Tag Archives: external cladding

Properties and Advantages of the NRG Greenboard Walling System

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NRG Greenboard panel is manufactured from high density, rigid, expanded polystyrene. The raw material is gained as a by-product of the manufacture of oil.

Greenboard is manufactured without the use of CFC’s and does not contain or emit any poisonous gas. In  fact, NRG  Greenboard  is made  up of 98%  air entrapped  in  a  closed
cellular structure of polystyrene. This entrapped air accounts for the extremely good insulation properties of the Greenboard.

The off cuts of NRG Greenboard can be glued within the wall cavity prior to the installation of the internal linings as additional insulation. This cuts down on the impact to our environment as all the material is being used, leaving a minimal amount of material to be removed from site.

Insulation for Energy Efficient Buildings

The Greenboard system is the most cost efficient method of insulation in terms of R-value per dollar. Unlike some other methods of insulation that allow thermal bridging across the timber or steel studs framing. NRG Greenboard provides a continuous insulative sheath around the entire building.

Warranty – 10yr

NRG warrants that the Greenboard sheets (the “Product”) will be free from defects due to defective factory workmanship or materials prior to the installation of the Product for a period of 10 years from the date of purchase, subject to compliance with the conditions published in NRG Product Warranty 2007

 Easy to Render

The surface of the NRG Greenboard is grooved providing an excellent substrate for  Reinforced Render Systems.

Energy Efficient Production

Greenboard uses much less energy in its production than conventional building materials such as concrete and masonry

Fashionable Render Finishes

Available in a wide range of Architectural colours and styles (Refer to your selected manufacturers, texture coating specifications).

Design Freedom

Curved walls, rounded corners, embossed patterns, raised wall areas, mouldings and other architectural features are simple to achieve and cost-effectively with the versatile NRG Walling System.

 Vermin Retardant

NRG Greenboard is impregnated with a natural insect retardant, (Bithentrin)

 Biologically Inert

The board will not rot and provides no nutritive value for insects or micro-organisms.

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EPS Specimens

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Materials

The client supplied EPS specimens as follows:
Nine specimens 50 x 50 x 50mm (nominal)
Six specimens 200 x 50 x 50mm (nominal)
Six specimens 100 x 100 x 25mm (nominal)
Ten specimens 25 x 67mm diameter (nominal)

BRANZ was not involved in the selection of these specimens and as-such is unable to comment upon how representative they are of normal production material.

Description of test procedures

The Test methods used can be found in Table 1 below

Results

The results reported here relate only to the items tested.

AS 2498.3 Determination of Compressive Strength

Five specimens 50 x 50 x 50mm (nominal), supplied by the client, were tested. The surfaces of the specimens parallel with the faces of the sample were marked to ensure that they were the load bearing surfaces and that the load was applied perpendicular to these faces. The specimens were tested at a cross head speed of 5mm/minute. The results are recorded in Table 1.

AS 2498.4 Determination of Cross-Breaking (Flexural) Strength

Five specimens 50 x 50 x 200mm (nominal), supplied by the client, were tested. The specimens were tested at a span of 152 mm and a cross head speed of 25 mm/minute. The results are recorded in Table 2

AS2498.5 Determination of water vapour transmission

Five specimens 67mm dia x 25mm (nominal), supplied by the client, were tested. Testing was conducted from 15-Feb-10 to 22-Feb-10 using an environmental chamber set to product conditions of 23.0C and 85.0%RH. The test was terminated after 6 data points were obtained for each of the 5 specimens under test. The results are recorded in Table 3.

AS 2498.6 Determination of dimensional stability

Three specimens 100mm x 100mm x 25mm (nominal), supplied by the client were tested. The length (L) and width (W) of each test specimen were measure at three positions. Two length and width measurements were made 10mm from each edge and the third measure at the centre of each edge. Thickness (T) was measure at five positions, 10mm from each corner and at the centre of each specimen. The specimens were conditioned in an oven set at 70C (dry), measurements were taken aft 20 + 1h, 48 + 2 h, 7 days. The results are recorded in Table 4.

No visual distortion was detected at any of the exposure periods

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NRG Greenboard Wall Cladding System

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NRG Greenboard Energy Efficient Wall Cladding System
NRG Greenboard is an insulative walling system suitable for external cladding of timber or steel framed buildings as well as solid concrete and  masonry walls. The system provides a weather resistant, seam free rendered finish in a wide range of textures and colours.

Design Freedom, NRG Greenboard -Curved walls, rounded corners, embossed patterns, raised wall areas, mouldings and other architectural features are simple to achieve and economically viable with the versatile NRG Energy Efficient Wall Cladding System.

Additional Benefits:
• Sound Insulation – 60mm Greenboard (Rw 35, Ctr – 6)
• Environmentally Friendly – Recyclable, Re-usable Products.
• Insect Repellent
• Flame Retardant

NRG Fencing
NRG Fencing looks great, its sturdy profile and attractive appearance will give any development that distinctive architectural appearance. No more costly strip footings and engaged pier construction.

NRG Fencing has less than ten components are lightweight and easily to handle. It can be purchased in kit form or erected by our skilled team of tradespeople.
NRG Fencing is finished off with stylish and decorative Hebel post caps, top rail and post capping moulds and finished with a decorative textured paint.

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