Exterior Wall

Why Above Grade

Walls face constant exposure to weather, temperature swings, and environmental stress. These factors all play a role in premature assembly failure and increased risk for condensation.  Above‑grade insulation must not only deliver thermal performance but also protect assemblies from moisture imbalance and fire risk. PowerWool RigiBoard® is engineered to meet these demands, providing a rigid mineral solution that enhances durability, safety, and comfort. By placing insulation on the exterior, architects and builders create a continuous thermal envelope that improves energy efficiency and supports healthier indoor environments.

How It Works

Applied to the exterior of residential walls, PowerWool RigiBoard® forms a continuous layer of insulation that minimizes thermal bridging and strengthens the building envelope. Boards are mechanically fastened or adhered, integrating seamlessly with air and weather barriers. The rigid format simplifies detailing around openings and transitions, while its vapor‑open structure allows assemblies to dry naturally, reducing risk of trapped moisture. This approach supports modern construction sequencing and aligns with best practices for high‑performance residential design.

Benefits

PowerWool RigiBoard® offers a non‑combustible, dimensionally stable solution that maintains consistent R‑values over time. Its mineral composition of basalt and steel slag contributes to fire resistance and acoustic comfort, while its vapor‑permeable design supports long‑term durability of wall assemblies. Environmentally responsible and recyclable, RigiBoard® helps residential projects meet sustainability goals without sacrificing performance. For architects, it provides confidence in meeting codes and design intent; for builders, it delivers ease of installation and fewer callbacks. The result is a home that is safer, quieter, and more comfortable to live in, built to last for generations.