6mm Cembrit HD (Heavy Duty) Construction Building Board is an A2-s2, d0 fire rated high-density base board comprising cement, cellulose and mineral fillers, used as a rainscreen cladding building board for external applications.

This versatile multi-use Cembrit HD boards can be used as partitioning and are popular in offsite and SIPS construction as well as internal applications, sheets can be left exposed without additional treatment.

Cembrit HD Construction Board 6mm x 1250mm x 2500mm is a high quality fiber-cement base building board used as both a building board as well as a part of a ventilated facade solution.

Heavy Duty Cembrit Construction sheets are untreated and appear with a natural raw expression with the option to be either left untreated or to be painted with diffusion open masonry and concrete paint.

Cembrit HD is a durable, dimensionally stable, impact-resistant material that withstands extreme climates, resist rot and fungus.

HD Boards make ideal solutions for interior design due to their applicability in more demanding environments.

Cembrit Heavy Duty will naturally effloresce in the same way as other building materials with a mineral salt content.

Boards will vary randomly in grey shade from board to board.

The shade of grey will also differ from batch to batch.

Specification:

Thickness: 6mm

Width: 1250mm 

Length: 2500mm

Board Coverage: 3.12m2

Density: 1550-1800kg/m3

Thermal Conductivity: 0.48W/mk

Bending Strength: 26N/mm2

Surface Front Face: untreated natural raw expression

Surface Back Face: untreated natural raw expression

Durability (Life Expectancy - Minimum): 30 years

Steel Frame Fixing: 35x4.2mm counter sunk cutting head screw

Timber Frame Fixing: 40x2.3mm nails (timber studs)

Fire Reaction: Class A2-s2, d0 Limited Combustability

Cembrit HD (Heavy Duty) Features:

 · Class A2-s2, d0 fire rated.

 · Highly durable.

 · Strong and weather-resistant.

 · Withstands extreme climates.

 · Dimensionally stable.

 · Maintenance free.

 · Mould resistant.

 · Impact-resistant.

 · Easy to install and clean.

 · Fiber-cement base board.

 · Resist rot and fungus.

 · Natural raw expression.

 · Uncoated untreated grey colour.

Cembrit HD (Heavy Duty) Application Areas:

 · Self-ventilating facades.

 · Dormer window.

 · Weatherboards.

 · Window elements.

 · Eaves and roof edges.

 · Balconies.

 · Prefabricated facade elements.

Cutting Cembrit HD (Heavy Duty) Construction Boards:

 · Circular saw with dust cover and collector.

 · Keyhole saw/jigsaw for cutting large holes.

 · Universal saw for cutting small quantities.

 · Hole saw for drilling holes with sockets.

 · Hand-scriber with hard metal point.

 · Face masks are recommended when there is no vacuum extractor or when large areas of boards are being cut.

 · When using hand tools, the boards should be cut with the bottom face uppermost.

 · When using stationary saw equipment, the boards should be cut with the top face uppermost (the saw blade must always approach the board from the top face).

 · The periphery speed of the circular saw should be 40-50m/s.

 · Cutting depth 10-15mm beyond the board.

 · Holes are drilled through the top face with a hard metal drill at 1500rpm.

 · Always place a layer beneath the Cembrit boards - e.g. woodchip – to achieve neat drilling holes.

 · Cembrit recommends carbide tipped saw blades.

You can order free Cembrit HD samples here.

*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet