Item 7A Applicant's presentation TDDC Facade Revision ProposalTDDC ASC
JUNE 20, 2017
CORGAN
CORGAN
HW 26 / IRA E. WOODS AVE
HW 114
E. SOUTHLAKE BLVD
S. KIMBALL AVE
SILICON CT.
NOLEN DR.
AIRPORT COMPATIBLE LAND USE ZONING ORDINANCE 479
PERMIT REQUIRED ACOUSTICS STUDY
AIRPORT COMPATIBLE LAND USE ZONING ORDINANCE NO. 479
Ldn 75 noise contour
35 dB of noise reduction must be provided by the building shell
Original design (all glass façade) does not
meet noise requirements @ 29 Db
6 dB difference = 1.5x louder
ORDINANCE NO. 479 NOISE CONTOUR
THE ANALYSIS PROCESS RESULTING IN PROPOSED ENVELOPE CHANGES
INVESTIGATION AND ANALYSIS
Goal to resolve issues with the least amount of visual impact to the exterior
Contracted an acoustician to analyze the outdoor-to-indoor noise transmission
Investigated envelop interventions
Investig
ated alternative ceiling materials
Investigated alternative glazing systems
CONCLUSIONS | RECOMMENDATIONS
Recommendation of sandwiching roofing insulation between two Densdeck boards
Recommendation to add additional R-15 insulation over ceilings
Recommendation to use acoustical doors in
specific areas
CONCLUSIONS | RECOMMENDATIONS
Reception/ Waiting Area
Recommendation of previous interventions
Recommendation to upgrade glazing within the waiting area to insulating double laminated glass with a specific type of
interlayer material
Found we have to reduce the amount of glazing within the waiting area to comply with Ord. 479
PROPOSED WAITING AREA FACADE CHANGES
ORIGINAL DESIGN
PROPOSED DESIGN
ORIGINAL CITY SUBMISSION
REVISED CITY SUBMISSION
WHAT WOULD THESE REVISIONS LOOK LIKE?
PROPOSED DESIGN
PROPOSED DESIGN
[VIEW FROM THE RECEPTION DESK]
ORIGINAL DESIGN REVISED TO MEET REGULATIONS
[VIEW FROM THE RECEPTION DESK]
PROPOSED PARAPET REVISIONS
PROPOSED PARAPET REVISIONS
Due to grading considerations adjacent to saved trees, the finish floor elevation raised
Some parapets and screen walls designed to shield views of rooftop units are not needed
One parapet
needs to raise
ROOF PLAN
ORIGINAL CITY SUBMISSION
REVISED CITY SUBMISSION
ORIGINAL SUBMITTED RENDERING
PROPOSED DESIGN RENDERING
Approach video
THANK YOU