Page 144 - 2018 National Home Improvement
P. 144

2018 National Home Improvement Estimator, All Rights Reserved                                   Page 119



              •  Separation of counterflashing from vertical surfaces.
              •  Air gaps between the counterflashing and base flashing.
              •  Counterflashing that ends too high above the base flashing.

            Common problems with non-metallic base flashing include:
              •  Flashing that’s too thin, such as 15-pound roofing felt used where 45-pound is needed.
              •  Flashing that’s not wide enough, such as an 18" strip of felt used where 36" felt is needed.
   139   140   141   142   143   144   145   146   147   148   149