Ch. 6 Alternative and Evolving Construction Trends

Question 1

Previously, buildings used a ___________approach, but now use a ________ approach

Answer 1

Prescriptive

Performance design

Question 2

Lightweight steel advantages: (5)

Answer 2

Reduced costs
Significant weight reduction
Ease of installation
Resistant to termites and mold
Non combustible to help satisfy codes

Question 3

How thick is the steel used in LW steel construction?

Answer 3

1/8”

Question 4

Components of a LW steel bldg:

Answer 4

C channel, H channel, sills, headers and joists

Question 5

LW steel bldgs will get its strength from

Answer 5

The sheathing, usually OSB

Question 6

Primary collapse concern for a LW steel bldg?

Answer 6

Floor collapse from a basement fire

Question 7

Materials for ICF forms”

Answer 7

Cellular concrete
Cement bonded polystyrene beads
Cement bonded wood fiber (15%cement, 85%EPS)
Combo of 15%cement and 85% wood chips

Question 8

3 ways to build and ICF wall

Answer 8

Flat panel
Post and Beam
Grid block

Question 9

Flat panel ICF:

Answer 9

Most concrete and fire resistant
Low slump high aggregate concrete
Plastic or metal plates
80/20 concrete/EPS

Question 10

Post and Beam ICF

Answer 10

40-60% concrete

Creates a P and B skeleton with some rebar

Question 11

Grid Block

Answer 11

Legos with concrete in the middle
Least fire resistive
Least amount of concrete 20-30%

Question 12

Fire concern for ICF

Answer 12

Though it’s supposed to not flame up, it will burn from fire around, causing pyrolization of EPS which is a petroleum product

Question 13

Collapse concern for ICF

Answer 13

roof and floors,

Flat panel will hold longer than P and B and Lego blocks

Question 14

What causes the strength in SIP panels

Answer 14

The synergy of being pressure laminated

Question 15

2 types of straw bale buildings

Answer 15

Load bearing-Nebraska style

Non load bearing

Question 16

How are straw bale buildings pinned together

Answer 16

Wire ties
Wood-bamboo
Sticks
Rebar

Question 17

Two ways to compress a Straw bale bldg

Answer 17

Just the weight of the roof

Compression straps

Question 18

Collapse threat of straw bale bldg

Answer 18

LW roof, especially Live roofs due to the load

Question 19

Advantages of straw clay bldg

Answer 19

Durable
Cost effective
No special tools
Green
Good insulating 
Resistant to vermin, rot and fire

Question 20

What’s the biggest fire concern for a clay straw bldg?

Answer 20

Contents

Roof and and ceiling collapse is possible

Question 21

How much money has the ARRA allocated to Green building?

Answer 21

80 Billion fucking dollars

Question 22

Challenges of Green Building and firefighting

Answer 22

Alternative power
Unusual dead and live loads
Low mass synthetics
Recycled or repurposed materials

Question 23

Green building, like rammed earth brick, are efficient but can retain heat and products of combustion leading to

Answer 23

Flashover

Question 24

How far apart are the parallel studs in double wall construction

Answer 24

3 1/2”

R value of or more

Gap allows horizontal extension of fire

Question 25

When RSB sheathing is used for walls its applied with the foil side___________for roofs its_________

Answer 25

Out, inward

With 3/4” air space

Question 26

Soil depth of extensive live roof

Of intensive live roof

Answer 26

2-4”, limited maintenance

1 foot, regular maintenance

Question 27

4 elements of a live green roof

Answer 27

A building with strong roof system
Multiple membrane to protect the structure from water and drainage
A layer of soil
Planted veggies

Question 28

Electrochromic Windows

Answer 28

Require 1 volt to change the amount of light reflected, but they are harder to break

Question 29

How is AFM/OVE Green?

Answer 29

Reduced the amount of lumber waste

Reduces thermal bridging

Question 30

Spacing for studs in AFM

Answer 30

19.5”-24” instead of 16”

Single 2x4 for top plate

Nailing boards for exterior siding are 2 X 2

Question 31

How much less lumber does AFM use? Reduction in framing factor?

Answer 31

10 - 30%

15%- 25%

Question 32

What is AAC

Answer 32

Auto claved Aerated Concrete
Made from Portland cement, gypsum, water, expanding agents and air
1/5th of wt of CMU
Mostly air

Question 33

Other names for EWP

Answer 33

Manufactured board
Man made wood
Composite wood

Question 34

How much more weight can an FiRP carry over a regular beam?

Answer 34

Twice as much

Question 35

Homes are designed to give the occupants how long to get out?

Answer 35

15 minutes