Spangler in Best Practices & Case Studies Concrete Information & Knowledge Base | 0 Comment

Nothing can ruin your day faster than a callback to a jobsite you thought you were finished with. Callbacks inevitably cost you time, money, reputation and hassle as you determine what the cause of the problem is, who is responsible, and what it will take to correct the problem. At no time is this truer […]

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Hilti Concrete Drill Bit for Rapid RH® Smart Sensors

By Jason Spangler in Wagner Meters Newsroom | 0 Comment

Wagner Meters, the world’s leading manufacturer and supplier of moisture meters, announced today that it is now selling the Hilti TE-CD hammer drill bit. The drill bit enables flooring installers, inspectors and other professionals to easily and quickly create clean dust-free holes in concrete to place Wagner Meters’ Rapid RH® Smart Sensors at the correct depth so they can get the most accurate moisture readings.

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5 Things General Contractors Need to Know about Moisture in Concrete

By Jason Spangler in Useful Job Tips Concrete Information & Knowledge Base | 1 Comment

As a general contractor, you’re expected to know every aspect of the construction project. Of course, you need to trust the trade specialists on the team, but having key information can be crucial to your role in overseeing the schedule and budget of the project as a whole. Nowhere is this more important than in […]

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What to NEVER Expect on the Job Site

By Jason Spangler in Useful Job Tips Concrete Information & Knowledge Base | 2 Comments

Every construction job site is an exercise in teamwork as each contractor and specialist performs his or her role in the stages of the building project. Beginning with the designer and architect, each building project is a master plan of schedules, materials, costs, labor, and vision, and each person involved is expected to be a […]

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5 More Myths about Concrete Moisture

By Jason Spangler in Drying Concrete Slabs Concrete Information & Knowledge Base | 3 Comments

Every industry has its folklore and accepted traditions that may or may not be based on facts or best business practices. For concrete, some of these common myths suggest that there are still misconceptions to be found in the flooring and building industry, too… MYTH #1: Drying time can be estimated accurately. An industry rule-of-thumb […]

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