In new construction when you see pink insulation you think Owens Corning.  They trademarked the color pink, did an excellent job of marketing their unique color and as each new building is constructed it temporarily becomes an advertisement for their product.  Now another company is following their lead with the color teal blue.

BluWood is treated wood used in framing for residential or commercial buildings, and according to their website "provides the building industry with a new level of defense for protection of above ground, covered structure wood framing components against the costly, damaging effects of mold fungus growth*; rot fungi and wood ingesting insects; as well as limiting moisture absorption, a key necessary element for mold growth".

BluWood is treated in a two step process.  First a substance is absorbed into the lumber to create a water repellent, semi-permeable film, which controls moisture absorption and allows the wood to breathe.  The second step is the application of a preservative that provides protection against mould and insects such as carpenter ants and termites.

The blue color is not the natural color of the treatment products but rather a non-toxic dye that shows the coverage area of the treatment and makes BluWood easily identifiable even from a distance when being used on a construction site.  Since teal blue is associated with water it connects the mositure related qualities of the product in the minds of consumers.

If this trend continues in the building materials industry new neighborhoods may be more colorful during construction than when completed.