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EPDM ROOFING:  MOLDED INSIDE CORNERS

Molded Inside Corners should be used where inside corners are permanently exposed, or where additional flashing must be applied above. We pre-apply seam tape to the horizontal flanges which extend 5” onto the roof and to the vertical flanges which extend 8” up the walls. Follow the first eight steps for Folded Inside Corners before beginning the procedures shown here. Position the corners carefully and work slowly to avoid creating gaps at the intersections of the roof and walls.

 

cut off ear

STEP 1:  Cut off the “ear” close to
the corner with a sharp utility knife.

 

 

clean base

STEP 2:  Clean all surfaces with
toluene, naptha, or white gasoline.

 

 

expose tape

STEP 3:  Peel back the protection paper
to expose the tape at the bottom corner.

 

 

spot corner

STEP 4:  Holding the corner firmly in
place, press to tack the corner to the roof.

 

 

peel left base

STEP 5:  Reach under and pull the
protection paper towards the wall.

 

 

peel left wall

STEP 6:  Press the molded corner firmly
into the roof corner and continue pulling.

 

 

peel right base

STEP 7:  Reach under and pull the
protection paper towards the wall.

 

 

peel right wall

STEP 8:  Press the molded corner firmly
into the roof corner and continue pulling.

 

 

roll base

STEP 9:  Roll the base firmly,
especially at the roof corners.

 

 

roll walls

STEP 10:  Roll the walls firmly,
especially at the roof corners.

 

 

clean surfaces

STEP 11:  Clean the edges with
toluene, naptha, or white gasoline.

 

caulk

STEP 12:  Caulk around the molded
corner with Silicone Caulk for EPDM

 

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