Quantcast Moisture Survey Instructions for Built-Up Roofs

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ROOFING
Trusses-Continued
need of protective treatment. If removal of dirt piles is
impracticable, wood in direct contact with, or less than 8 inches
from ground level should be given protective treatment
STEEL
n  From Ground:
twisted
bowed
deformed
broken members
n From Truss:
loose bolts
rivets
defective welds
n From Truss: rupture, shearing, or crushing of steel plates, members,
bolts, and rivets:
8.2.6 Moisture Survey Instructions for Built-Up Roofs: Partial or total built-up
roof replacement recommendations can be made using moisture survey results. NAV-
FAC prefers a moisture survey to be completed before any built-up roof is replaced.
n Mark out a grid on the roof:
n Using the nuclear moisture detector test and record the moisture level at
each marked point:
n Map out the grid and test results:
n Draw conclusions and make recommendations from the test results:
n Prepare cost estimates based on your recommendations:
8.3 REPAIR/REPLACEMENT CRITERIA:
8.3.1 Asphalt strip shingles:
n Repair:
Uniform and flat shingles
Ample minerals
Pliable
8-7





 


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