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Double Glazing Blogger: Tackling The Trickle Vent Issue

Wednesday, November 25, 2009

Tackling The Trickle Vent Issue

I have sent the following e-mail to Mr Tyson Anderson in response to his article in the latest issue of the GGP magazine:

"Dear Mr Tyson Anderson:

I work for a double glazing installations company in West Yorkshire, and was particularly interested in your article about trickle vents in response to Paul Jervis’ in the last issue.

Some of the points you mentioned in your article I failed to agree with. One of the major issues installations companies have with trickle vents is that when we have tried so hard to produce and install the best energy efficient windows possible, we find it completely contradictory to install trickle vents which badly affect the efficiency performance of the window. Once the windows with trickle vents are installed, the feedback from our customers is that they don’t use them. They find them ugly, unsightly, unnecessary, and that if they wanted ventilation, they would open a window. This is the second major issue, customers despise them. In your article you mention that we should be up-selling the benefits of trickle vents to customers. The problem here is that to a customer there is no obvious benefit.

In the middle of your article you go on to say that many of the social housing organisations have chosen to fit trickle vents on all their replacement windows as standard over the past twenty years. I agree with you that this perhaps was a sensible option, possible because they could see the restrictive new ventilation laws on the horizon. But this is an easy option for them because they have the power to install windows to their own specifications. On the residential/homeowner end of the market, the task of trying to sell trickle vents is much harder. To reinforce that point, out of the three and a half years I have worked in sales, I have had only ONE customer ask for trickle vents to be put back into the new windows.

There is then also the cost issue. We sell trickle vents at a price of £15 per vent (inc VAT 15%). Now imagine a larger size installation that may require 20 of them. That’s an extra £300 for ‘flimsy, unsightly’ trickle vents. You must agree that from a customer point of view that is a very large pill to swallow for what they are and for how little they will be used.

Perhaps we are wrong, perhaps the installation end of the industry is missing out on some major selling points and benefits. But this is why I have sent this e-mail."

It will be interesting to see if I get a reply!

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5 Comments:

Anonymous David Bingham said...

Personally, I hate trickle vents with a passion. Can't see the sense in punching holes in energy efficient windows that allow heat out and cold in? Even when closed, they are not well sealed.

It's not like your house is air-tight anyway, otherwise we'd all suffocate.

November 27, 2009 at 10:17 AM  
Anonymous Anonymous said...

The problem i have observed, with trickle vents, is the Manufactures in 2 window styles that i have seen, in both one company drilled holes through the Profile, and then put vent covers over, the other company has put the holes through the profile during Manufacturing stage, both may i add, did not put a Sleeve in the holes they made to seal the Chambers there by reducing the thermal efficiency of the Frame, by exposing the Chambers to Air and Moisture including the Centre Chamber that carries the Steel strengthener bars.

in order to satisfy building regs, the vents have to be installed using a sleeve going through the profiles to seal the chambers in the profiles, if not Air Moisture and contaminants can find their way into the profiles, the core structure of the Frame, over time, the water through Air moisture and vapour, builds up in the PROFILES causing Cold spots usually at the bottom of the Profiles inside, you will find water , built up over time, this will freeze up in winter, causing ice to form on the inside of the frames in the home, even if the heating is high, at 20 degrees +, this will also show on the Glazing units, recording tests on my windows show a reading of -7 degrees C on the inside of the Glazing units and -7 degrees C on the outside of the glazing units. and lots of ice, on the frames and glazing units, the windows were doomed to fail, by this act, companies who do this have not complied with Building regulations.

February 4, 2010 at 9:07 PM  
Blogger Double Glazing Blogger said...

I'm going to make a wild guess a say that the anonymous comment was left by someone called AnglianEyes?

February 4, 2010 at 11:49 PM  
Anonymous Anonymous said...

Aaargh! My local building control department says I have to have a trickle vent in my new sash window. I agree it seems madness to double glaze and draught proof a window only to invite cold air in again. Also the vents supplied with my window are disgusting to look at and seem to be made of the flimsiest plastic. Since I now HAVE to have the wretched vents, I just hope I can find a mechanism that's well designed and made. I don't hold out much hope...

March 26, 2010 at 4:53 PM  
Anonymous Elitis Windows said...

Trickle vents are yet another example of a half-right idea not being thought through. Not only do they significantly compromise the energy efficiency of a window, they also drastically reduce its noise reduction qualities. We recently installed replacement windows in a house next to the M6, and the customer complained that noise levels were worse than their old windows. I have to agree. But we've fitted premium quality, A-rated windows that, without this bloody stupid and pointless vent, would provide a quiet, energy efficient environment.

January 6, 2012 at 10:02 AM  

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