Any person 18 years of age or older who knowingly allows (i) a minor under the age of 15, (ii) a minor 15 years of age or older with whom he maintains a custodial relationship, including but not limited to as a parent, step-parent, grandparent, step-grandparent, or who stands in loco parentis with respect to such minor, or (iii) a mentally incapacitated or physically helpless person of any age, to be present in the same dwelling, apartment as defined by § 55.1-2000, unit of a hotel as defined in § 35.1-1, garage, shed, or vehicle during the manufacture or attempted manufacture of methamphetamine as prohibited by subsection C1 of § 18.2-248 or any substance containing a detectable amount of fentanyl, including its derivatives, isomers, esters, ethers, salts, and salts of isomers, is guilty of a felony punishable by imprisonment for not less than 10 nor more than 40 years. This penalty shall be in addition to and served consecutively with any other sentence.