NCMA TEK

← Back to document page

TEK 19-4A 2008 National Concrete Masonry Association (replaces TEK 19-4) ncma TEKNational Concrete Masonry Associationan information series from the national authority on concrete masonry technologyFLASHING STRATEGIES FOR CONCRETE MASONRY WALLSTEK 19-4AWater Penetration Resistance (2008)Keywords: fl ashing, fl ashing materials, maintenance, mois-ture, vents, wall drainage, water resistance, weep holesoC), water vapor can accumulate on a cold surface and form frost or increase the quantity of ice within the masonry. Although it is commonly thought that moisture problems stem only from the external environment, this is not always the case.

Available as clear and opaque compounds, the effectiveness of surface treatments depends on their composition and compatibility with the masonry.

  Ncma tek, Ncma