Atlas Fascia Stains: Check Cement and Edge Details
Bulletin date: not stated in source
Atlas discusses dark runoff associated with certain roofing cements and incompatible materials. Drip-edge shape, shingle overhang and drainage affect where residue lands
Atlas technical bulletin: Fascia Staining - Plastic Cement.
What this means for your roof
Atlas discusses dark runoff associated with certain roofing cements and incompatible materials. Drip-edge shape, shingle overhang and drainage affect where residue lands. This condition is distinct from other brown roof residues, so the source should be identified before blaming the shingles or choosing a cleaning method.
A useful question for your contractor
Is the stain coming from roofing cement, and are the roof-edge details directing runoff correctly?
Ask for the answer to be tied to the actual roof condition and the exact product being installed. Keep the agreed repair or installation detail with your estimate and project photos.
Bulletin dated: not stated in source. The date shown identifies the manufacturer document used for this summary.
Read Atlas: Fascia Staining - Plastic Cement
This homeowner summary explains the cited bulletin. The complete manufacturer document and current product instructions govern the installation details. A requirement for one manufacturer or product should not be transferred to another without checking.