Blown cellulose in West Palm Beach attics.

From a bare deck, R-38 of blown cellulose is about 11 inches. The same target in blown fiberglass is about 15. That four-inch difference is why a cottage with a low tie line gets cellulose, and a ranch in 33409 usually does not need it.

Cellulose is recycled paper treated for fire. It packs tighter and slows air better than fiberglass at the same depth. It also holds water. A stained deck, a fresh roof leak, or a “maybe” on the last storm is not a cellulose attic. We will say that at the hatch. If the old fill is already damp, it comes out. See attic removal.

Historic blocks are where this material earns its place. Flamingo Park, Grandview Heights, and the low roofs along Flagler. Open postwar attics west of I-95 almost always stay with fiberglass, because the volume is there and the leak risk is the same county.

The planner lets you switch materials and watch the inches and the dollar range move. It is still a planning range. The bid is after we see the deck. How West Palm Beach pricing is built.