22/09/2024
What is ‘engineered’ or ‘multi-layer’ timber?
‘Multi-layered’ or ‘engineered’ timber is the key to the strength and long-lasting properties of our windows and doors. It is created through a very old technique of layering wood sections with the grain of one section in the opposing direction to the grain of its neighbour.
Wood has a natural tendency to expand and contract, and when wet, warp in the direction of the grain. Multi layering therefore evens out any movement in the wood from moisture. This means that there is no warping or twisting and the wood remains rigid. This property of ‘engineered’ or ‘multi-layered’ timber is why it has been used to build wide span structures such as churches and bridges. The use of it in very moist areas i.e., next to rivers, pools or any other water is perfectly reliable due to its very predictable strength.
This use of the multi-layered timber was introduced into window and doors and ensures that the perfect fit with casement or sash and frame remains just as accurate as the day they are fitted. There is no warping or twisting to cause sticking or rubbing, the reason we use it throughout our range of doors and windows.
So, engineered timber is stronger, longer lasting and resistant to the issues that affect traditional wood.