|All that rain- West Ealing|
This Saturday I took a walk to a home in Hanwell (noting the water 'pooling' by the local railway line from all that rain as I walked there) boy did Iget wet on my walk back.
At the house of the demo' I took part in a practical workshop that addressed the addition of a further layer of transparent (very clear Acrylic) material to windows (internally) to reduce the loss of heat. For some on low incomes in either their own homes or rented accommodation this is a potential money saver and will improve comfort.
The people behind the presentation were part of the Ealing Transition project and were welcoming and friendly to the half dozen or so of us who turned up to learn more..
As the Perspex can be delivered cut to specified sizes by the supplier the work and tools needed are quite straightforward, the addition of fixing to the Acrylic and the existing window surrounds is all that needs to be done.
The tools suggested are:
DIY scissors - to cut the steel and magnetic tapes ( these available at Wickes and are better than wire cutters)
Hammer - to hammer in the wire clips (if used)
|You'll need a clear working surface|
Sand paper and Chisel -to remove lumps and burrs around the windows
The fixings and Acrylic for this project were ordered from:
Acrylic sheet 3 milimeters (mm) thick cut to size and delivered from
Magnetic tape & Steel Tape: get a Secondary Glazing Kit from
* The old artisan adage of measuring advice is worth sticking to so do 'measure twice and cut once.'
Graham who is helping roll out the project has approached Brunel University with a view to getting post graduate research to validate the initiative both in terms of energy saving and also as a method of empowerment for the (self) installer, to my mind actual indicative figures are essential for getting some momentum behind this so hopefully some students will come on board.
Graham also mentioned the optimum spacing between the two layers, strangely this reminded me of a Physics school project which I undertook around 40 years ago - this had included the idea of triple glazing.
* The gap between layers for secondary double glazing should be between 10mm - 20mm (around 3/4" in old money is ideal) as well as reducing heat loss there is a reduction in acoustic noise from outside and graham said he'd found less condensation formed - practically you'll have to arrive at a spacing that the window will let you make.
Part of the Ealing Transition's vision is for groups to come together to support one another on the install and also act as a bulk buying co-operative minimizing ordering costs, which will reduce the carbon footprint impact (as well as the burden of post and packing).
Here's a useful couple of links
Photo's from the session
Centre for Sustainable Energy
and a nice Youtube video here