ARYLIC ROOFING: PREPARING A CONCRETE ROOF

The following procedures apply to pre-cast or cast-in-place concrete, either coated or uncoated, but could be used with unglazed concrete tiles used for floors and roofs. Since concrete roof decks are frequently dead-flat, check carefully for the presence of ponding and fill as needed. If the weather is hot, priming is essential, but it is also essential to observe minimum curing times specified for any concrete repair materials before priming.

scrub with detergent

STEP 1: Scrub the roof with a detergent solution.

pressure wash

STEP 2: Pressure-wash with a generous amount
of water to remove all traces of the detergent.

scrape residue

STEP 3: Scrape any residue, such as thick
accumulations of asphalt patching compounds.

patch

STEP 4: Fill defects and low areas with concrete
repair compounds with bond-enhancing additives.

grind crack

STEP 5: Grind out cracks to at least
1/4" width and vacuum the dust.

caulk cracks

STEP 6: Caulk all cracks and
transitions and tool the caulk flat.

prime

STEP 7: Seal and prime the roof with
Conservation Technology Concrete Primer.

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