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Flashcards in preformed roofing and siding Deck (18)
1

sheet metal roofing:
min slope

3:12

2

sheet metal roofing:
pros/cons

pro: durable, attractive, conform to wide variety of roof shapes.
con: $, skilled install.

3

sheet metal roofing:
standing seams

typ parallel to slope, and crimped tight.

designed to expand

4

sheet metal roofing:
flat seams

connect two pieces along the slope,

made perpendicular to standing seams, soldered.

5

sheet metal roofing:
installe over

asphalt roofing felt

on top of wood, or nailable concrete decking.

6

sheet metal roofing:
continuous cleats used at

eaves, rakes (gable ends), and flashing.

7

sheet metal roofing:
held to sheathing/decking w

w metal cleats attached and spaces 12” oc.

8

sheet metal roofing:
metals

copper, galvanized iron, aluminum, terneplate.

9

terneplate:

steel sheet coated w lead and tin.

10

terneplate req resin-sized paper underlay bc

asphalt can react w tin.

11

stainless steel sheet metal roofing:
pros/cons

$, but very durable and maintenance free.

12

copper steel sheet metal roofing:
pros/cons

pro: long life, attractive green patina.
also wide variety of necessary roofing accessories made in copper.

13

shaped metal faces w insulation,
self supporting, span intermediate supports.

preformed roof and wall panels:

14

preformed roof and wall panels:
roof panels span ______,
wall panels span ______.

purlins,

horizontal girts,

15

preformed roof and wall panels:

most simple, overlapping edges.

corrugated panels

16

preformed wall panels:

insulation between, interlocking edges + weather seal.
typ width: 24, 30, 36”.

sandwich panel

17

sandwhich panel material:

aluminum, galvanized steel, porcelain enamel steel.

18

sandwhich panel typ height:

length to match job: typ foundation to roof framing
(1 story bldg),

if 2, butt jointed w flashing between.