Why is it important to seal unused raceways entering buildings?

Sealing unused raceways entering buildings is primarily important to prevent pest intrusion. Unsealed raceways can create pathways for rodents, insects, and other pests to enter the building, potentially leading to various issues such as contamination, damage to electrical systems, and health concerns for occupants. By sealing these raceways, you eliminate these entry points, thereby enhancing the overall safety and integrity of the structure.

While enhancing appearance and preventing dirt accumulation may have some relevance, they are not the primary reasons for sealing raceways. Additionally, while compliance with regulations is crucial, the specific focus on pest intrusion highlights a key safety concern that directly impacts both the building environment and its tenants. Sealing raceways is therefore a proactive measure to mitigate risks associated with pest invasion in residential and commercial spaces.