01 May 1999
(2) Flashings. Look for signs of buckling, wear, or fatigued fastening caused by inadequate
provisions for expansion. Look for corrosion caused by improper fasteners or incompatible metals.
(3) Penetrations. Look for evidence of excessive thermal movement or damage caused by
sliding snow and ice. Check the base of roof jacks (boots) for tightness.
(4) Ridges. Since low-slope metal roof panel systems generally expand towards the ridge,
check ridge for damage. Check the ends of the ridge to see if movement along the ridge is
(5) Gutters and Valleys. Remove debris; examine for corrosion and staining behind the gutter.
Check for bent-over or open seams in valleys caused by moving snow. Check eaves for gaps and tears
created by sliding snow and accumulating ice.
(6) Metal Trim. Examine for loose metal, backed out fasteners, and loss of sealant.
(7) Interior. Look for water stains or sagging insulation, which might be evidence of
condensation or leakage. Remove sagging insulation and examine back of panels for evidence of
Look for icicles or evidence of sliding snow, damaged fascia, gutter, or