The core of a laminate plank is typically made of wood fibers bound with resin. HDF has a higher compression ratio, resulting in a denser, less porous material. This density helps prevent atmospheric humidity from penetrating the core as quickly as it would in lower-density boards. While HDF is not 'waterproof' in the sense of standing water immersion, its structural stability under typical humidity levels is superior, aiding in the long-term integrity of the locking joints in various climates.
Ask an ExpertLaminate
Does higher density fiberboard improve moisture tolerance in laminate?
Yes, high-density fiberboard (HDF) generally improves moisture tolerance compared to lower-density alternatives. HDF’s tighter composition and reduced porosity make it less prone to rapid expansion or swelling when exposed to fluctuations in environmental moisture.