Heartwood birdhouses are crafted in the USA. The primary birdhouse house material is naturally rot-resistant domestic cypress wood that is a scrap byproduct of lumber bound for furniture factories. All paints are industrial grade, non-toxic, acrylic latex designed for outdoor durability. The distinctive cypress shingle roofs, which are specially tapered, dog eared, and stone washed, give Heartwood birdhouses a custom look and lifelong durability.