Site Analysis & Programming Flashcards
Environmental report
(2) phases.
phase 1 - site walk/visual inspection. will rec’ if testing is needed. will research region and provide executive summary
phase 2 - perform rec’ tests (ie. soil borings)
LCCA
life cycle cost assessment (cost impact only)
LCA
life cycle assessment (environmental analysis + cost)
method of evaluating environmental impact of using one product
Septic system
individulaized waste water system (can be for single house or for development)
2 parts - septic tank + leachfield
3 layers in septic system
scum (no action)
efluent (released into leachfield)
sludge (will build up and needs to be pumped)
PUD
Planned unit development, each large parcel of land is designed to have multiple uses. has variety of lot sizes & densities
USGS
maintains maps that show flood plains
albedo
aka solar reflectance (SR)
fraction of radiant energy on surface that is reflected. expressed as 0-1
flat/black, absorbs all energy: 0 (ie. grass, natural items)
mirror, reflects all energy: 1 (ie. pavement, snow)
reflectivity
term by LEED. used to measure solar heat rejection on non-roof surfaces. 0-1
emissivity
ability of surface to emit stored energy (aka thermal emittance) 0-1
solar reflectance index (sri)
measure of a roof’s ability to reject solar heat
standard black surface = 0 SRI
standard white surface = 100 SRI
LCA (4) steps
- define goals + scope of study
- perform inventory anaylsis (determine inputs/outputs of product)
- perform impact assessment (examines processes identified in step 2 + impact on environ)
- perform improvement analysis and report the results of the study
4 main stages of product’s life cycle
raw material acquisition, manufacturing, use in building, disposal/reuse
environmental product declaration (EPD)
standardized report of product’s environmental impact throughout life cycle
Bearing capacity testing
- borehole test - standard penetration test (SPT), measure of density of granular soils & consistency of clays. recording in boring log, blows by hammer.
- test pits - dig trenches & visual inspection of soil strata. usually limitted to 10’ depth