Choose the Right Insulation
Performance. Installation. Durability. Dow Building Materials† is a leader in insulation science. In fact, we invented STYROFOAM™ extruded polystyrene insulation. Today, we have a science-based insulating solution for every area of your home. Whether it's the foam's closed cell structure, unique slots and grooves that ease installation, or specialized facings for extra strength and durability, added R-value, and moisture resistance, you'll appreciate the superior performance of STYROFOAM insulation products:
Closed Cell Foam Structure – Foam with no holes or voids that water can penetrate. It resists moisture and will maintain its R-value over time. The result, high compressive strength and unparalleled resistance to water penetration. This is the only kind of foam that carries the STYROFOAM brand name.
R-Value – A measurement of resistance to heat flow. The greater the R-value, the greater the thermal efficiency—and a small increase makes a big difference. Cavity insulation only insulates between wood studs, leaving those studs un-insulated. Rigid insulation covers the entire wall, providing a continuous layer of thermal protection and increasing the overall R-value and energy efficiency.
| Heat loss is indicated on a scale of red, the most heat loss, to purple/blue — no heat loss. |
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| A house with OSB and R-13 batts — a good start, but look at all the thermal shorts.** |
A house with OSB and R-13 batts, covered with 1/2" rigid foam insulated sheathing. NOW, you can see the difference adding insulated sheathing makes.** |
| **Graphic re-creation of thermal bridging in a typical building wall envelope. |
Moisture Resistance – Some insulation products absorb and hold water which reduces insulation performance and can lead to mold growth. STYROFOAM extruded polystyrene insulation resists water absorption and does not provide a nutrient source for molds. So, STYROFOAM insulation provides long-term insulating performance while reducing the potential for mold growth within the insulation.
Strength and Durability – STYROFOAM insulation is rigid, so it's durable and maintains its integrity during installation and for years after. Yet, it's easy to cut and work with.
