Styrofoam

building materials · insulation · plastic foam

Keeps buildings toasty. Styrofoam is stuffed into walls, roofs, and foundations to trap heat inside during winter and keep cold out during summer, making homes more comfortable and energy-efficient.

Blocks water out. Because it's made of closed cells (tiny sealed bubbles), water can't soak through it, so it protects buildings from moisture and damage.

Light as a cloud. Styrofoam is so incredibly light and fluffy that it's easy to handle and install, even though it's incredibly strong at doing its job.

Perfect for crafts. DuPont makes green and white Styrofoam shapes specifically for art projects, flower arrangements, and decorations that you can paint and decorate however you want.

Made from tiny bubbles. Styrofoam is made of polystyrene plastic that's been filled with millions of microscopic air pockets, which is what makes it such a great insulator.