Fire rated glazing and glazing installation

Question 1

fire-rated glazing:

higher impact resistance than wire glass.
low expansion coefficient.
not all meet safety glazing req’s.

Answer 1

clear ceramic

Question 2

fire-rated glazing:

max 30 min.
cannot pass hose-stream test,
does meet impact safety standards.

Answer 2

special, tempered fire protective glass

Question 3

3-hr rating for ≤100 sqft.

Answer 3

clear ceramic

Question 4

1-hr rating for ≤1296 sqft.

Answer 4

clear ceramic

Question 5

when fire, gel foams, turning opaque.
30/60/90 min.
depending thickness / number glass panels used.
restriction on max size of lites,
and frame type.

Answer 5

2 or 3 layer tempered glass w clear polymer gel between

Question 6

traditional method of glass install

Answer 6

rabbeted frame

Question 7

held temporarily w glaziers points (small triangles of metal),
and face putty glass in place.

Answer 7

rabbeted frame

Question 8

semi-rigid, formed material,

placed between frame and the glass.

Answer 8

glazing tape

Question 9

req’d most installations.
removable pieces of framing,
allow install and easy replace.

Answer 9

glazing stops

Question 10

rigid strips of neoprene designed to hold glass.
used in concrete reglet, metal frame.
after glass inserted,
compression strip forced into slot, tightens grip on the glass.

Answer 10

structural glazing gaskets

Question 11

semirigid neoprene or other elastomeric mat’l.
prevent direct contact of glass/frame.
allow expansion of both.

Answer 11

setting blocks

Question 12

face dimension and the bite.
wind causes deflection, pulling partially out of frame.
must have sufficient bite to accomodate.

Answer 12

critical dimensions:

Question 13

glass supported top and bottom,

edges butt jointed and sealed w silicon sealant.

Answer 13

frameless glazing system:

Question 14

v + h framing are entirely interior,

glass is attached w silicon sealant.

Answer 14

structural glazing:

Question 15

3 major regulated situations for glazing

Answer 15

wind loading,

fire-rating,

hazardous locations
(human impact).

Question 16

sizing for wind loading:
thickness of glass depends size of unit and wind loading.
basics are given for float glass,
and adjustment factors type depending. ex.

Answer 16

ex. 4.00 tempered,
2. 00 heat-strengthened,
0. 75 laminated.

Question 17

two classifications for limitation in fire-rated assemblies:

Answer 17

fire-protection-rated glazing:

fire-resistance-rated glazing:

Question 18

must have 45 min rating, limited to 1-hr partitions,

or fire barriers separating occupancies/incidental use areas.

Answer 18

fire-protection-rated glazing:

Question 19

fire-protection-rated glazing:

limit __% area of common wall w/in room using the glazing.

Answer 19

25%

Question 20

fire-protection-rated glazing:

individual lights cannot exceed

Answer 20

9sqft,

or 54” in one dimension.

Question 21

fire-protection-rated glazing:

meets req’s for 45-min rating w/o specific test

Answer 21

¼” wire glass

Question 22

has been tested as part of a fire-resistance-rated wall,

according to ASTM E-119.

Answer 22

fire-resistance-rated glazing

Question 23

up to 1.5hrs, glazing must have same rating as the partition.
no size limitations.

Answer 23

fire-resistance-rated glazing

Question 24

types of safety glazing:

Answer 24

tempered or

laminated