underlay and decking required? | Ask The Experts Forum

Edward Ake 8/12/2013	I have to install a metal tile roof for a new construction in a tropical / coastal environment. Design calls for exposed rafters with sheet rock in between. Above the sheet rock the plan calls for solid insulation (Polystyrene) battens and then the metal roof. Is there a need for decking and/or underlay or is the design adequate? Thanks for your help	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/18667/find/
Todd Miller Isaiah Industries, Inc. 8/12/2013	I would recommend decking and underlayment, to avoid condensation. I also would suggest you consider aluminum as an option over steel since you're in the islands. I know that the following MRA manufacturer members make aluminum tole facsimile products: ATAS International, Metal Sales, Classic Metal Roofing Systems.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/18668/find/
Eric Novotny An informed customer is the Best Customer! 8/13/2013	Do you mean battens or baffles? +1 on running aluminum. That is a must.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/18669/find/

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