AppRecs review analysis
AppRecs rating 3.4. Trustworthiness 55 out of 100. Review manipulation risk 29 out of 100. Based on a review sample analyzed.
★★★☆☆
3.4
AppRecs Rating
Ratings breakdown
5 star
60%
4 star
0%
3 star
0%
2 star
0%
1 star
40%
About Roofing Ventilation Calculator
The Ventilation Calculator from CertainTeed is the ideal tool for quickly determining the amount of ventilation products needed to outfit an attic space with proper balanced ventilation. Simply enter the length and width of the attic space or the overall square footage of the space and the Ventilation Calculator produces results based upon the NFA 1/300 rule.
