Why are vents in a crawlspace such a big problem?
Once upon a time, certain building codes required vents be placed in crawl spaces beneath homes during the construction phase. Since that time, building officials have realized these requirements are incorrect since vents allow hot and humid summer air to flow into crawlspaces promoting condensation, wood rot and mold growth. In winter months, open vents allow cold air to enter crawlspaces and flow unrestricted into upper levels increasing heat loss and lowering energy efficiency. Thankfully, building codes are changing. In the near future a vented dirt crawl space will be a thing of the past. Keep in mind, sealing crawlspace vents is just one of two necessary steps toward improving energy efficiency and indoor air quality. The other vital step involves encapsulating a crawl space – separating your home from moisture-laden soils below. Thrasher Basement Systems, Inc. offers both the CleanSpace Encapsulation System and crawl space vent/crawl space door covers for a complete and permanen
