Radiant panels installed on wood or steel framing shall conform to the following requirements:
- Heating panels shall be installed parallel to framing members and secured to the surface of framing members or shall be mounted between framing members.
- Mechanical fasteners shall penetrate only the unheated portions provided for this purpose. Panels shall not be fastened at any point closer than 1/4 inch (7 mm) to an element. Other methods of attachment of the panels shall be in accordance with the panel installation instructions.
- Unless listed and labeled for field cutting, heating panels shall be installed as complete units.