Metal Roof Without Battens

If you do not have good ventilation in the attic then i have some concern about installing the metal roof without battens.

Metal roof without battens.

The roofing is manufactured in panels that install using aluminum nails or screws that fasten the panels to wood stripping also known as nailers or battens. For example elevated battens are standard wood battens that have a block of plastic in some cases wood attached to the underside to elevate. These products usually have an integral airspace or an insulated cavity between the metal and the roof deck. While roof battens are most commonly made of metal or wood they can be made of other materials like plastic or composite there are several different types of batten some combine two materials to get the needed affect.

Types of roof batten systems. Roof battens are thin strips of material that may be made of wood plastic or metal. Can a metal roof be installed over my existing shingles without the use of battens. They re installed before the tile is laid on the roof and may serve more than one purpose.

The key in most cases is having a properly vented attic beneath that. Metal roof installations without an air gap are done all the time. This creates a thermal break which is very similar to a vertically seamed metal roof installed on battens. It sounds like the metal panels you re installing probably have a great deal of contact with the underlayment unless they are installed on top of battens.

This great question comes from edward c a homeowner who plans to have a new metal roof installed over the aging existing shingles on his single story home. In most cases there is nothing about a metal roof that increases the need for ventilation beyond what is needed for an asphalt shingle roof. Whereas many older metal roofs or metal roofs on larger buildings have been successfully installed over battens rather than solid decking it is the clear preference for residential applications that metal roofing always be installed over solid decking to avoid dangerous and damaging condensation issues. Note that you can have a metal roof.

This is the case with most vertical seam products.