specs

Section 07110
Page 2
PROPERTIES TEST METHOD RESULTS
Tensile Strength, Film ASTM D 412 4,000 PSI minimum
Tensile Strength, Membrane ASTM D 412 250 PSI minimum
Elongation, Membrane ASTM D 412 300 percent minimum
Moisture Vapor Permeance ASTM E 96, Method B 0.1 perms maximum
Puncture Resistance, ASTM E 154 40 pounds minimum
Membrane
Water Absorption, ASTM D 570 0.1 maximum
Membrane
B. Drainage Board: Three-part prefabricated geocomposite drain consisting of a formed polystyrene core covered
on one side with polypropylene filter fabric. Must be able to drain at a minimum rate of 16 gpm per foot of
width covered.
PART 3- EXECUTION
3.01 PREPARATION
A. Prepare substrate to receive waterproofing:
1. Remove protrusions flush with adjacent surface.
2. Remove loose and spalled concrete.
3. Patch holes and depressions with patching compound.
4. Clean surfaces to remove dust, loose aggregate, debris, oil, grease, and other contaminants that could
impair adhesion.
5. Prepare dynamic cracks and joints:
a. Remove loose and spalled concrete.
b. Patch holes and depressions with patching compound.
c. Rout out crack or joint to minimum dimensions of ¼ inch deep x ½ inch wide.
d. Apply sealant to prepared crack or joint as specified in Section 07920.
3.02 INSTALLATION OF WATERROOFING
A. Install waterproofing system in accordance with manufacturer’s instruction and NRCA Manual.
B. Surface Conditioner:
1. Apply to coverage rate required by manufacturer. Allow to dry until tack free.
2. Cover only that area that will be covered with membrane in same day. Re-apply if left uncovered over
24 hours.
C. Membrane:
1. Form ¾ inch fillet with liquid membrane on inside corners; extend minimum 6 inches in each direction
at 90 mils thick.
2. Cracks and joints in substrate:
a. Cover static cracks with 9 inch membrane strip.
b. Prior to covering joints between tilt wall panels, provide sealant over backer rod at joint and
allow 48 hours to cure. Provide 1 ½” backer rod over caulked joint and apply 18” wide
membrane strip centered on the joint. Truncate top of backer rod at an angle below the
sidewalk.
3. Cover inside and outside corners with minimum 12 inch wide membrane centered over corner.
4. Apply membrane with minimum 2 ½ inch side and end laps; roll surface to eliminate wrinkles and air
spaces.
5. Terminate top edge of membrane at grade with metal reglet.
6. Terminate bottom edge of membrane within 1 inch of bottom of wall; seal edge with trowel bead of
mastic.
7. Provide double membrane layer minimum 6 inches around penetrations; seal with mastic.
NAPA CENTURY CENTER XD 12
#165582