HC-Lecture33-Special-Claddings

HC-Lecture33-Special-Claddings - Heavy Construction Heavy...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Heavy Construction Heavy Construction Lecture Lecture #33 #33 Special Claddings Luis Prieto-Portar, 2009 Notice all the different forms of cladding (covers) that the Designer has specified for this office building. Consider all the possible points of moisture entry and loss of HVAC. Primary functions of cladding. 1) Keep the water out of the building (from gravity, wind driven and air pressure); 2) Preventing air leakage (minimize the expenses of the HVAC system); 3) Controlling the passage of light (especially sunlight); 4) Controlling the radiation of heat (maintain an acceptable interior surface temperature that is comfortable for occupants); 5) Controlling the conduction of heat; 6) Avoid thermal bridges (eg, between the external metal studs and the exterior walls); and 7) Controlling sound from the outside. econdary functions of cladding. Secondary functions of cladding. 8) Resisting structural movements from wind forces, earthquakes, creep, etc.; 9) Controlling the passage of water vapor; 10) Adjust to movement in the building; 11) Adjust to thermal expansions and contractions within the cladding system due to temperature differentials between the inside and the outside; 12) Adjust to differences between the cladding system and the structural frame; 13) Resist fire; and 14) Weather gracefully (without streaking, oxidation, corrosion, freeze-thaw spalling). Installation requirements for cladding. 1) Should be easy to install with attachment tolerances, 2) Have adequate dimensional clearances, and 3) Provide a back-up with a secondary system. Conditions required for water penetration. 1) Cladding surfaces are exposed to water, which is the case in all except small buildings with overhangs; 2) The cladding system must have some openings. Cladding should be designed without any openings, essentially as barrier wall. This is difficult to achieve because the sealed joints must be perfect. This also implies precise and consistent field sealed joints must be perfect....
View Full Document

This note was uploaded on 09/15/2011 for the course CCE 4001 taught by Professor Staff during the Spring '08 term at FIU.

Page1 / 19

HC-Lecture33-Special-Claddings - Heavy Construction Heavy...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online