It has come to our attention that rumors have been circulating that Minerit cement board is unavailable in North America. We are pleased to announce that Cembrit has selected American Fiber Cement Corporation as the Exclusive North American distributor of Minerit cement boards.
For your stock requirements of Minerit cement boards please contact us directly at 303-972-5103
or 800-688-8677 ext. 102.
Heavy Duty façade boards are extremely well suited to both new buildings and the renovation of old buildings. Heavy Duty is a safe construction material for façades, balconies and footings and for agricultural construction. Heavy Duty's smooth, natural gray and even-quality surface allows effective staining or painting if desired, but does not require any surface treatment.
Heavy Duty is a Finnish product that is made of clean and non-hazardous raw materials. As a Finnish product, Heavy Duty is designed to withstand wear and extreme weather conditions of the north, such as major temperature and air humidity fluctuations. In addition, Heavy Duty boards are non-combustible.
Heavy Duty is available in 4 by 8 foot and 4 by 10 foot sheets, with a standard thickness ranging from ¼ to 3/8 of an inch
Specially developed for exterior cladding, Heavy Duty (HD) is strong, durable and able to withstand extreme climatic and working conditions. Its smooth, cement gray surface provides the perfect base for a variety of finishes and composite panels.
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Standard Sizes: 5/32", 1/4", 5/16", 3/8"; 4' x 8', 4' x 10'
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Ideal for any application where the strongest cement boards in the Minerit range are required:
- Exterior Cladding
- Sports and Leisure Centers
- Agricultural Buildings
- Balconies
- Production Facilities
- Prefabricated Units
- Stairways
- Laminated Panels
- Squash Courts
- Fume Hood Liners
- Mechanical Screens
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Standards & Performance - Minerit HD Cement Boards
| ASTM E 136-81
Minerit Heavy Duty cement board Non-combustibility test for building materials.
ASTM E 136-81
Minerit Light Weight cement board Non-combustibility test for building materials.
ASTM E 136-81
Minerit Multi Purpose cement board Non-combustibility test for building materials.
BS 476: Part 23:1987
Methods for determination of the contribution of components to the fire
resistance structure. Loadbearing suspended ceiling (30 minutes) BGSI 5054.
4/89 British Gypsum
Institut Fur Bautechnik Berlin Germany, October
1987
No. PA-111 4.518 for MP & HD Non-combustibility test for building
materials.
Institut Fur Bautechnik Berlin Germany, October
1987
No. PA-III 2.2120 for MP & HD Surface Spread of flame test for building
materials.
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BS 476:
Part 21:1987
Methods for determination of the fire resistance of loadbearing elements
of constructions. Loadbearing joists floor system with a ceiling of Light
Weight board. Timber joists floor (30 min.) BGSI 5055 4/89. Timber joists
floor (60 min.)
BGSI 5047 11/88.
British Gypsum UK
BS 476: Part 22:1987
Methods for determination of
the fire resistance of non-loadbearing elements of constructions.
A fire resistance test on a non-loadbearing metal stud partition faced
with Multi Purpose or Light Weight board. 1/2-1 hour fire rating.
A fire resistance test on a non-loadbearing timber stud partition using
rock wool insulation and faced with Multi Purpose or Light Weight board.
1/2-2 hours fire rating.
Ceramic Tile Institute Approval
for Special Performance board
Uniform Building Code Approval
Department of Civil Engineering, San Jose
State University
Simulated wind load test. Minerit Heavy Duty wall panels.
All reports available upon request.
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Physical Properties - Minerit HD Cement Boards
Physical Properties
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HD
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| Density, dry, pcf |
105
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| Moisture Content, normal, % |
5
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| Modulus of Rupture, psi, MD
CMD |
3200
2500
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| Modulus of Elasticity, psi x106 |
1.4
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| Tensile Strength, psi, MD
(Parallel to surface) CMD |
2300
1600
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| Compressive Strength, psi |
11,600
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| Impact Strength, lb-ft/ft2 |
230
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| Water Absorption, %, oven dry - saturation |
6-18
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| Thermal Conductivity, BTU-in/ft2, hr, °F |
2.1
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| Coefficient of Thermal Expansion, in/in, °F, x10-6
68 °F - 212 °F |
5.0
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| Moisture Movement, in/ft
Oven dry - saturation |
.04
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| Surface Burning Characteristcs, Class I
Flame spread
Smoke developed |
0
0
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| Continuous Maximum Temperature, °F |
250
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| Non-combustible |
ASTM
E 136
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Properties based on 1/4" material
Wind Load/Fastening Schedule - Minerit HD
| Wind Load lbs/ft2 |
Board Thickness (in) |
Fastener Type |
24" O.C. |
16" O.C. |
| P |
C |
P |
P |
C |
C |
P |
| 20 |
1/4" |
Screw |
8" |
12" |
8" |
12" |
16" |
16" |
12" |
| 40 |
5/16" |
Screw |
8" |
12" |
8" |
12" |
16" |
16" |
12" |
| >40 |
3/8"
1/2" |
Screw |
Must be calculated for each system. |
Fasteners must never be positioned closer than 1/2" from the edge, or 3" from the corner of a panel.
Use stainless steel screws with 3/8" diameter washer head. Holes must be predrilled into sheet with clearance around screw threads.
Download MSDS
