Fire rated glazing and glazing installation Flashcards Preview

BD_Ballast > Fire rated glazing and glazing installation > Flashcards

Flashcards in Fire rated glazing and glazing installation Deck (24)
1

fire-rated glazing:

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

clear ceramic

2

fire-rated glazing:

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

special, tempered fire protective glass

3

3-hr rating for ≤100 sqft.

clear ceramic

4

1-hr rating for ≤1296 sqft.

clear ceramic

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.

2 or 3 layer tempered glass w clear polymer gel between

6

traditional method of glass install

rabbeted frame

7

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

rabbeted frame

8

semi-rigid, formed material,
placed between frame and the glass.

glazing tape

9

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

glazing stops

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.

structural glazing gaskets

11

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

setting blocks

12

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

critical dimensions:

13

glass supported top and bottom,
edges butt jointed and sealed w silicon sealant.

frameless glazing system:

14

v + h framing are entirely interior,
glass is attached w silicon sealant.

structural glazing:

15

3 major regulated situations for glazing

wind loading,

fire-rating,

hazardous locations
(human impact).

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.

ex. 4.00 tempered,

2.00 heat-strengthened,

0.75 laminated.

17

two classifications for limitation in fire-rated assemblies:

fire-protection-rated glazing:

fire-resistance-rated glazing:

18

must have 45 min rating, limited to 1-hr partitions,
or fire barriers separating occupancies/incidental use areas.

fire-protection-rated glazing:

19

fire-protection-rated glazing:
limit __% area of common wall w/in room using the glazing.

25%

20

fire-protection-rated glazing:

individual lights cannot exceed

9sqft,

or 54” in one dimension.

21

fire-protection-rated glazing:

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

¼” wire glass

22

has been tested as part of a fire-resistance-rated wall,
according to ASTM E-119.

fire-resistance-rated glazing

23

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

fire-resistance-rated glazing

24

types of safety glazing:

tempered or

laminated