You should consult the prevailing codes and AHJ before installing a CKV hood to verify the required clearances to a type I Hood. Generally a Type hood will require 18” of clearance to a combustible material, 3” to a limited combustible material and 0” to a non-combustible material. Most CKV manufacturers offer accessories called stand offs or air spaces that can be added to the CKV hood to insure proper clearances are maintained and enclosed.
(See Page 7)
