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Posts tagged with “wood movement”

Everything Moves

I’ve heard carpenters and trim installation contractors complain that PVC trim expands and contracts too much. My comment to them is: Yes, cellular PVC trim does move, but so do all other exterior building products, and many of them just as much as, if not more than, cellular PVC.
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Understanding Moisture Content and Wood Movement

(with Gene Wengert, The Wood Doctor.)

Expected movement can be accurately predicted, which means avoiding potential problems down the road.

In this article, we’ll explain the importance of understanding wood movement, how to use a moisture meter to measure the moisture content (MC) of trim, how to decide when a load of trim should be rejected, and how to accurately estimate how much trim will move after it’s installed. Read the full article…

Exterior Porch Details for Traditional Materials

Drive through a new subdivision today and you’re greeted by homes covered with large swathes of vinyl and plastic. Step onto a porch and meet more plastic—floors, railings, columns…the list goes on and on.

In many homes, plastic has replaced wood and permeated almost every exterior building product. Not surprisingly, builders have become fluent at installing plastic, while wood skills have begun to disappear. Just when we need them most. Read the full article…

Moisture Content & Wood Movement – Toolbox

Wood is hygroscopic, which means its moisture content (MC) will fluctuate based on the relative humidity (RH) of the surrounding air. As humidity increases, the MC increases, and the wood expands, and as the humidity decreases, MC decreases, and the wood shrinks. This relationship is referred to as equilibrium moisture content (EMC), and can be accurately predicted. Read the full article…