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Constructafloor External

Cemintel Constructafloor^® External is a nailable, advanced lightweight fibre cement structural flooring product suitable for external use.

The panels have a tongue and groove joint, which keeps stability between joists and reduces the risk of membrane cracking. As the product is nailable, installation is faster as no countersinking is required. They do not contain any magnesium chloride (salt).

Category: Flooring & Decking

Store availability: Cabramatta, Katoomba

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Features

Nailable, advanced lightweight fibre cement structural flooring product
Suitable for external use
Tongue and groove joint keeps stability between joists and reduces risk of membrane cracking
Installation is fast, as no countersinking is required
Do not contain any magnesium chloride (salt)

APPLICATIONS

	Result
Applications	Flooring & Decking
Type of Building Structure	Residential housing, commercial & other buildings (building limited loadings – refer to Design & Installation Guide)
Wet Areas	Yes

PANEL – DIMENSIONAL & GEOMETRICAL CHARACTERISTICS

Dimensional/Geometrical Characteristic	Specification	Manufacturing Tolerance
Panel Dimensions	600mm W x 2700mm Lx19mm D 900mm W x 1800mm L x19mm D 600mm W x 2400mm L x22mm D	Width +0-3 mm Length +0-3 mm Thickness +0.3-0 mm
Profile	Tongue & Groove
Perpendicularity/squareness of edges	2mm/linear meter
Weight (typical)	25.5kg/m2 ( Constructafloor 19mm) 28.6kg/m2 (Constructafloor 22mm)
Layout Options	N/A
Jointing	Concealed

PANEL – STRENGTH & MOISTURE RELATED PROPERTIES

Physical Property	Result	Relevant Standard
Modulus of Rupture (Wet)	>11MPa	AS2908.2
Modulus of Elasticity (Wet)	1.5-2.5GPa
Density (Oven Dry)	1220 kg/m3	AS2908.2
Water Vapor Diffusion	Not Required	Not Required
Water Tightness (24hrs)	No water droplet	AS2908.2
Water Absorption (Saturated – 48hrs)	30 wt%	ASTM C 1186
Moisture Content (EMC)	7 Wt %	ASTM C 1186
Moisture Movement (30-90% Humidity)	0.062%	ASTM C 1186

PANEL – OTHER DURABILITY/WEATHER RESISTANCE INDICATORS

Test	Result	Relevant Standard
Heat Rain	PASSED (25 Cycles)	AS2908.2
Freeze Thaw	PASSED (50 Cycles)	AS2908.2
Warm Water Resistance	PASSED (56 days)	AS2908.2
Soak Dry	PASSED (25 Cycles)	AS2908.2

PANEL – FINISH CHARACTERISTICS

Characteristic	Result	Relevant Standard
Finish	Preprimed
Coating Type	Sealer: Polyurethane
Colour Bodied	No
Paint Type	N/A
UV Resistance	N/A	N/A
Formaldehyde Emission Rate	N/A	N/A
VOC Emission Rate	N/A	N/A

Spectral Reflectivity Values	Solar Reflectance %	Solar Absorption %	Basix Colour	Relevant Standard
Constructafloor® External				N/A

PANEL – FIRE RESISTANCE, THERMAL & ACCOUSTIC PROPERTIES

Characteristic	Result	Relevant Standard
FIRE RESISTANCE
Combustibility	Suitable for use in applications where non-combustible materials are specified by the Deemed to Satisfy Provisions of the 2019 BCA Vol 1 Clause C1.9
Fire Hazard Properties	N/A	N/A
Classification	N/A	N/A
Surface Burning Characteristics	N/A	N/A
THERMAL CONDUCTIVITY
Thermal Conductivity (λ-Factor)	≈ 0.229 W/m.K.	N/A
Thermal Expansion Co-efficient	N/A	N/A
ACOUSTIC VALUE	N/A	N/A
Sound reduction (depends on construction)	N/A	N/A

SYSTEM SOLUTIONS

Characteristic	Result	Relevant Standard
Within Scope of AS4055?	N/A	N/A
Wind Loading – Residential housing buildings within the scope of AS4055	N/A	N/A
Weatherproofing	N/A	N/A
Cyclonic Conditions	N/A	N/A
Fire Resistance Limits (FRLs)	N/A	N/A
Bushfire Construction	N/A	N/A
Acoustic	N/A	N/A
Thermal	N/A	N/A

FIXING

Characteristic
Maximum Span (Stud Spacing)	Up to 450mm (19mm Constructafloor), up to 600mm (22mm Constructafloor)
	N/A
Nail to Timber Frame	Yes
Screw to Timber Frame	Yes
Screw to Steel Frame	Yes
INDIRECT FIX
Timber Frame	N/A
Steel Frame	N/A
Masonry Frame	N/A
EXPOSED FASTENERS
Screw	N/A
Rivet	N/A
Nail	N/A
CONCEALED FASTENERS
Clip	N/A
Countersunk Screw/Nail	N/A
Adhesive, Split Batten, etc.	N/A
Hidden by Overlapping Panel	N/A
Flush Jointed (Taped)	N/A