For example, roof material must be strong enough to withstand damage by the sun, rain, snow, and winds. OFDA-supplied plastic sheeting has been very effective as roofing material.
例如，用于建造屋顶的材料必须足够牢固，以经受住日晒、雨淋、大雪和刮风的考验。美国对外灾难援助办公室提供的塑料薄膜用于建造屋顶已经被证明是非常有效的。
Juyuan plastic extruded board can be widely used in planting roofing, a brand new environmentally-friendly heat insulation form, and give good use effect.
聚远挤塑板可广泛应用于种植屋面这一全新的环保型的保温形式中，其使用效果良好。
If needed, concrete can be poured directly on Juyuan plastic extruded board to let the board to be coupled with roofing forming a rigid whole.
如果需要，也可在聚远挤塑板上直接浇注混凝土与屋面联结成刚性整体。
Put Beipeng plastic extruded board on roofing waterproof layer so that the waterproof layer is protected from damage by temperature difference, ultraviolet radiation, external or man-made impact.
把北鹏挤塑板放置于屋面防水层之上，使防水层免受温差、紫外线和外界或人为撞击的破坏，从而保护防水层。
Put Beipeng plastic extruded board on roofing waterproof layer so that the waterproof layer is protected from damage by temperature difference, ultraviolet radiation, external or man-made impact.
把北鹏挤塑板放置于屋面防水层之上，使防水层免受温差、紫外线和外界或人为撞击的破坏，从而保护防水层。
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