From Rice Fields to Your Exterior

ACRE™ by Modern Mill is built from upcycled rice hulls — the protective outer layers of rice grains discarded during food production. Instead of sending millions of tons of agricultural waste to landfills, the hulls are polymer-fused into siding planks with a realistic woodgrain finish. The science behind the material is what makes it remarkable: rice hulls naturally contain high levels of silica, which provides exceptional defense against moisture absorption, rot, and pest infestation.
Unlike wood, rice hull composite has no natural grain pathways to absorb water or invite pests. The polymer-fused core is denser than hollow PVC vinyl yet lighter than natural lumber, and it holds fasteners and paint the way builders expect. The result is a siding that behaves like wood on the wall but resists the three things that kill wood siding: water, insects, and time.
The short version
- ACRE by Modern Mill is built from upcycled rice hulls, the protective outer layers discarded during food production, polymer-fused into siding planks with a realistic woodgrain finish.
- Rice hulls naturally contain high levels of silica, which gives the material exceptional defense against moisture absorption, rot, and pest infestation.
- Because the polymer-fused core has no natural grain pathways, the siding has none of the routes wood offers for water uptake or insect entry.
- The composite core is denser than hollow PVC vinyl yet lighter than natural lumber, and it holds fasteners and paint the way builders expect.
- The honest trade-offs are cost, since rice hull composite runs higher per square foot than vinyl, and a shorter track record than fiber cement.
Why Homeowners Are Switching
The practical benefits stack up. It does not rot, split, or warp; it stands up to harsh coastal climates and freeze-thaw cycles; and it never needs the maintenance schedule of natural timber. For homeowners comparing materials, the honest trade-off is cost: rice hull composite runs higher per square foot than vinyl, and it is a newer product with a shorter track record than fiber cement. But for anyone who wants the look of real wood without the rot risk, it is the strongest option on the market today.