Daily Quiz (11)


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


True or false: It is possible to predict the risk of moisture-related, single-wythe CMU wall problems based on the initial selection of the coating and number of prior repaints.


True or false: SSPC has a performance standard for elastomeric coatings on masonry and concrete.


True or false: Non-film-forming coatings used as sealers on concrete and masonry can be pigmented to alter the appearance properties of substrates.


What organization is developing a pinhole standard for concrete and masonry coatings?


True or false: An exterior masonry wall has a limit to how many times it can be repainted without removal of existing coating layers.


True or false: Elastomeric coatings applied directly to masonry surfaces are effective in penetrating cracks and bugholes.


A crust of soluble salts, commonly white, deposited on the exterior of masonry facades, such as brick, is called what?


True or false: Clear, non-film forming masonry sealers, such as silanes and siloxanes, have a substantial effect on vapor permeability, thereby limiting the ability of water vapor to exist in the masonry.


True or false: SSPC/NACE surface preparation specifications for masonry surfaces explicitly define acceptance criteria.


True or False: Clear, penetrating silane and siloxane sealers have a strongly limiting effect on the ability of water vapor to exit concrete and masonry.


 
 
   

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