Although possible, air doesn't necessarily "move" inward due to temperature differentials. Moisture however, will always migrate toward the more d...
This question should be posted on one of the other forum sections such as carpentry. This section mainly concerns handicapped accessibility. MFD...
If the lamp will not be exposed to rain, a potential problem is that the lamp may not come on, or may be dim in cold weather.
Hardie-plank is a good durable siding material and holds paint well compared to wood. Don't look for meaningful insulation values in any type of...