| 摘要 |
<p>The ventilating ridge capping for a tiled roof is made of plastic material and is shaped to adhere to the ridge slope. It has lateral tongues, approx. 62 mm long and 5 mm wide fitting closely against the tiles so as to permit release of air in the ridge area, at the same time preventing snow from being driven in. Rainproofing is provided by the two plastic shanks, approx. 67 mm long. Fixture is achieved by means of a roof batten in the apex point of the roof ridge.</p> |
