QuietCool 2830 CFM Smart App Controlled 3 Speed Gable Mount Attic Fan Item Weight:28 5 For Use Over Cork 5 For Use Over Cork Underlayment Yes Installation Type Interlocking Finish Type Medium Use Location Indoor Water Protection Water resistant Actual Thickness (Millimeters) 5 Sample Available Yes Color Finish Family Brown Width Measurement 20 in Sample Item Number 1124844 Length Measurement 20 in Corresponding Moulding Item Number N A 05 Width Measurement 20 in Color Finish Family Brown Installation Type Interlocking or Glue (adhesive) Waterproof Yes Length Measurement 20 in Corresponding Moulding Item Number N A Fire safety sense shut off 25 in Rough Opening Height (In