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Flashcards in Membrane Roofing Deck (10)
1

applied in thin sheets to nearly flat roofs,
or liquid applied to any slope roof.

membrane roofing

2

term for:

standing water = deflection, = > water, > deflection, until fail.

ponding

3

overlapping layers of bituminous (asphalt/coal-tar pitch) saturated felts,
cemented w roofing cements.
installed over nailable/non-nailable decks.

built-up roofing:

4

built-up roofing:
process

base sheet (unsaturated felt) nailed to deck,

coating of roofing cement,

3-5 layers saturated felts on top,

each w layer bitumen between,

so felt not touching felt.

5

built-up roofing:
# of layers

based on guarantee period desired,
and type of deck used.

6

built-up roofing:
coveed w

gravel/ crushed slag

(sun/weather protection)

7

scuppers: aka

overflow drains

8

second means of drainage, if primary clogged.
placed just slightly above top of roof.
used if surrounded by parapet, or nowhere for water to escape.

scuppers

9

continuous triangular block, supports flashing

cant strips

10

metal enclosure surrounds an object projected through roof,
filled w bituminous mat’l.

pitch pan

*often leaks, so cant strips/flashing are better option