The minimum ventilation requirement for a vented crawlspace is 1 sq. ft. of venting per 150 sq ft of crawlspace area.
what should you look for in an exterior inspection?
In an exterior inspection you are looking for situations and places were moisture can enter the structure.
Leakage problems are associated with__?
HUD found that about 40% of basement leakage problems were associated with improper surface grading.
What conditions do crawlspaces experience which cause problems?
In 2005 Advanced Energy Corporation conducted a study that confirmed that crawlspaces experience mold and moisture problems that can result in indoor air quality problems.
Humidity levels __% to ___% are easily found in dirt crawlspaces that have never been flooded.
Humidity levels 50% to 90% are easily found in dirt crawlspaces that have never been flooded.
Damp crawlspaces and wet materials can result in ______.
Damp crawlspaces and wet materials can result in structural damage.
What is grading used for?
Grading should provide a level of contoured surface for construction of the structure and direct surface water away from the structure.
These systems come with other problems moisture that may penetrate around windows doors or other areas can become trapped between the layers and become rotten and cause mold build up in underlaying structure.
What is the life expectancy of sliding?
The life expectancy of siding materials may vary widely from 10 to to as much as 100 years or more depending on the type of material, climate exposure, maintenance and other factors.
Common problems with guttering are associated with _______ and _______.
Common problems with guttering are associated with installation and maintenance.