Final answer:
It is false that concrete tiles should always be installed on battens. The necessity of battens depends on manufacturer's specifications, local building codes, and roof slope. Sometimes a direct-to-deck installation is recommended for modern concrete tiles.
Step-by-step explanation:
The statement that concrete tiles should always be installed on battens is false. While battens are used traditionally as part of the installation process for concrete roof tiles, they are not always required. The decision to use battens depends on the roofing system and the specifications set by the tile manufacturer, as well as the local building codes and the slope of the roof.
Battens are horizontal strips of wood or metal that are attached to the roof structure, upon which tiles are hung. In some cases, especially with modern concrete tile products, a direct-to-deck installation is recommended by manufacturers, where the tiles are installed directly onto the roof deck without the need for battens.
There are several factors that play into the decision to use battens or forego them. These include the weight of the tiles, the climate, and the potential for high winds or severe weather, which might necessitate a more secure installation method. Roof pitches also influence the installation method; steeper pitches often require battens to help hold the tiles in place securely, while lower pitches may allow for direct installation.
It's important to follow the manufacturer's guidelines for the specific roofing product being used as well as adhere to local building codes to ensure a proper and safe installation. Professional installers should always be consulted to determine the best installation method for a given project.