EpoxyFlex Roof Coating System Over Polyurethane Foam Insulation

PREPARATION

1. The coating surface shall be completely dry, clean (clear of dirt, oxidized or discolored foam, oils, rock, soap, or any substance or circumstance that may impede adhesion), structurally sound and water tight.

2. All wet areas, surface or subsurface, shall be completely dry before any coating application.

3. All oxidized and/or discolored foam, bubbles, un-adhered materials, and other abnormalities as may exist shall be removed or repaired prior to any application of additional foam or coating.

4. All foam surfaces shall be in an uninterrupted and contiguous flow. To correct any imperfections and/or to assure a proper surface:

4.A. Fill all low areas with foam to achieve proper drainage. Foam application should compliment roof drainage design so as to minimize water accumulation.

4.B. Apply foam in a multi-lift, three quarter inch (3/4") thick layer application. Applied thickness tolerances of each layer shall be no less than, plus or minus (+/-) onequarter inch (1/4"). Under no circumstances shall the application of a flash pass be less than one-half inch (1/2") thick in a finished surface layer.

4.C. Apply foam a minimum of six inches (6") vertically above the foam deck on all walls, around pipes, and all other protrusions from the deck as may exist to form a cantilevered surface.

4.C.1. Where obstacles do not allow a six-inch (6") vertical rise application, treat the subject area with sufficient foam so as to make the resultant finished surface smoothly flow in a contiguous line into the adjacent foam surface.

4.C.2. Finished surfaces shall be void of alligating, cracks, crevices, fissures, pinholes, and all else as would create an un-smooth or non-monolithic plane. By way of explanation: an excessively un-smooth or rough surface is herein referenced as