Airtight

Airtight

In construction, airtight means that a building is sealed so that little or no outside air can pass through gaps, cracks, or joints. An airtight structure prevents unwanted drafts, moisture, and heat loss. This is especially important in small homes, like a tiny house, because even small leaks can have a big impact on comfort and energy efficiency.

Why it matters:

• Keeps the indoor temperature stable and reduces energy use.
• Prevents moisture from entering the walls, which protects insulation and structural materials.
• Improves overall comfort by avoiding cold drafts or uneven heating.