##关于巴特和毯子隔热材料巴特和毯子以捆或卷出售。当绝缘切成4英尺时。或8英尺。长度并用捆绑销售，每件被称为巴特。当隔热材料以长卷长出售时，它被正确称为毯子绝缘。在大多数情况下，巴特或毯子的宽度对应于框架湾的大小，约15英寸或23英寸宽。玻璃纤维板玻璃纤维棒的R值范围为3.2至3.8英寸，具体取决于其密度。浓密的棒状面积具有较高的R值，因为玻璃纤维与空气口袋之间的比率已经优化。草率的玻璃纤维巴特安装的示例，带有压缩区域和空隙都太普遍了。为了使玻璃纤维表现良好，必须完美地安装它们。 It’s essential that the batts be split to accommodate wiring (click photo to enlarge) and cut exactly to fit the framing bay where they are installed. Small voids can significantly impair the performance of fiberglass batts. Fiberglass batts are air-permeable—they do a poor job of resisting airflow—so it is essential that they be installed in continuous contact with an impeccable barrier to air movement. For the very best performance, fiberglass batts should be installed in a sealed cavity (for example, a stud or joist bay) with an air barrier on all six sides. For more information on fiberglass batt installation, see Installing Fiberglass Right. FOUR SIGNS OF A GOOD FIBERGLASS JOB: Continuous, snug, and full: Insulation should be installed without gaps, including at corners. Batts should be trimmed a little oversize so that they fit the cavity snugly. The entire framing cavity should be filled, without any air gaps between the insulation and the drywall. Attic insulation should be installed over wall top…