- Uncomfortable rooms
Floor are too hot in summer and too cold in winter. Caused by air movement between settled/undersized insulation and sub floor BIG Source of builder call-backs
- Plumbing and duct problems
In extreme cases, supply and drain lines freeze. HVAC ducts effectiveness reduced.
- Poor indoor air quality
Exhaust fumes and off-gassing of sol-vents, fuels, pesticides, herbicides, and other household chemicals stored in garages enter living space above.