Solarspot Logo

Why we're better!

Solarspot or Solatube, which do you choose?

Solarspot – buy with confidence – more light for your home

More efficient than the Solatube or Sunpipe

Solarspot, Solatube, Sunpipe and Velux Sun Tunnel compared.

Here at Solarspot, we are so confident about the credentials of our product that we are happy to make direct comparisons with our ’competition’ and name names so that you can make a more informed choice about which is the most suitable solar tube for your home.

Read the report or skip the boring stuff and see a summary >

The two shower rooms shown belong to neighbours Suzie and Chris. They both have 250mm tubular daylight systems but the difference in the light levels in considerable.

Ask yourself one question, if this is’t true, would be allowed to say it?

Acrylic versus polycarbonate domes

All Solarspot domes are supplied with acrylic domes because acrylic is a more light efficient material and does’t go yellow and cloudy when exposed to UV light. Now Solatube, who prefer polycarbonate, might try and tell you that there is an issue with acrylic and building regulations however this is not the case. Let usexplain.

There are no specific building regulations written for sun pipe systems. There are however regulations written for traditional roof lights, and this is what Solatube have chosen to follow and highlight. To summarise a very long document, for a dome (or roof light) to be required to be made from polycarbonate, the area of ’glazing’ would need to exceed a ratio of 5:1 (roof to glazing). The average ration of a sun pipe style system on a typical roof would be near to 100:1 so it does’t even come close.

The BRE test of Solatube domes

In a separate test commissioned by Monodraught Sunpipe, the BRE tested the light transmittance (efficiency) of their own dome (Sunpipe) against the Solatube Raybender 3000 with ‘Light Tracke’ reflector. In the tests, the standard Sunpipe dome was shown to be 15% more efficient than the Solatube – those patented Fresnel lenses where certainly doing a great job at keeping out all of that troublesome daylight.

In a second part to the test, they looked at the UV effect on polycarbonate domes and the results were rather alarming. In as little as four years, the Solatube polycarbonate dome was proven to degrade, turning cloudy and yellow, to point where it had lost a further 10% of an already poor initial efficiency.

Just to give you a comparison, the Solarspot dome had a transmittance figure of 94% and only showed a 1% loss in the four year period. Overall the Solarspot dome was around 30-45% more efficient than the Solatube depending on the life of the unit.

BBA certification and what it means to you.

If you are a national house builder, you need products to have a BBA certificate to include them in the NHBC 10 year warrantee. If you’re not, then it means absolutely nothing. It is a certificate of conformity which means that when it says the tubing is 99.7% reflective, or the flashing is made from powder coated steel, then it is. Is it a guarantee of how good it is or how it compares? The answer is no.

At Solarspot we have a coveted ISO 9002 certification that does the same thing. Every stage of production and material sourcing is tracked and recorded so you can be assured that every Solarspot system is manufactured to the same standard using the highest quality materials.