Back to Home Presents... Plycem

An Environmentally Friendly Building Material



Plycem is a high performance substitute for plywood. What plywood does, Plycem does better. Non-combustible, Plycem is the obvious choice for high fire hazard requirements. A non-combustible roof can often mean reduced costs for fire sprinkling systems and fire insurance. Thinner sheeting can be placed behind or over drywall to increase the fire resistance rating. Recycled content is 20% (mineralized fiber).

Plycem is structural. That means it will safely span joists and rafters and serve functionally as a floor or roof deck. It can be nailed down, screwed down and glued down. Plycem will not rot or be subject to termite damage. Additionally Plycem is siliconized for increased moisture resistance..... rain on your job site should not intimidate you, Plycem will dry out just like wood will - only without the warping.

Tile can be applied directly to the surface eliminating the need for joist setbacks to adjoining areas. Plycem also has a higher shear value (about 30%) than Struc I plywood.
Visit Plycem

PRODUCT DATA:

Available in standard 4' x 8' and 4' x 10' sheets. Plycem is produced in thicknesses from 6mm to 30mm.

Span & Load Chart

PLYCEM Board Thickness

LOAD Governed By:
SPAN: Center-to-center of supports (inches)

12"

16"

24"

32"

48"

8mm (5/16")
1/360 - Limit Between Supports
1/240 - Limit Between Supports
Max Allowable Disregarding Limits

26
39
90

11
17
51

3
5
23

1
2
13

-
1
6

11mm (7/16")
1/360 - Limit Between Supports
1/240 - Limit Between Supports
Max Allowable Disregarding Limits

69
103
170

29
43
96

9
13
43

4
5
24

1
2
11

17mm (5/8")
1/360 - Limit Between Supports
1/240 - Limit Between Supports
Max Allowable Disregarding Limits

253
378
407

107
159
228

32
47
102

13
20
57

4
6
25

20mm (3/4")
1/360 - Limit Between Supports
1/240 - Limit Between Supports
Max Allowable Disregarding Limits

411
563
563

173
260
317

51
77
141

22
33
79

6
10
35

22mm (7/8")
1/360 - Limit Between Supports
1/240 - Limit Between Supports
Max Allowable Disregarding Limits

549
682
682

231
345
383

68
103
170

29
43
96

9
13
43

25mm (1")
1/360 - Limit Between Supports
1/240 - Limit Between Supports
Max Allowable Disregarding Limits

802
880
880

338
495
495

100
150
220

42
63
123

13
19
55

30mm (1-3/16")
1/360 - Limit Between Supports
1/240 - Limit Between Supports
Max Allowable Disregarding Limits

1,267
1,267
1,267

585
713
713

173
260
317

73
110
317

22
33
79

PLYCEM Weights
6mm (1/4")

1.50 psf

8mm (5/16")

2.00 psf

11mm (7/16")

2.75 psf

14mm (9/16")

3.50 psf

17mm (5/8")

4.25 psf

20mm (3/4")

5.00 psf

22mm (7/8")

5.50 psf

25mm (1")

6.25 psf

30mm (1-3/16")

7.50 psf

Physical Properties
Thermal Conductivity
(7/16" nominal thickness)
1.42
Coefficient of Linear
Thermal Expansion
(7/16" nominal thickness)

4.0 x 106

Density - Oven Dry
(7/16" nominal thickness)

7.8%

Moisture Content
(7/16" nominal thickness)

1.42
BTU - Ln/Hr F

Ph Value -25% Slurry

9.8

Water Vapor Permanence

6.60 PERMS

Linear Variation with
Change in Moisture:
Parallel to Fibers
Perpendicular to Fibers

in / ft
0.012
0.011
Mechanical Properties
Modulus of Elasticity:
Longitudinal, Dry Condition
Transverse, Wet Condition

psi
753,000
775,000

Modulus of Rupture:
Longitudinal, Dry Condition
Longitudinal, Wet Condition
Transverse, Dry Condition
Transverse,Wet Condition

psi
1,350
630
1,820
804

Shear Strength:
Dry Condition
Wet Condition

psi
1,180
1,150

Tensile Strength:
Longitudinal, Dry Condition
Longitudinal, Wet Condition
Transverse, Dry Condition
Transverse, Wet Condition

psi
551
303
690
403

Impact Strength: (Izod Method)
5/8" thickness

0.611


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