Walls and Roofs
Why Your Walls Get Wet: A 'Building Science Made Easy' Guide to Understanding the Dew Point
...Air that is too dry can cause nosebleeds, chapped lips, and flare-ups of skin conditions like eczema. Read here about how to maintain healthy indoor air quality
Dust and allergens: Extremely dry air can increase the amount of airborne dust, which can irritate your respiratory system.
By staying in that 30% to 50% r...