The answer to 'gutter greasy' is that gutters can become greasy and dirty over time due to a buildup of debris, oils, and other contaminants. This can happen for a few common reasons, such as leaves, twigs, and other organic matter collecting in the gutters, as well as airborne grease and grime from nearby cooking, vehicles, or other sources. The grease and dirt can make the gutters look unsightly and prevent proper water drainage.
To address greasy gutters, you'll first want to thoroughly clean them out by removing any built-up debris. This may require using a gutter scoop, trowel, or other tool to dislodge and remove the gunk. You can then use a mild detergent or gutter cleaning solution and a soft-bristle brush to scrub the inside of the gutters and remove the grease and grime. If the gutters are particularly dirty, you may need to repeat this cleaning process a few times to get them fully clean. In some cases, you may want to consider calling a professional gutter cleaning service, especially if your gutters are difficult to access or you don't feel comfortable working at heights.