Rigid foam insulation having a tongue-and-groove coupling

An insulating member comprises a body of rigid foam material having a first connecting edge surface and a second connecting edge surface， a groove formed into the rigid foam material of the body along the first connecting edge surface， and a tongue formed from the rigid foam material of the body along the second connecting edge surface. The groove， when viewed in a transverse cross-section， tapers from narrow to wide in a direction extending from its opening and into the body. The tongue， when viewed in a transverse cross-section， tapers from wide to narrow in a direction toward the second connecting edge surface. The tongue is bifurcated along its length into first and second ridges by a wedge-shaped void. A polymer coating of polyurea or polyurethane substantially covers the tongue and structurally reinforces the tongue allowing the first and second ridges to flex toward one another without breaking.

一种绝缘构件，包括由硬质泡沫材料制成的本体，该本体设有第一连接边缘面与第二连接边缘面；沿第一连接边缘面开设于本体硬质泡沫材料内的凹槽，以及沿第二连接边缘面由本体硬质泡沫材料成型的凸舌。该凹槽在横向截面视角下，自其开口向本体内部延伸的方向上呈由窄至宽的锥形。该凸舌在横向截面视角下，朝向第二连接边缘面的方向呈由宽至窄的锥形。凸舌沿其长度方向通过一楔形空腔被分隔为第一脊部与第二脊部。一层由聚脲或聚氨酯构成的聚合物涂层基本覆盖该凸舌，并对其进行结构加固，使得第一脊部与第二脊部可相互靠拢弯折而不会发生断裂。