Installation - Trimming, Cutting and Sealing Requirements

While LIFESPAN is pressure treated throughout the substrate, cross-cutting and any other cutting, notching, etc. of LIFESPAN products may expose wood with a lower concentration of treatment. In order to maximize service life of LIFESPAN products and align with industry standards, it is important (and a requirement of the LIFESPAN substrate warranty) that all cut surfaces, notches, and bored holes be liberally swabbed with a brush-on or spray wood preservative.

Suitable products contain zinc naphthenate, such as Wolman Wood Preservative Clear, Cuprinol Clear, Dussek 8% ZnN, Protecto-Zinc and Greens Clear Wood Preservative.

It is recommended to coat exposed end cuts and mitre joints with a good quality exterior wood primer before final painting.

Any alteration of the shape or size of the product by machining (other than as a result of sawing to length or notching as required for fitting or joining) will void the 30-year warranty.