Architec 400 - polyfab

Architec 400 is industry renowned, extra heavy duty knitted shade cloth for large commercial projects with market leading UV protection.

Weight: 400gsm
Dimensions: 3.8m x 50m

Architec 400 is the ideal shade option for schools and playgrounds, commercial areas and car parks. It is a 400gsm High Density Polyethylene (HDPE) fabric making it extremely strong and resistant to tearing. The fabric is heat set, making it easy to use as it lays flat and there is no curling or rolling up when marked out, cut or sewn.


Suitability for end use is determined by end user.





Midnight Green


Navy Blue






Please note: The colour may not match actual material colour exactly.

Our Gallery

Scroll through our gallery of Architec 400® images and videos to see more applications.

Features and Benefits

  • High strength heavy duty shade cloth
  • Monofilament construction using the unique ovalon yarn
  • High strength and high UV block together (9/12 Colours “Very Effective” or above)
  • Allows water penetration needed for extra-large car park sails.
  • Excellent dimensional stability
  • Excellent resistance to puncture to protect from vandalism
  • 3.8m width

Shade Fabric Summary AS4174: 2018

No Flat Tape, Maximum UVR Protection

Architec 400 contains no flat tape. It is made from a combination of monofilament yarn and our proprietary OvalonTM monofilament yarn. OvalonTM provides high strength and minimal stretch in both the weft and warp direction of the stitch pattern, maintaining tension. It also offers over 90% UVR protection.

Built for High Tension

As with all types of shade cloth installation, shade sails using Architec 400® should be well designed and engineered to hold the fabric under the appropriate tension. The fabric should be supported by using suitable strength poles and footings, as determined by a professional engineer and made and installed by a qualified contractor in accordance with local building codes.

Easy to Work With

Architec 400 is pre-stentered to reduce shrinkage and improve the stability of the fabric. This process improves the workability of the fabric during the fabrication and installation of the shade sails or shade structure.

Architec 400 Technical Specifications


Construction Monofilament and Ovalon
Weight 400gsm
Width 3.8m
Roll Length 50m
Roll Diameter 34cm
Roll Weight 76kg
Freight Cubic 0.44m3
Breaking Force Warp / Weft 1050 / 1600 N
Tear Resistance Warp / Weft 300 / 280 N/50mm
Bursting Pressure 4200 kPa
Bursting Force 2300 N
Flammability Index AS 1530.2 (Range 0 low, 100 high) 18
Spread of Flame Index AS 1530.3 8
Smoke Developed Index AS 1530.3 (Range 0 low, 10 high) 5
UVR Block 87 to 96.5 %
Shade Protection AS4174: 2018 Effective – Most Effective
Limited UV Warranty 15 years

Further specifications are available on the Technical Support page. Click here.

FR Results

AS/NZS 1530.2 and 1530.3 available on request.

Architec 400 15 Year Limited UV Warranty

Shadecloth for Human Protection

The Nolan Group warrants that the Polyfab brands of knitted shadecloth, namely Parasol, Polyfx, Comshade, Comshade FR, Comshade Xtra, and Architec 400 are specifically designed to be used as shadecloth for human protection, and are guaranteed to be supplied free of defects.

‘Free of Defects’ means that the products meet their published descriptions and technical specifications, and are homogeneous in appearance after allowance for minor variance, such as tie knots or twisted yarn that do not affect physical properties, but are the unavoidable result of the knitting process. The specifications for all products, including overall weight per square metre, have a tolerance of ± 10% on published values, due to the variances inherent in production and scientific error in the methods of test.

The Nolan Group further warrants that the products will perform satisfactorily when used in its design context in the temperate climatic conditions experienced throughout Australia.

‘Satisfactorily’ means with continued but gradually diminished utility over its expected life, due to the unavoidable effects of Ultra-Violet Radiation and Weathering, such as colour variation, strength loss, and dimensional change. The measure of acceptable deterioration in this context is determined by Australian Standard AS 4174 – 2018 “Knitted and Woven Fabrics”, Section 3.3 “Resistance to degradation by light”. Extreme climatic conditions, particularly high temperature and humidity, may accelerate this inevitable product degradation.

‘Design Context’ means the products are fabricated and installed to the certified design and specification of a licensed Structural Engineer; or according to the Standard Details available on the website , certified for the particular location by Izzat Consulting Engineers; and the product is maintained under the required tension over its expected life, without excessive stretching or overloading during installation.

‘Expected Life’ is at least the period covered by warranty, provided the product is installed correctly, and cleaned and maintained as recommended. The warranty period for strength loss is TEN YEARS from the date of installation for Parasol; TWELVE YEARS for Polyfx, and Comshade; and FIFTEEN YEARS for Comshade Xtra and Architec 400.

The warranty period for colour change, in excess of that allowed under Australian Standard AS 4174-2018, is TWO YEARS for all products.

The warranty specifically excludes mechanical fatigue or damage due to wind load, and damage attributable to faulty design or installation, such as abrasion by sheathed cables, or tear caused by undue concentration of stress at supports; to storm or cyclone events, including hail loading; and to vandalism.

The Nolan Group’s liability under the warranty is limited to replacement of the material only; or its equivalent cost, both options with a discount on value for the time the fabric has been in place, on a pro-rata basis as follows:-

  • The first third of the warranty period Nil Discount
  • The second third of the warranty period 50% Discount
  • The final third of the warranty period 75% Discount

Liability for any consequential loss, including labour and installation, is expressly excluded.

In the event of a claim, proof of purchase must be provided. In the event of a dispute, the determination of the manufacturer or recognised industry association is the sole basis on which replacement or refund is made.

This limited warranty shall under no circumstances override legal guarantees that may be required under the Consumer Act. The warranty is not transferrable and applies only to the original purchaser.

Care and Maintenance Instructions

Heavy duty shade cloth is an industrial textile made from High Density Polyethylene (HDPE) yarn, which has ultraviolet stabilisers and colour pigments incorporated into the structure.

HDPE is resistant to most acids and alkalis, and fungal attack. It does not absorb water, which is a significant factor in resisting staining and inhibiting mildew growth. These characteristics make HDPE ideal as a base yarn for a lightweight, strong shadecloth. However, it has only a weak resistance to halogens, such as chlorine; and halogenated hydro-carbons. It is also affected by strong oxidising agents, such as hydrogen peroxide, chlorox (bleach) and some alcohols.

Using such chemicals for cleaning should be avoided. Dirt or mildew is usually the result of contaminants caught in the interstices of the cloth, and should be easily removed using a high pressure hose, which should be used judiciously, to avoid physical damage to the yarns and thread. For stubborn stains, scrub with a brush and a weak solution of household detergent.

Careful consideration should be given to the environment in which Polyfab shade cloth is used. For example, when suspended over a swimming pool, it will be exposed to chlorine emissions and its effective life may be reduced.

The shade sail should only be installed by a company or individual that has appropriate experience and accreditation from the Specialty Textiles Association, Lightweight Structures Association of Australia, or similar body; to the design and specification of a licensed civil engineer.

It is important that the shade sail remains under adequate tension to minimise the possibility of fatigue cracking due to wind-flap. Re-tensioning will be necessary if the shade sail becomes loose and sloppy.

Download the Care & Maintenance Flyer