CONSTRUCTION WATERPROOFING HANDBOOK QUESTIONS

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1 CONSTRUCTION WATERPROOFING HANDBOOK QUESTIONS 1. Which of the following is an advantage to using clear sealers for waterproofing decks? A. It is completely waterproof B. It has crack-bridging capability C. It is for wood or metal substrates D. Ease of application 2. Silicones have excellent adhesion to almost all building products including. A. Aluminum B. Marble C. Metal 3. As much as percent of all water intrusion: problems occur within 1 percent of the total building or structure exterior surface area. A. 80 B 90 C. 100 D One or a combination of which of the following methods completes exterior cleaning? A. Water cleaning B. Brushing cleaning C. Chemical cleaning D. A & C only 5. The design for joint movement is usually based on a temperature discrepancy of. A. 80 F B. 120 F C. 130 F D. 150 F 1

2 6. A variety of other transition materials and systems are frequently used to provide complete waterproofing of the building envelope, are among these construction practices. A. Flashing B. Thresholds C. Weeps D. Drainage tubes 7. As with acrylics, coatings are generally not considered true waterproof coating. A. Asphalt B. Epoxy C. Cementitious D. Urethanes 8. About percent of waterproofing leaks are material or system failures. A. 80 B. 90 C. 99 D are the most widely used waterproofing materials. A. Sealants B. Expansion joints C. Control joints D. Isolation joints 10. The natural upward wicking motion that can draw water from ground sources up into above-grade envelope areas is called. A. Surface tension Air pressure differential C. Wind loads D. Capillary action 2

3 11. An unsuitable repellent for marble and limestone substrates is occurs if this sealer material is applied. A. Silicone B. Acrylic C. Silanes D. Siloxanes 12. Substrate cracks must be prepared before coating application, sawn out large cracks and use to fill. A. Hypalon B. Acrylic C. Urethane sealant D. Cementitious coating 13. Apply dampproofing in either installations. A. Negative B. Positive C. Positive or negative D. All of the above 14. Water vapor penetrates pores of concrete floors, causing. A. Delamination of floor surface B. Mildew C. Staining D. All of the above 15. A vapor barrier s performance is measured in. A. Permeability B. Lb/ C. Gal/mil D. Percent/mil 3

4 16. With all positive systems, concrete should cure properly up to before application of any waterproofing materials. A. 21 days B. 30 days C. 45 days D. 60 days 17. Metallic systems contain a mixture of with finely graded iron aggregate or filings. A. Water & sand B. Water & cement C. Sand & cement 18. Backer-rods should be a minimum percent larger than the joint width. A B C D For cracks experiencing active water infiltration, preferably at the base of the wall, before coating is applied to relieve pressure. A. Pack with hydraulic cement B. Seal with epoxy C. Drill relief holes in a substrate D. Clean substrate 20. Do not use penetrating sealers on. A. Brick B. Concrete C. Glazed terra cotta D. Porous stone it 4

5 21. To ensure adhesion between sealants and substrates, should be used. A. Expansion joints B. Prim C. Caulking materials D. Bond breaker tapes 22. The Application of cementitious material applied by trowel to a masonry or concrete surface for dampproofing purposes is known as parging. A. Squeegee B. Trowel C. Brush D. Spray 23. Previously painted substrates should have a duct-tape test for compatibility of the coating application. A. Cementitious B. Epoxy C. Elastomeric D. Acrylic 24. The most incorrectly used waterproofing materials are. A. Caulking B. Glazing C. Sealants 5