Exterior Renovation Services
PVC trim board has become the preferred alternative to wood exterior trim for many renovation and new construction applications. Understanding its performance characteristics and limitations helps make the right selection.
The primary benefit is moisture resistance. PVC will not rot, absorb moisture, or delaminate regardless of weather exposure. It's particularly valuable at grade-level trim, around windows and doors where moisture accumulates, and at roofline elements.
Planning Your Project
PVC accepts paint well but needs no painting if installed in a desired colour. Many manufacturers offer PVC trim in white as a standard product; custom colours are available through paint application.
Thermal expansion is greater than wood. PVC must be installed with gaps at butt joints and between trim sections to accommodate expansion. Ignoring expansion requirements results in buckling in summer heat.
Working With D&D Exterior Finishing
Fastener selection matters. Stainless steel nails or screws prevent rust bleeding through painted PVC. Fasteners must be set flush and filled with appropriate colour-matched filler for a clean appearance.
Cutting and working with PVC is similar to wood. Standard woodworking tools apply. Cut ends should be primed with a PVC bonding primer or sealed with appropriate primer before installation at exposed joints.
Cost is higher than standard pine trim. The premium is typically 2-3x over basic wood trim, but the elimination of rot and repainting maintenance over the product's life means lifecycle cost comparison often favours PVC.