Ridge caps over standing seam roofs are often installed over which spacing to provide ridge venting?

Ridge caps over standing seam roofs are often installed over which spacing to provide ridge venting?

• A. 2x2 wood battens spaced to provide ridge venting
• B. 3x3 wood battens
• C. Metal channels
• D. No battens

Answer: (A)

Ridge venting on standing seam roofs is achieved by creating a small, continuous air gap along the ridge under the cap. Using two-by-two wood battens spaced to hold the ridge cap off just enough creates that vent channel while still supporting the cap. The space lets warm, moist air rise and escape at the ridge, with cooler air entering from below to replace it, improving ventilation and helping prevent moisture buildup. Using a larger batten would alter fit and appearance and might disrupt drainage, while metal channels typically don’t provide the same open passage for air. Installing with no battens would seal the ridge and eliminate the vent path entirely.

Ridge venting on standing seam roofs is achieved by creating a small, continuous air gap along the ridge under the cap. Using two-by-two wood battens spaced to hold the ridge cap off just enough creates that vent channel while still supporting the cap. The space lets warm, moist air rise and escape at the ridge, with cooler air entering from below to replace it, improving ventilation and helping prevent moisture buildup.

Using a larger batten would alter fit and appearance and might disrupt drainage, while metal channels typically don’t provide the same open passage for air. Installing with no battens would seal the ridge and eliminate the vent path entirely.