How to Remove Tar Scuffs from Metal Siding

Table of Contents:

You Will Need
Steps to Remove the Tar
Additional Tips and Advice

Katherine asked: How do I remove tar scuffs from shingles on my steel siding? The roofing crew dropped the old shingles down the sides of my home that is sided with Rollex Steel siding. This left huge black marks all over my house.

Tar can be removed from metal with a few simple steps. The main caution to take is if there is paint or color added to the siding. Some products that can be used to remove tar, will also remove the paint. Always test a small area first to ensure the results are all desirable. Then, you’re ready to tackle the series of scuffs.

You Will Need:

Lubricant to loosen the tar (pick one):
- WD-40
- Gasoline/diesel
- Mayonnaise
- Commercial tar removers (available in the automotive department)
Soft cloths (terry cloth works well)
Bucket
Water
Soap
Hose (optional)

Steps to Remove the Tar:

After a test area has shown no adverse effects, apply the chosen product or lubricant to the tar.
Allow it to sit for several minutes to soak into the tar and loosen it from the surface.
Next, wipe the area with a soft cloth to remove the tar.
Reapply the lubricant as needed until the tar is completely removed.
After the tar is off, it will be necessary to clean the area well to remove any remaining lubricant before moving on to the next tar stain.
Fill a bucket with soap and water.
Wash the entire area well with the soapy water and a soft cloth.
Rinse completely with water.
Dry the area with a soft cloth or allow it to air dry.

Additional Tips and Advice

Of course, when it was caused by a contractor, it may be worth it to contact them to clean up/repair the damage caused by their work.
Do not allow the products used for tar removal to set or dry on the siding. They will eventually eat through the protective coating and cause weak and/or faded areas.