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Over half of the indoor air quality problems result from ____________________? 1. Increasing toxicity of mold 2. Inadequate ventilation 3. Excess dust due to insulation 4. Low oxygen levels.
What are the most common gases used between the two glass panes in double-pane glazing?
Evidence of moisture problems in a building can include: Damp feeling, odors; mold and mildew; peeling paint and sweating pipes Shrinking, warping, rotting wood; drawers that stick Condensation, frost and ice dams on windows Discoloration corrosion, oxidation, or rust of building materials All of...
What are the conditions that must exist for mold growth to occur? Mold spores must be present. Temperatures must be between 35°F and 100°F. A naturally occuring food source must be available. Moisture must be available in sufficient quantities. All of the above
These lectures provide more detailed information about the principles of convection.
Core: Smaller pipes to nearby fixtures. Requires thoughtful design of plumbing fixtures. Saves hot water with smaller, shorter pipes.

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