zandchome

No dryer, range hood or fireplace vents in the area. I will try the bug spray experiment.

Has anyone seen this during an inspection. Found 6 melted vent baffles during an inspection. Baffles were located in the garage attic area and main attic area. Home is located in southwestern Illinois. Temperature outside was 75 degrees - attic temperature was below 100 on the day of the inspection. Baffles located in the northwest and southeast corners of the attic. House is approximately 9 years old. No evidence of burn marks on the roof sheath, trusses or paper backing on the insulation. No evidence of outside fires below the soffits. Thoughts, opinions, facts? Photo shown is the worst of the 6. Click to Enlarge 50.34 KB

What is the cause/source of the moisture – condensation? Recently performed an inspection on a home and found moisture, mold and even dripping condensation on the end and header joists visible inside the crawlspace. The moisture was also on the wooden subflooring where it abuts the end and header joists. Moisture was detected when I removed the fiberglass insulation. Moisture and mold was around the entire perimeter of the home. Insulation was fiber glass only, no paper backing. Other details – home was built in 2007, crawlspace with vapor barrier and 4 inches of gravel under the vapor barrier, outside temperature was approximately 45 F, down draft heating/cooling system with ducts running in the crawlspace, vinyl siding, attached garage (moisture was even along joists in the area and the front concrete porch). 5 of the 6 crawlspace vents were closed, but with the temperatures we have been having seemed normal to have the vents closed. Good positive grading around the exterior of the home. The rest of the subfloor and joists were clean with no signs of moisture, or mold. Possible causes that came to mind – Was the exterior of the house wrapped with Tyvex?, Was there rigid insulation installed before the siding was installed?, Is there a lack of insulation in the at the base of the walls? Please see the attached pictures. Any thoughts or comments are welcome. Click to Enlarge 56.89 KB Click to Enlarge 47.46 KB Click to Enlarge 67.92 KB