How can I effectively weatherproof a wood sign to ensure its longevity and durability?

To effectively weatherproof a wood sign for longevity and durability, you can follow these steps:

1. Start by sanding the wood sign to create a smooth surface.
2. Apply a wood primer to seal the wood and prevent moisture penetration.
3. Use an outdoor wood sealant or varnish to protect the sign from UV rays and water damage.
4. Consider adding a top coat of polyurethane for extra protection.
5. Reapply sealant or varnish every 1-2 years to maintain the weatherproofing.

By following these steps, you can ensure that your wood sign remains in good condition and withstands the elements for years to come.