EPS Structurewall & Curtainwall Product Data No. C-2.3

General Description

Structurewall, Curtainwall and Woodclad stress skin panels manufactured by Winter Panel Corp. with expanded polystyrene (EPS) cores offer value through high quality, dependable performance and competitive prices. EPS is a closed cell foam which is both resilient and lightweight, providing a typical R-value of 3.75 per inch at a mean temperature of 75 degrees Fahrenheit at a manufactured nominal density of 1 pound per cubic foot. Expanded polystyrene has a successful history of efficient use in industrial, commercial and residential buildings.

Product Description
CURTAINWALL PANELS: An outer skin of APA-rated Exposure 1-7/16" oriented strand board and an inner skin of gypsum drywall ½" blueboard type suitable for tape and paint or plaster skim coat, adhered to an expanded polystyrene core.

STRUCTUREWALL PANELS: An outer and inner skin of APA-rated Exposure 1-7/16" oriented strand board adhered to an expanded polystyrene core.

WOODCLAD PANELS: An outer and inner skin of APA-rated Exposure 1-7/16" oriented strand board adhered to an expanded polystyrene core, with a pre-applied interior finish of #2 or better pine with a maximum moisture content of 19%, tongue and groove with exposed V-groove on the finished surface, approximately ¾" actual thickness and 6-7/8" actual exposed width, 7 boards per panel.

PHYSICAL PROPERTIES

Expanded polystyrene cores will be Type I with the following characteristics as determined by ASTM C-578-87:

Density:	.95 pounds per cubic foot minimum.
Flexural:	25 pounds per square inch minimum.
Thermal:	R-value of 3.75 minimum per inch at 75degrees Fahrenheit.
Dimensional:	Length ± 1/32" Width ± 1/16" Thickness ± 1/16" Square within 1/16" of width or length.
Flame Spread:	Less than 25 (ASTM E-84)
Smoke:	Less than 450 (ASTM E-84)

Adhesives for bonding the skins to the cores will be Ashland Isolet, a two-part thermosetting system that forms a water-resistant, heat-resistant, and chemical-resistant bond at ambient temperatures.

DIMENSIONS:

Panel Type
Curtainwall
Curtainwall
Curtainwall
Curtainwall
Structurewall
Structurewall
Structurewall
Structurewall

Thickness
4-9/16"
6-9/16"
8-5/16"
10-5/16"
4½"
6½"
8¼"
10¼"

Weight (PSF)
3.75
3.91
4.06
4.21
3.50
3.66
3.81
3.96

R-Value
15
23
29
37
15
23
29
37

Note: All standard thicknesses are available in standard lengths of 8', 9', 10', 12', 14', 16' in 4' wide for Blueboard and Woodclad. Standard lengths for Structural are 8', 9', 10', 12', 14', 16', 18', 20', 22', 24' in widths of 4' or 8'. Woodclad panels add ¾" thickness, 1.6 PSF of weight and I-R to the above values.

Allowable Transverse Loading Curtainwall Panel Pounds/square foot at L/240 deflection. Spans to right of line (7'-10') for wall use only.
Span	2'	3'	4'	5'	6'	7'	8'	9'	10'
3½" Core	81.1	52.1	37.3	28.2	22.0	17.5	14.2	11.6	9.6
4½" Core	103.1	65.9	46.7	34.9	26.9	21.2	17.0	13.8	11.3

Allowable Transverse Loading — Structural Panel Pounds/square foot, deflection, as shown, 3½" Core / 4½" Core
Span 3½" Core	L/180	L/240	L/360	L/480
4'	103	102	68	51
5'	83	77	51	38
6'	69	60	40	30
7'	55	46	30	23
8'	47	37	24	18
9'	39	30	19	15
10'	32	25	16	12
11'	27	21	13	10
12'	23	17	11	9

Combined Wall Loading 3½" Core Structural Panel
Axial and Transverse

Span Wind load (PSF)

5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0

8' 2959 2407 1984 1627 1313 1029 767 524 296 80

9' 2825 2218 1752 1359 1013 700 413 145

10' 2680 2013 1502 1070 690 347

11' 2529 1800 1240 768 352

12' 2196 1460 895 419

13' 1741 1060 538 97

14' 1385 749 262

15' 1101 504

16' 871 307