Tools you will need:

1. Can of FlexSeal spray (we use clear color)
2. Firm bristle brush (to break up dirt and debris from seams before sealing)
3. Damp microfiber (to do a basic wipe down of seam areas before sealing)
4. Painter’s tool (to scrape loose bits of old caulk from seams, as needed)

How to do it:

1. Thoroughly clean the entire tray run prior to sealing any seams, including downspouts
2. Remove as much loose debris and standing water from the seam area as possible
3. Scrape away any loose, cracked caulk from the seam area, as needed
4. Apply several thin coats of FlexSeal spray to the seam, overlapping be a few inches on each side (remember to shake the can well before spraying)
5. Make sure to feather the edges of your spray area (thinner coat at the ends, thicker in the middle)
6. The product will cure within a 24 hours and create a watertight seal