Vol 2 - Garney Construction

PART 3EXECUTION3.01 EXAMINATION AND PREPARATIONA. Verify that surfaces are solid, dry, and free of dirt, efflorescence, oil, wax,frozen matter, loose particles, cracks, pits, laitance, curing compounds, andother foreign matter that would block absorption of water repellent.B. Verify that curing of sealants is complete.C. Clean masonry surfaces to make them acceptable for application.D. Protect and mask adjacent surfaces during application.3.02 APPLICATIONA. Follow product manufacturer’s instructions and recommendations, includingapplication apparatus and techniques, and coverage rates.1. Apply two coats.B. Provide uniform coverage over entire surface of face brick on exterior andunpainted interior concrete or CMU walls, columns and similar surfaces..3.03 FIELD QUALITY CONTROLA. Notify Engineer 48 hours prior to application.B. After water repellent has dried (24 hours, low humidity, medium temperature(70 to 90 degrees F) and 48 hours, high humidity, low temperature (50 to69 degrees F), test surfaces with a water spray. Recoat areas that indicatewater absorption.3.04 CLEANINGA. At completion, remove from the jobsite excess material, debris, and waste.Dispose of water repellent containers according to state and localenvironmental regulations.B. Upon completion of Work, clean window glass and other splattered surfaces.PW/WBG/382059WATER REPELLENTSAUGUST 15, 2012 07 19 00 - 3©COPYRIGHT 2012 CH2M HILL