| 摘要 |
<p>The invention relates to the field of heated ceilings comprising a heater element layer interposed between a thermally insulating backing and a surface covering. The technical problem posed is the poor thermal efficiency and difficulty of installation of such ceilings installed on site from separate layers. The present invention provides a modular panel comprising a heater element layer, and a thermally insulating backing layer secured to the surface covering, which is self supporting, with the backing and surface layers extending laterally beyond the beater element layer.</p> |
