This manufacturer letter confirms that it is acceptable for IKO roofing products to be installed directly to the ZIP System roof sheathing. The provided conditions must be satisfied.
This 3-part specification includes a MasterSpec format for architectural specs in regards to the roof assembly for ZIP System roof panels and ZIP System peel and stick underlayment.
3-Part Spec (MasterSpec) Section 06 16 53.03 - ZIP System Roof