Slate Roofing Sizes
LENGTH |
STANDARD WIDTHS |
EXPOSURE W/STD. 3" HEADLAP |
24” |
16"-14"-12" |
10 1/2" |
|
|
|
20" |
14"-12"-11"-10" |
8 1/2" |
18" |
|
|
16" |
14"-12"-11"-10"-9"-8" |
6 1/2" |
|
|
|
12" |
14"-12"-11"-10"-9"-8"-7"-6" |
4 1/2" |
Slate Roofing Weights
Standard Smooth Texture |
700 to 850 lbs.per Sqr. |
1/4” to 3/8” Rough Texture |
1000 lbs. per Sqr. |
3/8” to 1/2” Rough Texture |
1500 lbs. per Sqr. |
1/2” to 3/4” Rough Texture |
2000 lbs. per Sqr. |
3/4” to 1” Rough Texture |
3000 lbs. per Sqr. |
DEFINITIONS:
Standard Thickness: Defined as 1/4" slate
of nominal thickness, +/- 1/16". Shingles are hand-picked to be
of uniform thickness with no more than 1/8" variation in surface
face dimensions. Surface texture will be smooth with no knots and knurls.
Textural Slate: Defined as 3/16" to
3/8", or 3/8" to 1/2", or 1/2" to 3/4", or 3/4" to
1+" of nominal thickness. Thickness variations should be anticipated.
Compared to standard roofs, the textural roof is likely to have more
character due to pronounced shadow line.
Intermingled Rough Texture: Defined
as a roof with a least three distinct variations in slate thickness;
for example, slate of 1/4"–3/8", 3/8"–1/2",
1/2"–3/4" thickness used in one roof. The most pronounced
texture is achieved by using a greater percentage of the thinnest material
and a lesser percentage of the thickest material.
Graduated: Define as a roof in which
the slate diminishes in length and/or thickness as it progresses from
eave to ridge.
Staggered Butt: The use of two or
more lengths intermingled in each course for the most unique and old
world slate application.
All of our roofing products conform to ASTM
C406-00, Grade S1. |