Hello Sprinklerforum, I have a location adding a ceiling to an area that is open with upright heads, No biggie. Using Flex Head lines for the first time. Do I still need the clearance hole 1" bigger around the sprinkler head in the ceiling tile? Concealed heads.
-- Best regards, Charles Thurston [email protected] MYRTLE BEACH FIRE SAFETY GROUP A Division of Pye-Barker Fire Safety 1445 Cannon Road Myrtle Beach, SC 29577 (843) 916 - 8787 (843) 839 - 3473 facsimile
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