Equilibrium Moisture Content Is Determined by Relative Humidity

Equilibrium Moisture Content Is Determined by Relative Humidity

By Larry Loffer in Woodworking Knowledge Base Wood Moisture | 0 Comment

Equilibrium moisture content is the moisture level where the wood neither gains nor loses moisture since it is at equilibrium with the relative humidity of the surrounding environment. In order to properly understand the effect of relative humidity on the moisture content of a piece of wood and the equilibrium with its environment, a basic understanding of some commonly-used terminologies […]

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RH and MC: An Environment of Change

By Larry Loffer in Wood Flooring Knowledge Base Moisture Content | 0 Comment

Determining wood moisture content (MC) is not like measuring the length of a nail–it is not a truly static trait of any piece of wood lumber, or even of a finished wood product. The changes might be small enough to go unnoticed–your bookshelf seems pretty stable, right? Or, they might be large enough to cause […]

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Vintage Wagner Meters Moisture Measurement System Still Running Strong after 36 Years!

By Larry Loffer in Other Topics Forest Products Articles | 0 Comment

“It’s amazing but true,” says Gerry Lane, President of Allen Logging Co. in Forks, Washington. Just recently, Larry Loffer, Wagner’s Sr. Industrial Systems Technician, received a call from Gerry Lane up in the far reaches of the forests on the Olympic Peninsula in northwest Washington State. He said that he had a little problem with […]

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The Dramatic Beauty and Strength of Tigerwood

By Larry Loffer in Woodworking Knowledge Base Tree / Wood Types | 0 Comment

With trees growing up to a height of 80 feet or more, it can be found in the top canopy of forests as well as the lower story and has no special soil requirements. In fact, its growing popularity has led to export restrictions in Africa from some regions to limit over-cutting and excessive logging.

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Temperature and Wood Moisture Measurement

By Larry Loffer in Wood Flooring Knowledge Base Moisture Content | 0 Comment

It is necessary to use moisture meters for wood to measure moisture content (MC) due to continual changes that occur in the relative humidity (RH) of a wood’s surrounding environment. Wood absorbs moisture from its ambient environment when the RH rises, and when RH decreases wood releases moisture. However, the correlation between RH and the […]

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Squeaky Floor Fixes

By Larry Loffer in Flooring Problems Wood Flooring Knowledge Base | 0 Comment

There are many reasons for those annoying wood flooring squeaks. They can begin when installing wood floors, or be caused by conditions that change after the floor has been in use for a while. Either way, understanding wood moisture content (MC) is key. It begins by ensuring that the wood’s MC is stable. Those who […]

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Wood Moisture Content and Wood Joints

By Larry Loffer in Woodworking Knowledge Base Wood Moisture | 0 Comment

Wood joinery exists to enable humans to link separate wood pieces together. Joinery is the heart of fine woodworking. Otherwise, the world would drown in the shavings of endless wood sculptures without the ability to connect pieces of wood! Engineers and woodworking project-makers alike can attest to the aesthetic and structural importance of strong and […]

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Watch Moisture Content in Wood Building Studs

By Larry Loffer in Woodworking Knowledge Base Wood Moisture | 0 Comment

Wood builders have known the value of wood moisture content assessment for generations. However, these times carry a new emphasis on measuring the moisture content of wood studs. Regulatory jurisdictions are expanding in cross-referenced ways to include moisture content measurement of building studs, long ignored by regulations as a safety hazard in wood structures. Times […]

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Kiln-Dry: What That Means for Wood

By Larry Loffer in Kiln Drying Forest Products Articles | 2 Comments

Forestry, done well, is a combination of science and nature which results in strong, durable wood. However, all wood species are harvested in the “green” condition, which is a term for the properties which behold wood in the wild. There’s Green Wood Many observers would be shocked at the high (“green”) moisture content (MC) of […]

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Mountain Wood Pests Part I – The Mountain Pine Beetle

By Larry Loffer in Other Topics Forest Products Articles | 0 Comment

The mountain pine beetle has infested much of British Columbia’s lodgepole pine, and it is killing millions of trees. And while normally, environmental conditions naturally inhibit the spread of Dendroctonus ponderosae, warming trends over the past 15 years have not provided the temperature shifts that would naturally control its population. The mountain pine beetle has […]

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