Tag Archives: timber

Cracks

Previously we wrote about types of wood (wet, dried, laminated) and the shrinking of log houses and how we deal with the shrinking. In this post we want to show a little more about the actual drying process, and cracks. Because drying and cracks are very much related.

Why Does Wood Crack?

The photo below shows a crack in a wooden disc. Why does wood crack like this? Very simple: drying.

cracked wooden disc

cracked wooden disc

When wood dries, the drying process starts at the outside of the logs. While the humidity goes down from 15% to 12% near the outside of the log, more to the the center of the log the humidity initially remains at 15%. And that is a problem.

Continue reading

Types of Wood

Long ago the quality of a wooden house depended on the location of the factory. A factory in the north used wood from the north, which was growing more slowly and was denser and heavier.

wooden house

But times have changed. First of all there is a very active European wood market, and just like oil, wood is a raw material that is being actively traded all over the world. Also modern wood treatment techniques have improved the quality of wood as a building material in such a way that nowadays more factors come into play. It is not just northern wood that is a good building material. Continue reading

Shrinking Of Wooden Houses

A wooden house will shrink. No matter how dry the wood was initially, over time, during a period of approximately two years, all residual humidity will slowly evaporate from the wood and the wood will become more dry. Wood shrinks in one direction only: lateral, but not longitudinal, or in other words, logs will become thinner, but not shorter.

wood shrinking

How Much Will A Wooden House Shrink?

Continue reading