How to Seal or Treat Cypress Piers

Cypress is one of the most durable exterior hardwoods because the oil in its heartwood prevents moisture-related decay. Native to the Southeastern and Gulf Coast United States, cypress grows in coastal swampland, which makes it a perfect fit for exterior projects such as decking and water piers. Cypress piers should be sealed and treated regularly to maintain a healthy and lifelong sheen.

Pressure washer
Bleach
Wood putty (if necessary)
Clean brush
Exterior-rated light stain
High-quality wood sealant

Instructions

- 1
  Mix equal parts bleach and water. Apply the solution with a pressure washer on the low setting. The pressure washer removes mildew stains from the wood and prepares the pier for staining or sealing. Allow the solution to set for 15 minutes and rinse with fresh water. Wait one week for the deck to thoroughly dry before staining and sealing.
- 2
  Apply a light stain with an application brush. Use a stain with an exterior grade. Light, exterior-grade stains are available at your local paint or hardware store.
- 3
  Apply a high-quality sealant with an application brush. The sealant protects the cypress against moisture buildup. Sealants are available at your local paint or hardware store.

How to Seal Exterior Cinder Block Fences

Do-it-Yourself Asphalt Siding

Exterior Home Repair