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Friday, March 07, 2014

Building of a Different Color (March 7)

UAS FH Construction Update for 3/7/2014

Building of a Different Color

The UAS Freshman Residence hall changed color this week as the Contractor installed a black waterproof membrane over the top of the plywood sheathing.  If you are into aesthetics, the plywood sheathing had a warm and earth friendly feel.  Many would not mind that warm wood look as a final building exterior.  Now us Engineering types would be happy to leave the final building exterior this great black waterproof membrane. 

Installing Black Waterproof Membrane


Black Membrane 4
Black Membrane 4

The black membrane is composed of two waterproofing materials—an aggressive rubberized asphalt adhesive backed by a layer of high density cross laminated polyethylene. This black membrane is 40 mills thick, has an adhesion force of 3.0 lbs/sq-in and a Permeance  of only 0.05 Perms (2.9 ng/m2s Pa).  There are not many materials available that when tested in accordance with ASTM E96 that can meet this requirement.  This black waterproof membrane is great stuff and provides all the protection that this building will ever need.  I wonder if the Architect will let me leave the building this way?


UAS Freshman Residence Hall  Black Waterproof  Membrane

Black Membrane 1
Black Membrane 1


If not, the building will change color three more times in the coming weeks until we get to the final colors selected by the Architects.  To see those colors take a look at the UAS Freshman Housing website at


South Side of Building


Black Membrane 2
Black Membrane 2



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