Large Outward Mounted Crawl Space Vent Cover - Encapsulation Seal

SKU: VC-LOM-B

10946 in stock

$25.00

Case Quantity
  • Quantity exceeds stock. Available quantity may still be added to cart.

Estimated standard delivery between January 06 and January 09. Order within . Upgrade for faster delivery at checkout.

  • Cover Dimensions: 21" W × 13" H
  • Fits Opening Size: Standard 8" × 16" foundation vents
  • Material: ABS plastic with UV protection
  • Mounting: Outward/surface mount to exterior foundation wall
  • Installation: Fasteners or adhesive (not included)
  • Insulation Compatible: Yes (glue insulation to interior)
  • Colors Available: Black, White
  • Application: Crawl space encapsulation and conditioning
  • One (1) large outward-mounted vent cover
  • Note: Fasteners or adhesive sold separately

We want you to be happy with your product!

Within 30 days of your order, we offer a 100% refund if a product was faulty, defective, or damaged in shipping and replacement is not feasible. While extremely rare, if we make a mistake we will also refund or replace the item.

New, unopened standard products may be returned within 30 days of delivery for a refund.

Restocking fees apply on opened boxes. Customer is responsible for return shipping costs for preferential returns.

Large Outward Mounted Crawl Space Vent Cover - Encapsulation Seal

Large Outward Mounted Crawl Space Vent Cover - Encapsulation Seal

$25.00

$25.00

Outward Mount Design

Attaches to exterior foundation wall over existing vents—no need to remove old vents or work inside the crawl space for clean, fast installation.

Moisture Prevention

Eliminates outdoor air infiltration to prevent humidity, condensation, and mold growth—creating the controlled environment essential for encapsulation success.

Built to Last

Durable ABS plastic with UV stabilizers won't rust, rot, or deteriorate like wood or metal covers—withstands decades of weather exposure.

Insulation Ready

Add thermal protection by gluing rigid foam insulation to the interior surface—enhances energy efficiency while maintaining the encapsulation seal.

Large Outward Mounted Crawl Space Vent Cover - Encapsulation Seal

Permanent Encapsulation Seal

The large outward-mounted crawl space vent cover provides a permanent seal for foundation vents during crawl space encapsulation or conditioning projects. Installing over standard 8" × 16" foundation openings, this durable ABS cover eliminates passive ventilation to create a controlled environment that prevents moisture intrusion, mold growth, and air quality issues.