"Bought this to insulate the pipes in my airing cupboard, as some are very close to the wall and foam would not fit. Easy to use, just cut to a managable length and wrap round the pipe, then fix with tape. Think it said it is equivelent to 30mm foam insulation. Not sure about that as pipes still feel hot to touch. If doing again, I would probably use this only for hard to reach pipes and use foam for others. Overall easy to use but time consuming."
"Easy to install, but more importantly reduced the level of heat escape from 25mm hot water pipes that run up the wall next to the fridge freezer. Can already detect that the fridge is running more efficiently."
"I used this to wrap a blown warm air pipe under the floor of a caravan. Tight space but made easy by ability to pull through the floor/pipe gap. Secured it with waterproof tape (60514) then tie wraps. Used whole roll, job took 30 mins. Outlet much warmer, has survived exposure to road/weather for over a month."
"Was recommended this product to insulate the heating pipes under our caravan floor - works well and not too difficult to fit with the help of a good adhesive tape Used it on house pipes also and as it is easy to fit around corners it should be a good choice for difficult areas ."
"Bought this to replace some old hessian type lagging around my 8mm microbore heating pipes (couldn't get the usual foam stuff for 8mm pipes). It went on ok but when I tested the CH system all the foil got hot so it acted rather like a radiator which in my mind could be counter productive. As a precaution I resurrected the hessian lagging and wrapped everything with that."
"I have an old house with lots of exposed pipes. I thought this would be the answer, however when compared to the older style cloth pipe wrapping to this product the outer temperature was considerable hotter thereby not insulating as well as the old stuff. I'm reverting back."
"Does not work. This was measured scientifically. Wrapped a pipe with various laggings and measured surface temperatures. Can calculate effectiveness taking into account the new outside diameter at the surface. For example, if bare pipe is 60 degC, ambient temp is 20 degC, then out of two laggings of the same thickness, the one that measures 30deg is better than the one that measures 50deg. (laggings are different thicknesses so you need to calculate the relative heat loss at the new outside diameter, which is only a little more complicated). For "SPIRAL-WRAP", it would measure a small amount less than 60deg, ie completely ineffective. This is because in between the plastic air bubbles, the inside and outside aluminium sheets are connected - they have to be to form the bubbles. And this is a perfect heat conductor: pipe to aluminium to outside. The theory of using a metal sheet together with an insulating sheet is that the metal reflects infra-red heat that penetrates the insulating layer. Old style pipe and radiator wrap had a 4mm layer of solid lag with a single sheet of aluminium. In the test this was even more effective than the cheap thick grey foam pipe lagging commonly available. But this "SPIRAL-WRAP" product DOES NOTHING! It looks pretty but connects heat straight through."