3.1402.4 Closed Crawl Spaces—Air Sealing Brick Curtain Wall with Piers

Basements and Crawl Spaces
Crawl Spaces
Desired Outcome: 
Well-sealed exterior wall prevents leakage and pests
Seal penetrations

Penetrations will be sealed with a durable material, including the following:

  • Sealing rain screen to crawl space connection
  • Re-venting exterior weep holes with wicking rope

A minimum expected service life of 10 years will be ensured

Reduce moisture vapor and water from entering the crawl space through the rain screen

Decrease probability of rot

Pest exclusion

If penetration is greater than ΒΌ", a pest-proof material will be used to fill the penetration before sealing

Prevent pest entry