CRAWL SPACE VENTILATION
CRAWL SPACE VENTILATION
(OP)
DOES ANYONE KNOW THE PROPER AREA TO USE FOR AN 8"X16" CRAWL SPACE VENTILATION OPENING. OBVIOUSLY THE NET AREA IS NOT SIMPLY 8 TIMES 16, AND IT PROBABLY DIFFERS FROM MANUFACTURER TO MANUFACTURER BUT DOES ANYONE KNOW A CONSERVATIVE NUMBER TO USE.






RE: CRAWL SPACE VENTILATION
RE: CRAWL SPACE VENTILATION