TAMKO MetalWorks Over ZIP Sheathing: Underlayment Still Matters
Bulletin dated: August 28, 2019
TAMKO accepts the specified ZIP roof sheathing with MetalWorks steel shingles when both manufacturers’ installation requirements are followed. That includes MetalWorks underlayment requirements and applicable fire classification
TAMKO technical bulletin: Huber Engineered Woods ZIP System with MetalWorks.
What this means for your roof
TAMKO accepts the specified ZIP roof sheathing with MetalWorks steel shingles when both manufacturers’ installation requirements are followed. That includes MetalWorks underlayment requirements and applicable fire classification. Acceptance of the deck does not eliminate the rest of the roof-system requirements.
A useful question for your contractor
Which underlayment and fire-rated assembly are required over this ZIP deck?
Ask for the answer to be tied to the actual roof condition and the exact product being installed. Keep the agreed repair or installation detail with your estimate and project photos.
Bulletin dated: August 28, 2019. The date shown identifies the manufacturer document used for this summary.
Read TAMKO: Huber Engineered Woods ZIP System with MetalWorks
This homeowner summary explains the cited bulletin. The complete manufacturer document and current product instructions govern the installation details. A requirement for one manufacturer or product should not be transferred to another without checking.