Normally a certain number of granules will be
loose, especially after application. These granules are called
"riders" and are a normal result of the manufacturing
process. Granule loss does not affect the service life of the
shingles unless granules can be seen missing on the surface of
the shingles, thus exposing the asphalt or Fiberglas® mat.
RECOMMENDATIONS
On aging shingles, missing granules indicate a
need for replacement.
Office
W224 N7770 Wooded Hills Dr.
Sussex, WI 53089
262-250-0889
Fax 262-250-0887
Shop
W220 N7072 Town Line Rd.
Lannon, WI 53046
414-299-9500
CAUSES
On aging shingles, missing granules indicate a
need for replacement.