Poly-Mastic P-22 System


KARNAK COLD PROCESS ROOFING SPECIFICATION

2 Plies - Karnak #3036 Poly-Mat
Karnak #78AF Cold Process Cement








SURFACE PREPARATION


All surfaces should be swept clean of dust, dirt and any other foreign matter. Repair all blisters and breaks with Karnak #19AF Flashing Cement and Karnak #34 Asphalt Saturated Cotton Fabric or Karnak #31 Fiberglass Membrane.

Remove and replace all insulation which is either water soaked, soft or spongy. Mechanically fasten insulation and a minimum 43 lb. coated base sheet per manufacturer's recommendations.

APPLICATION


STEP 1: Starting at the low edge of the roof, coat the surface to which Karnak #3036 Poly-Mat is to be installed with Karnak #78AF Cold Process Cement at 2 gallons per square and then embed and brush in 18" width of Karnak #3036 Poly-Mat.

STEP 2: Coat the entire surface of the 18" width of Karnak #3036 Poly-Mat, and then 19" up the roof with Karnak #78AF Cold Process Cement at the rate of 2 gallons per 100 sq. ft. Embed and brush in a full 36" width roll of Karnak #3036 Poly-Mat that completely covers the 18" starter strip.

STEP 3: Coat the entire surface of the 36" width of Karnak #3036 Poly-Mat and then an additional 17" up the roof with Karnak #78AF Cold Process Cement at the rate of 2 gallons per 100 sq. ft.. Embed and brush in a full 36" width roll of Karnak #3036 Poly-Mat, overlapping this sheet 19" over previously applied strip.

STEP 4: Apply Karnak #78AF Cold Process Cement over entire roof deck at the rate of 3 gallons per 100 sq. ft.. All layers of Karnak #3036 Poly-Mat shall overlap the ends of the preceding sheet by 6". Adjacent and laps shall be at least 18" apart from the side lap of the preceding ply. Reinforce all valleys with an extra layer of Karnak #3036 Poly-Mat.

OPTIONS


OPTION 1: Aluminum Top-Coat
Allow top coating a minimum of 90 to 120 days curing time before applying Karnak #97 or #97AF Fibered Aluminum Roof Coating at the rate of 1 to 1 1/2 gallon per 100 sq. ft..

OPTION 2: Aluminum Top-Coat (emulsion)
Allow top coating a minimum of 7 to 14 days curing time before applying Karnak #297AF Aqua-Lum Aluminum Emulsion coating at the rate of 1 to 1 1/2 gallons per 100 sq. ft.

METHOD OF APPLICATION


Karnak #78AF Cold Process Cement may be applied by brush or spray with proper equipment.

NOTE: COLD-PROCESS SYSTEMS AND COATINGS, EITHER EMULSION OR SOLVENT BASED, SHOULD ONLY BE INSTALLED ON DECKS WITH POSITIVE DRAINAGE.

PER NRCA, (NATIONAL ROOFING CONTRACTORS ASSOCIATION) "THE CRITERIA FOR JUDGING PROPER SLOPE FOR DRAINAGE IS THAT THERE BE NO EVIDENCE OF STANDING WATER ON THE DECK 48 HOURS AFTER IT STOPS RAINING."

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Kanopy Reflective Roof Maintenance Solutions
  • Reduce Energy Use
  • Lowers Peak Energy Use, reducing energy costs year-round
  • Helps the environment, reduces "Heat Island Effect"
  • Extend the life of the roof
  • Reduces waste. Helps avoid roof tear-off.
  • Economic compared to roof replacement
  • Eliminates interior building operation disruption