2. Most roofing leaks are caused by faulty or worn roofing.
Wrong! - Most roof leaks are caused by missing or defective flashings.

3. A standard wall stud measures 2"x4".
Wrong! - A standard wall 2"x4" stud is trimmed to 1-1/2"x3-1/2"

4. Connecting copper piping to galvanized piping is an accepted practice.
Wrong! - Certain metals react chemically to the presence of other metals (galvanic action) and will corrode.

5. It is better to purchase an oversized air conditioning unit or system.
Wrong! - An oversize A/C will achieve thermostat temperature before removing the humidity, causing the "cave effect".

6. You can judge the quality of drinking water by it's clarity and taste.
Wrong! - Taste and clarity are not necessarily indicators of pure water, testing is required.

7. Termites and carpenter ants eat wood beams.
Wrong! - Carpenter ants do not eat wood; they grove out nests in wood causing structural weakness.

8. In a 1" rainfall, over 1,000 gallons of water will drain off the average roof.
Wrong! - Your roof drainage system (gutters and downspouts) must function properly or you'll experience water penetration into the house or foundations (i.e., pilings, crawlspaces, etc.).

9. Pre-1978 homes are more likely to contain lead-based paint than newer ones.
Wrong! - If there are young children in a pre-1978 home, it should be tested for lead-based paint.

10. In a hot air system, turning up the thermostat raises the temperature of the heated air coming into a room.
Wrong! - Register air temperature doesn't change with the thermostat setting.

11. Most wet foundation conditions are caused by underground streams or high water tables.
Wrong! - Most water penetration conditions are caused by mishandling of roof and surface water.

12. Heat pumps deliver the same register temperature as forced air systems.
Wrong! - Heat Pumps generally deliver register air 15'-20'F lower .