Follow along with Certified Professional Inspector® Julie Erck and learn some useful tips for inspecting the roof to a home!
For more inspection tip videos visit our YouTube channel at International Association of Certified Home Inspectors (InterNACHI) - YouTube
What is a “smoke arrestor”? Don’t you want the smoke to be able to exit the chimney flue?
It is stated that ventilation looks adequate. Is she using the rule “1 sq ft of vent area for every 150 sqft of attic space” found in Internachi training materials? From the video I’m estimating 1800 sqft of attic space and only 4 steel roof vents (https://www.homedepot.com/p/Gibraltar-Building-Products-Galvanized-Steel-Roof-Vent-38-sq-in-Net-Free-Area-in-Brown-RVG38BR/202092817 ) of 38 in^2 each each.
Owens corning says a roof this size needs 864 In^2 NFVA for a roof this size. That’s 23 of those little Gibraltar roof vents.
https://www.owenscorning.com/en-us/roofing/components/vent-calculator