The answer to 'why is my underlayment clogged gutters' is that a clogged gutter can cause water buildup that seeps under the roof underlayment. This can lead to water damage, mold growth, and even structural issues. Common causes include leaves, twigs, and debris accumulating in the gutters, preventing proper drainage.
Some key signs of a clogged underlayment include water stains on the ceiling, mold growth, and rotting wood in the attic or along the roofline. To fix this, you'll need to first clear out the clogged gutters, then inspect the underlayment for any damage. Replacing damaged sections of underlayment may be necessary. Calling a professional roofer is recommended if the issue is widespread or requires extensive repairs.