Skip to main content

New Product Highlight: Isover Foil Faced Pipe Sections

Isover Foil Faced Pipe Insulation

Isover foil faced pipe insulation is designed to provide thermal and acoustic insulation of copper and steel pipework. These are strong, lightweight pre-formed ‘snap on’ sections, manufactured from up to 80% recycled content.

Isover Foil Faced Pipe Sections provide a factory applied reinforced aluminium foil covering, incorporating a self adhesive overlap, providing an effective vapour control finish.


  • High levels of thermal and acoustic performance.
  • Consistent density and concentricity of bore positioning provides consistent performance along the length of the section.
  • Euroclass A2 fire rating when classified with BS EN 13501-1.
  • Manufactured from up to 80% recycled content.

Isover Foil Faced Pipe Section corresponds to the BRE Gloabal Green Guide online generic specification 'Glass wool insulation - density 80kg/m³' ref 915320059 which achieves a summary rating of A+ within Domestic, Health, Industrial, commercial, retail and Education.

Will not absorb moisture and is chemically neutral / slightly alkaline. Will not accelarate corrosion with steel, coppers or aluminium.

Supplied in 1200 mm lengths in a range of standard bore inner diameters and wall thicknesses.

Fire performance:

The base mineral wool of Isover duct products has a Euroclass A2 fire rating when classified in accordance with BS EN 13501-1. Additionally, the factory applied aluminium foil facing meets the highest standards required by BS 476-6: Fire Propagation and BS 476-7: Surface Spread of Flame. The foil is therefore rated Class O to the Building Regulations.

Smoke and Toxicity - Achieves the criteria for smoke and toxicity as given in the IMO Resolutions MSC 61 (67).

Service temperature:

The insulation can be used on pipework with continuous service temperatures of 230 °C and over. Where temperatures exceed 230 °C, consult with Saint-Gobain Isover Technical Department for design advice.

Declared Thermal Conductivity:

0.032 W/mK at 10 °C mean temperature.
0.035 W/mK at 50 °C mean temperature.
0.043 W/mK at 100 °C mean temperature.
0.062 W/mK at 200 °C mean temperature.

Chemical Resistance:

Immediately following manufacture, the leachable ion content of Isover glass mineral wool pipe insulation falls within the 'Acceptable Analysis' area of the 'Acceptability of Insulation' graph given in ASTM C795, tested in accordance with ASTM C871-04. Will not accelerate corrosion with all copper, steel and aluminium plant and equipment

Vapour Control Performance: 0.00024 g/sMN.

British Standards Institution: ISO 14001:2004. British Standards Institution
British Standards Institution: Environmental Management System ISO 14001:2004. British Standards Institution
British Standards Institution: Quality Management system ISO 9001:2008. British Standards Institution


Popular posts from this blog

The Beginners Guide To Pipe Insulation: Getting to grip with the basics

Our Beginners Guide series of blogs will look at the common areas of pipe insulation lagging that you will want to look at when choosing your product. This guide will be of most interest to the DIY installers, but some of our later guides will cover more complex products and areas of application.

One of the things we get asked about a lot is what the dimensions quoted for pipe insulation actually mean. You will always see three measurements quoted when describing pipe insulation; Wall Thickness, Bore Size and Length.

In the below diagram, A is the "Bore" and B is the "Wall".

Wall thickness is very simply how much insulation you have; so for example if you have 13mm Wall pipe insulation, then that means you have 13mm of insulation on either side of your pipe. This thickness is very often one of the most important part of your decision; too thin and you might not get the results you are looking for but too thick and it might not fit between your pipe and the wall.


The Beginners Guide to Pipe Insulation: Flexible Foams

Next up in the series we are doing on pipe insulation is "flexible foams"; a category that includes polyethylene and expanded nitrile rubber.

Polyethylene Pipe Insulation
Climaflex pipe insulation is the UK's leading brand for polyethylene pipe insulation. This is the grey foam that most people are familiar with, the kind you would traditionally find in garden centres for example. Polyethylene is the cheapest, widely available product in the market. People very often wrongly assume cheap means poor quality, this is not the case with a brand such as Climaflex. It has a thermal conductivity of 0.034 W/m.K at 0°C which is broadly equal to that of any other flexible foam, and it also has a much higher "μ factor" than other foams, making it more resistant to moisture ingress. These facotrs make it ideal for use around the home, being easy to work with and providing good insulation. 
The material can be purchased in 1m and 2m lengths, and is available in wall thicknesse…

Frost protection for domestic pipes

With the cold weather approaching we thought it would be a good idea to touch on how best to protect your pipes from frost this winter.

When dealing with frost protection on pipes inside a building your aim with insulating them is to delay the onset of freezing for as long as possible; it is not possible to guarantee a pipe will not freeze by insulation alone. The better the insulation, and the thicker the insulation, the longer you will give yourself. Under normal circumstances you aim to give yourself about 8-10 hours protection against sub zero temperatures. With pipes inside a home this is usually long enough to be sure the pipes will not freeze.

Ice formation inside the pipes will lead to an increase in pressure. As the water tries to flow this pressure will increase, and eventually will lead to the pipes bursting. A burst pipe can cause a lot of problems, not least of which is a lot of damage to your property and a lot of expense incurred.

Water regulations state that all water …