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Vent Covers

Open foundation vents let cold air, moisture, and pests into your crawl space. Sealing them is one of the most important steps in any crawl space encapsulation project. Crawlspace Depot carries exterior-mount foundation vent covers made from durable, UV-resistant plastic and interior-mount vent blockers that seal the opening from inside the crawl space. Our VentBlock products provide a fast, clean way to close off standard 8" x 16" foundation vent openings, and our exterior covers finish the job with a professional look from the outside. We also carry flood vents for homes in flood zones that require code-compliant ventilation.

  • Angled exterior foundation vent cover with textured matte finish, designed to cleanly seal foundation vents from outside the home Exterior foundation vent cover installed on a brick foundation wall, sealing an existing vent opening from the outside of the home

    Foundation Vent Cover

    Seal off old foundation vents quickly and cleanly with the Crawlspace Depot Foundation Vent Cover. Made in North Carolina and molded from durable, UV-resistant plastic, this vent cover is designed specifically for homes transitioning to a fully...

    $28.99 - $434.85
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  • VentBlock+

    VentBlock+

    This polyethylene panel provides a fast, clean and effective way to seal foundation vents when providing moisture control in a crawl space. The plus version of this product has a screen backing to restrict rodent entry for superior protection...

    $6.99 - $199.99
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  • VentBlock

    VentBlock

    This polyethylene panel provides a fast, clean and effective way to seal foundation vents when providing moisture control in a crawl space.  Designed to fit the traditional 8” x 16” foundation vent opening. Actual Size: 8.25" x 16.25" x...

    $4.59 - $131.70
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  • ATMOX Vent Cover - Internal Mount - 5 Pack

    ATMOX Vent Cover - Internal Mount - 5 Pack

    This crawl space vent cover mounts from inside the crawl space behind an opening. The covers keep air flow blocked from the outside. The large plastic plate is attached to the wall with screws and a drill or powder/gas/battery actuated nail gun. Item is...

    $128.00
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  • Smart Vent model 1540-520

    Smart Vent Flood Vent - Insulated

    Architects, builders, code officials and homeowners are all turning to SMART VENT automatic foundation flood vents to protect homes from the devastation and destruction that a hurricane, flood or other natural disaster can cause. SMART VENT foundation...

    $229.99
    Add to Cart
  • Smart Vent - Vented 1540-510

    Smart Vent Flood Vent - Vented

    Architects, builders, code officials and homeowners are all turning to SMART VENT automatic foundation flood vents to protect homes from the devastation and destruction that a hurricane, flood or other natural disaster can cause.  SMART VENT...

    $229.99
    Add to Cart

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