Here counter battens (1" x 4") are nailed to the roof deck from soffit to ridge, and battens (2" x 2") are placed above the counter-battens and nailed to the deck (Fig. 1).The batten and counter-batten construction provides a unique inclined air channel running from soffit to ridge. The bottom surface of the channel is formed by the sheathing. The top surface is created by the underside of the stone-coated metal and is broken at regular intervals by the 2" x 2" batten wood furring strip (into which the shakes are fastened). The batten and counter-batten and similar systems provide an air space wherein the solar irradiance absorbed by the metal roof heats the air within the space and induces a natural convection airflow, which we define as above-sheathing ventilation.
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机译：在这里，将反板条（1“ x 4”）从拱腹到山脊钉在屋顶甲板上，将板条（2“ x 2”）放在反板条上方并钉在甲板上（图1）。反木条结构提供了从拱腹到山脊的独特倾斜空气通道。通道的底表面由护套形成。顶面是由石材涂层金属的底面形成的，并由2“ x 2”压条木支撑条定期固定（固定摇杆）。板条和对接板条以及类似的系统提供了一个空气空间，其中金属屋顶吸收的太阳辐射加热了空间内的空气并引发了自然对流气流，我们将其定义为鞘上通风。
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