Precast Concrete Wall System

From interior to exterior a precast concrete wall begins with a group of layers consisting of a ½” of gypsum wall board, a 2×4 stud wall and 2” of rigid insulation for thermal protection. This connects to a precast concrete panel through an anchor plate, bolted into the precast panel. At this point of connection two precast panels meet with backer rod and inner sealant and outer sealant for waterproofing. A concrete slab connects to precast panel by a two layers of shear connection cast into the precast panel filled with spray insulation fill. This anchored into the slab and shelf angle on the corner of the slab. Between the shelf angle and precast panel is a space for the fire safing and smoke seal to protect against fires.

CaseStudyGrid_Yocelyne_Portillo_Final_8.03

 

Composite Metal Panel Connections

A composite metal panel can be a “rain screen pressure equalized dry-joint system” meaning it serves to keep water out from penetrating into the building. It allows minimal water penetration where water that enters into the wall system is drained through weep holes. This wall system begins with typical wall of CMU or concrete with sheathing, a weather resistant barrier and insulation with a water barrier in front of it. The metal panel system is attached to the CMU or concrete wall by a attachment grit like an EC-203 with a fastener attached through the CMU or concrete. This piece spans along the CMU or concrete wall to attach the panels on it. The EC-203 is locked in with a EC-202, held together with a smaller fastener on both sides. The EC-202 wraps around the metal panels where two panels ends meet, each with a weep hole and weep baffle to drain out any water penetrated through the wall system. Another wall to keep water out is the use of backing rod and sealant in the wall system of about ½”. The metal panel is around 1-15/16” thick from water barrier to the exterior of the metal panel.

CaseStudyGrid_Yocelyne_Portillo_Final_8.03 ec-200-details

NYC Stairs Building Code

“(2) The maximum vertical rise of a single flight of
stairs between floors, between landings or platforms, or
between a floor and a landing or platform, shall not
exceed eight feet in buildings classified in occupancy
groups F and H, and twelve feet in all other occupancy
groups. No flight of stairs shall have less than two risers.”

http://www.nyc.gov/html/dob/downloads/bldgs_code/bc27s6.pdf

“1009.7

Vertical rise.
A flight of stairs sh
all not have a vertical rise greater than 12 feet (3658 mm) between floor levels or
landings.”

 

https://www1.nyc.gov/assets/buildings/apps/pdf_viewer/viewer.html?file=2014CC_BC_Chapte_10_Means_of_Egress.pdf&section=conscode_2014

 

Metal Panel Walls

WALL PANEL: A non-structural element that forms a curtain wall with loads transferred from the wall panel to a structural frame.

WALL PANEL ADVANTAGES:  The cost and maintenance is low for metal wall panels since there is possibilities for customization and availability. It is quick and easy to install and there is a small amount of scrap after it is installed. Its lifespan is from 20 to 40 years and doesn’t require as much replacement as other wall systems. They are strongly resistant to fire so insurance cost is lower for metal panels and lower cost of utility since they are insulated to resist heating and cooling. If constructed right, the metal panel seams help keep water out.  Another great benefit is its lightness compared to materials like brick. It is also sustainable and energy efficient because it can be 100% recycled and still remains strong as its original state.

COMPOSITE WALL PANELS

 

 

https://www.pac-clad.com/products/wall-panels/composite-wall-panels/

INSULATED METAL PANEL

http://fmlink.com/articles/metl-span-white-paper-lists-benefits-of-insulated-metal-panels/

https://www.pinterest.com/pin/444660163193234017/

 

http://northclad.com/products/zn/zinc-composite/details/

https://www.pinterest.com/pin/445363850624923973/

https://www.pinterest.com/pin/479140847849370601/

TRADITIONAL METAL PANEL(SECTION)

A traditional metal panel system is connected to a metal wall stud. On the exterior of this wall system is the metal panel and on the interior is a piece of gypsum board. In between these two is a layer of air permeable waterproofing. Then there is a sheathing layer and stud cavity insulated with batt insulation. Following the batt insulation and metal studs is a vapor barrier/air barrier to block off moisture from entering the wall.

http://www.philipluo.com/architecture/building/index.shtm

http://acpexpress.com/products-h-100.php

Concrete Wall (Research)

Concrete Walls can be constructed from precast concrete, poured concrete, concrete block, stucco concrete, stamped concrete and colored concrete. Precast walls can be  reinforced with steel ribs. Poured concrete walls can be used for a foundation or as a retaining wall. Concrete block walls can also be used in a foundation or as a retaining/decorative wall. Stucco walls serve more as texture. It is made of a thin concrete layer that is used over an existing wall. Stamped walls are similarly created to poured concrete walls in the way it is molded. Colored concrete walls also are created by poured concrete techniques.

https://www.pinterest.com/pin/795870565369065360/

muiling.com – concrete wall detail

 

http://www.lifeofanarchitect.com/graphic-standards-part-2/

http://www.yourhome.gov.au/materials/precast-concrete

Retaining Wall Footing Design Retaining Wall Basement Google Search Detail Pinterest Photos – Home Interior Decorating Ideas

http://www.greenbuildingadvisor.com/blogs/dept/musings/foam-under-footings

 

https://gopelling.net/precast-concrete-curtain-wall-detail/

RAIN SCREEN [Research]

What is a rain screen?

Our project site, the Dream Hotel in NYC, consists of a stainless steel rain screen. A rain screen is essential to manage moisture in a facade. A rain screen wall should include a water-resistant barrier, an air gap between the water-resistant barrier and the back of the siding, flashing at vulnerable penetration areas, and weep holes at the bottom of the wall.

 

 

 

 

Types of rain screens.

A rain screen can be a “pressure equalized system” or a “drained and vented system.” The first type of rain screen deals with external wind loads and pressure equalization within the cavity. This system minimizes force on the wall and moves moisture through the outer wall.

The second type if rain screen system requires water to be collected and drained out of the wall. Water that penetrates the outer wall is collected and directed out of the cavity by using flashing and weep holes. If the outer wall is more airtight, pressure builds up and causes water to penetrate the interior wall and can cause decay.