ARCC 3202 Lecture Notes - Lecture 12: Wood Veneer, Sulfur Dioxide, Energuide
19 Jan 2016
School
Department
Course
Professor
Document Summary
R8- very high performance--- normally the windows are r2. Heat transfer mechanisms: radiation, conduction, convection, air leakage, countered by low e" coating, countered by inserting spacers, countered by gas fills, compressible gaskets. Glazing: glass, annealed (an, heat treated, coatings, heat strengthened (hs, fully tempered (ft, laminated (lg, low e" emissivity, controls long wave radiation (infrared, controls short wave radiation (uv, types, soft, lower e value, more durable. Single/double awning (most traditional window, only bottom half slides up) double line shows that it can slide up or down arrows show direction dashed line points to hinge and direction of opening. 30 degree (don"t perform well: more expansion, lower maintenance, highly conductive therefore thermal breaks are designed into the frame. Aluminum: highly conductive therefore thermal breaks are designed into the frame, isoweb kawneer. Composites: pvc + saw dust, wood veneer. Shgc =1. 0: 0. 30, low e on north side. U value reverse of r value (resistance of heat flow)
