Pilkington Activ Blue – v – K2 Celsius Glass

So which is the best, of two of the most popular conservatory roof glasses? Well I decided to do a little research and came up with the following results.

Sources for above figures: 

http://www.cervoglass.co.uk/cervoactiv1.html
http://www.celsiusglass.com/tech.htm

As you can see from the above figures, it’s a case of ’swings and roundabouts’ and it really depends on what you or the customer wants.

Pilkington’s strong selling point with their Activ Blue glass is the self cleaning properties while K2’s strength with their Celsius Plus glass is the greater solar heat reflection.

Activ Blue has the additional advantages of a slightly lower U-value and a little better light transmission, although there’s not really that much in it.

Conclusion: It looks to me like both the Pilkington Activ Blue and the K2 Celsius Plus conservatory roof glasses perform pretty well and I believe are similarly priced so I guess it’s down to what’s most important the the end user, self-cleaning or a slightly higher degree of solar heat reflection (solar control).

Personally, I prefer the Pilkington Activ Blue as it still provides excellent solar control along with true self cleaning which is extremely convenient when situated in a conservatory roof.

I’ve also had personal experience of sitting in a conservatory on a hot sunny day with Activ Blue in the roof and also in the side frames, and I’ve got to say that I was most impressed with how cool it really was in there and that’s one of the reasons that I would personally recommend it.

Obviously, we also have the very strong selling point of the Pilkington brand name with all their marketing behind it.