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Item # Minerit, Minerit-HD Fiber Reinforced Cement Composite Building Panels



Best in class exterior cladding
A smooth, natural gray fiber cement board with an even-quality surface that allows for effective staining.


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 noncombustible.

Heavy Duty is available in 4 by 8 foot and 4 by 10 foot sheets, with a standard thickness ranging from 1/4 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.

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
Properties based on 1/4" material





Specifications  · Note  · Standards & Performance  · Wind Load/Fastening Schedule

Specifications

Standard Sizes

4 x 8 ft
4 x 10
ft

Sheet Thickness

5/32 in
1/4
in
5/16
in
3/8
in

Dry Density

105 lb/ft³

Normal Moisture Content

5 %

Modulus of Rupture

CMD - 2500 psi
MD - 3200
psi

Modulus of Elasticity

1.4 x 106 psi

Tensile Strength (Parallel to Surface)

CMD - 1600 psi
MD - 2300
psi

Compressive Strength

11600 psi

Impact Strength

230 lb-ft/ft²

Water Absorption

6 to 18% (oven dry - saturation)

Thermal Conductivity

2.1 BTU-in/hr-ft²-ºF

Coefficient of Thermal Expansion (68ºF to 212ºF)

5.0 x 10-6 in/in/ºF

Moisture Movement (Oven Dry - Saturation)

0.04 in/ft

Surface Burning Characteristics (Class I)

Flame spread - 0
Smoke developed - 0

Continuous Maximum Temperature

250 ºF

Surface pH

11

Non Combustible

ASTM E 136


Note
Properties based on 1/4" material.



Standards & Performance
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) BGSI5054.
4/89 British Gypsum
Institute Fur Bautechnik Berlin Germany, October 1987
No. PA-111 4.518 for MP & HD Non-combustibility test for building materials.
Institute Fur Bautechnik Berlin Germany, October 1987
No. PA-III 2.2120 for MP & HD Surface Spread of flame test for building materials.

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.) BGSI5055 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.



Wind Load/Fastening Schedule
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.



 DOWNLOADS 

Installation on Wood
(PDF, 948KB)

Installation on Steel
(PDF, 1629KB)

Installation on Aluminum
(PDF, 1564KB)

2014 Dynamic Bonding Application
(PDF, 1326KB)

Cembrit Weathering and Durability
(PDF, 200KB)

Cutting, Drilling and Cleaning
(PDF, 2240KB)

R-TEC CI System Brochure
(PDF, 3176KB)

Minerit HD (Cembrit Construction) Data Sheet
(PDF, 86KB)

2017 FSS Cladding Brochure
(PDF, 1540KB)


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