09/30/2026
Here's why your painted window trim looks bad after two winters... Wood absorbs moisture. Swells. Paint stretches. Wood dries out. Shrinks. Paint cracks. Water gets in. Freezes. Repeats.
Boral TruExterior doesn't play that game. It's not PVC, and it's not wood; it's a poly-ash composite (recycled fly ash + polymer) engineered to eliminate the wet/dry swelling cycle entirely.
Where wood trim absorbs 8-12% moisture, swells, and needs repainting every 3-5 years, TruExterior absorbs virtually none, resists rot completely, and takes paint once without the constant re-priming. Miter joints stay tight instead of opening up within a year or two, and it's stable enough to be approved for ground and masonry contact, something you'd never do with wood trim. It's backed by a 20-year limited warranty.
We stock Boral TruExterior. Make your window trim last. Ask our team about current pricing at BooneCountyLumber.com.