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See Covers for Crawl Space Vents
- To cover crawl space vents, you can123:
- Stuff a small trash bag with insulation and place it within the vented area.
- Plug the vents from the outside with foam blocks made specifically for this purpose. Remember to remove the plugs when the weather turns mild in the spring.
- Use special foam blocks or crawl space vent covers to seal the vent from outside when the weather changes to cold.
- Install automatic vents that operate without electricity.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.When you know you've got a really bad cold front coming in, many folks recommend blocking off and insulating your crawlspace vents for those couple days. This can be done by taking a small trash bag, stuffing it with insulation, then placing it within the vented area.home.howstuffworks.com/green-living/block-crawl …The simplest way to close foundation vents for the winter is to plug them from the outside with foam blocks made specifically for this purpose. Just remember to remove the plugs when the weather turns mild in the spring.www.thisoldhouse.com/heating-cooling/21173202/…If you decide to close the foundation vents, special foam blocks or crawl space vent covers are available to seal the vent from outside when the weather changes to cold. Another good option is to install automatic vents that operate without electricity.airflowacademy.com/crawl-space-vents-open-or-clo… Amazon.com: Crawl Space Vent Covers
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