Daily Quiz (8)


True or false: Shop-fabricated insulation blocks installed on the roof of New York City’s Madison Square Garden last year for a waterproofing project exceeded 18 inches in thickness.


True or false: While there are laboratory tests for determining the wind-driven rain resistance of masonry walls, there are no practical field tests.


True or false: For porous masonry such as common brick, use of a non-breathable coating is a good choice.


What organization offers a certification in moisture testing of concrete slabs?


True or false: Negative-side waterproofing applied to dry interior surfaces has to have some water-vapor permeability.


True or false: Film-forming coating systems on exterior masonry or concrete walls should not have any moisture vapor permeability.


Which of the following product types is a water-repellant for masonry and concrete that penetrates pores, is breathable, and does not change the appearance of the substrate to which it is applied?


True or false: Clear penetrating water repellents typically have a large influence on the vapor permeance of a masonry substrate.


 
 
   

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