沥青油毡防水卷材出现鼓包的情况在实际工程中经常出现。一般在下面两种情况下比较容易出现：一种是室内蒸气透过结构层渗透到普通防水卷材的底面；另一种是在保温层或找平层中留有一定的水蒸气，这些水汽蒸发或膨胀使普通防水卷材出现鼓包。鼓包一般从底层卷材开始由小到大，逐渐发展，有的大小鼓包成片串连，大的直径可达200～300mm，局部隆起高达50～80mm。  

The situation of drumming in asphalt linoleum waterproof rolls is often found in practical engineering. General in the following two situations: one is more prone to indoor vapor penetrate into the bottom layer of ordinary waterproof material; the other is on the insulation layer or leveling layer with a certain water vapor, or the expansion of evaporation so that ordinary waterproof membrane bulge. Bulging from the bottom sheet generally began to develop gradually, some size from small to large, bulging into series, large diameter is 200 ~ 300mm, local uplift as high as 50 ~ 80mm.  

对于沥青油毡防水卷材出现“鼓包”而渗漏时，一般可根据“鼓包”的大小以及严重程度，采用不同的处理办法。当“鼓包”的直径较小时（一般是指鼓包的直径小于80mm），通常采用抽气灌粘合剂加以处理。具体做法：在鼓包的两边钻两个小孔，一孔用针筒将鼓包内的空气抽出，另一孔用针筒注入粘合剂，然后用力碾压，使之与普通防水卷材的基层粘结牢固。最后在两个针孔处用密封材料封严实。对于“鼓包”的直径较大时，一般将“鼓包”割除，重新修补。

Generally speaking, different treatment methods can be applied to the size and severity of bitumen felt waterproofing membrane when it appears "bulging". When the diameter of the "drum" is small (usually the diameter of the drum is less than 80mm), it is usually treated with a pumping agent. Specific methods: drill two holes on both sides of the drum, extract the air from the drum with a syringe, and insert the other hole into the adhesive with a syringe, then press it hard to make it firmly bonded to the base of the ordinary waterproofing membrane. Finally in the two hole sealed with sealing material. The "bulge" of the larger diameter, the "bulge" cut off, re repair.