How to Protect Cedar Shake in the Damp Puget Sound Climate

Cedar shake roofing has long been a popular choice for homeowners in Seattle and surrounding Puget Sound communities due to its natural beauty, charm and insulation properties. However, in damp and rainy climates like the Pacific Northwest, maintaining a cedar shake roof can require a bit more effort.

Cedar is a natural material that, without upkeep, is vulnerable to moisture, mold, mildew and decay. Despite the potential vulnerabilities, cedar shake can still be great for Seattle homes as long as owners take proper steps to protect it.

Why Cedar Shake Needs Protection in a Damp Climate

Cedar shakes are naturally durable, but they are not impervious to the elements. In particularly damp climates, moisture can seep into the wood, causing it to swell, crack and eventually degrade. As the wood absorbs moisture, it creates an ideal environment for mold and mildew to thrive, leading to discoloration, rot and a weakened roof structure.

Damp conditions also accelerate the natural processes of erosion and wear on cedar shakes. Over time, the shingles lose their natural oils, which act as a protective barrier against water penetration. Without proper care, these shingles can become brittle and prone to breakage.

Steps to Protect Cedar Shake in a Damp Climate

Choose High-Quality Cedar Shakes

The first step in ensuring your cedar shake roof lasts in a damp climate is selecting high-quality, sustainably harvested shakes. Western Red Cedar is often the preferred choice because of its natural resistance to moisture and decay. If you’re considering cedar shakes, you may want to ask your roofer who their supplier is and if their shakes are treated with preservatives to prevent rot.

Opting for thicker shakes also provides better protection against moisture penetration and helps prolong the lifespan of the roof. Always work with a roofing professional that has extensive experience installing cedar shakes, like Chet’s Roofing & Construction Inc., to ensure you’re getting the best material for your needs.

Regular Cleaning and Maintenance

One of the best ways to protect your cedar shake roof is to have it regularly cleaned and maintained by a qualified roofer. Debris such as leaves, moss and algae can trap moisture against the shingles, leading to accelerated wear. Cedar shake upkeep should include:

• Removing debris: Professionals should periodically clear leaves, twigs and other debris from your roof, especially during the fall and spring. They may use a soft-bristle broom or blower to gently sweep the surface, being careful not to damage the shingles.
  
  
• Moss and algae treatment: In a damp climate, moss and algae are common problems. Qualified cedar shake roofers can use a roof-safe moss treatment to prevent the growth of these organisms. We always avoid using harsh chemicals that can damage the wood or surrounding landscaping.
  
  
• Washing the roof when needed: While it’s important not to pressure wash cedar shakes, a professional may wash them with a gentle solution of water and mild detergent. This helps remove dirt and grime without causing damage to the wood.

By having your roof periodically cleaned and treated, you reduce the chances of moisture accumulation and prevent the growth of mold and mildew.

Install Proper Ventilation

Proper ventilation is crucial for the longevity of your cedar shake roof. Ventilation helps regulate airflow and moisture levels in your attic or roof space, preventing condensation and excessive humidity buildup.

Without adequate ventilation, the trapped moisture can cause the cedar shakes to deteriorate more quickly. A roofer can advise you on whether your roof has enough intake and exhaust vents to promote airflow. This will help keep the underside of your cedar shakes dry and prevent the growth of mold and mildew.

Apply a Protective Coating

Applying a protective sealant or coating is one of the most effective ways to protect cedar shakes from moisture damage in a damp climate. There are various types of protective coatings available, including:

• Waterproofing sealants: These sealants are designed to prevent moisture from penetrating the wood while allowing it to breathe. Roofers should use products that are specifically formulated for cedar roofing to avoid discoloration or damage.

• Wood preservatives: Preservatives contain fungicides and insecticides that help prevent rot, mildew and pest damage. These professionally applied treatments can extend the life of your roof and prevent the growth of harmful organisms.

It’s essential that these coatings be reapplied every few years, as their effectiveness will wear off over time due to exposure to the elements.

Ensure Proper Roof Installation

Proper installation is key to protecting your cedar shake roof in a damp climate. Installing cedar shakes is a different process from traditional composition shingles or metal roof installation. You should make sure your roofer has experience ensuring the right overlap and spacing to allow for optimal drainage and airflow.

The shakes also need to be fastened properly to avoid gaps and water infiltration. Over time, wood can shift, and improper fastening can lead to leaks and other issues.

At Chet’s Roofing & Construction Inc., we pride ourselves on delivering expert installation services, ensuring your cedar shake roof is perfectly suited for the challenging climate conditions of the Puget Sound area.

Monitor for Damage and Schedule Timely Repairs

Even with the best care, cedar shake roofs may eventually experience wear and tear. It’s important to monitor your roof for signs of damage. Call a qualified roofer to replace damaged shingles promptly to prevent water from entering the roof structure.

Trust Roofers Who Have a Long Track Record of Installing, Repairing and Maintaining Cedar Shake Roofs

Maintaining a cedar shake roof in a damp climate requires a combination of good materials, regular maintenance and proper installation. At Chet’s Roofing & Construction Inc., we specialize in roofing solutions for the unique weather conditions in the Seattle area. Whether you need a new cedar shake roof, routine maintenance or expert repairs, our experienced team is here to help.

Contact us today for a consultation or inspection, or give us a call at (877) 611-1514 and let us help you keep your cedar shake roof in top condition for years to come.