Magnetic-strip secondary glazing

SOME USEFUL FACTS & FIGURES Here are some figures about household heating/energy loss and the cost benefits of doing a lot of draught-proofing and adding magnetic-strip secondary glazing (or for a very cheap short-term fix, seasonal glazing film (like cling-film)) (2020 note: this information was collated in 2016 from the Energy Saving Trust, buildingconservation.com/ and English Heritage ) • 18% of all household energy is lost through windows alone, 26% through roofs and 33% through walls • 30% of heat lost in a home can be due to draughts • Comprehensive draught-proofing can reduce fuel bills by 20%+ per year • Curtains reduce heat loss by 41% • Blinds and shutters reduce heat loss by 51% • Insulated shutters reduce heat loss by 61% • Modern roller blinds reduce heat loss by 22% • Double glazing reduces heat loss by 55% (U-value 3.14) • Magnetic-strip secondary glazing reduces heat loss by 63% (U-value 2.70) • Magnetic-strip secondary glazing can be around 15+ times cheaper than double-glazing • Draught-proofing (using draught-proofing strips) around windows can reduce energy loss by 80% • Seasonal glazing film can increase temperatures in your home by 10% and costs from £2 per window Extracts from an English Heritage 2010 publication titled 'Energy Efficiency in Historic Buildings: secondary glazing for windows': '• The benefits of double glazing over other methods of window upgrading are often overestimated. Much of the comfort and energy efficiency benefits of new double glazing come from the reduction of draughts that will result from well-fitted window frames with integral draught-proofing. ... With continual improvements in the performance of secondary glazing it may even be possible for the performance of secondary glazed windows to exceed that of new double glazing. • Heat losses from a typical traditional window are predominantly through gaps around the window. With larger windows the proportion of heat lost by conduction through the glass tends to be greater. • In terms of noise reduction, double glazed units are no better than single glazed units; and can be slightly worse for traffic noise. The important criteria for noise reduction are that the windows are well fitted and draught-proofed. Secondary glazing, with its larger gap between the panes, is a better sound insulator.'

i’ve worked in construction all my life and this is one of the clearest concise videos i’ve ever seen.. well done guys excellent work 👍

I am going to install this in my 72 year old mother's house. Thank you so much for the video. Lifesavers!

This is my favourite video on the entire internet. My goodness, how nicely spoken that lady is! My mother and father narrated cine films in that voice in the 1970's. Truly a joy to listen to.

I followed your instructions and installed secondary glazing in my draughty Victorian flat. What a difference! Thank you very much for this helpful video. 👍🏻

Many thanks for this really helpful video. Following your directions we have just done eight windows in my daughter's 1930's gatehouse in Westhill Putney in one day. It would not have happened without your tips.

What a very informative video and well spoken and classy lady . She makes Joanna Lumley sound like Waynetta Slob . Excellent 👍

Hello Eco-Lewes, thank you so much for your very informative video on Magnetic-strip secondary glazing installation. Thanks to you I came across a company called WindowSkins, who supply and fit the glazing. I had the glazing installed a month ago and I'm so pleased to have been able to keep my lovely wooden sash windows. The glazing is unobtrusive and looks amazing. No more draughts, condensation and noise. The best thing is that the glazing is not visible at all. I went for the option that allows me to open windows rather than remove them during the summer months. Thank you.

I have almost completed secondary glazing my Victorian house with single glazed sash windows. The difference is amazing. I was inspired by your video. Thank you !

Thank you for this idea, Jill. I had never headd of it. I installed 5mm ploycarbonate sheets, and the benefits are really noticeable instantly. My main concern was sound insulation, and I can say the noise was reduced about 80% with this system. I would recommend a lighter sheet (3 or 4 mm) to make lifting the sheets easier, as a higher thickness doesn’t really affect sound insulation but does make sheets heavier.

Fantastic, thank you. We're about to move into an old cottage and was looking at secondary magnetic glazing, your video has shown me clearly how easy it is to do it yourself.

I have not used your great advice, but it became already warmer from your heart

Thank you so much. Am considering buying an old Victorian house which has sash windows and was daunted by the thought of repairing them, getting them replaced (which I was loath to do) or living with a cold house. This is such an easy and cost effective solution and I can't believe I've never seen this before.

Thank you for this great video. I was about to purchase ready made-up sheets and then came across this video. I've now done five windows myself with great savings. I have a grade 2 listed house so needed to find a solution that works within listing regulations and this definitely fits the bill. I've noticed a huge reduction in condensation (to pretty much none), warmer rooms and noise reduction benefits. I've adapted the method to other window styles, aside from sash windows, with the same good results. One point to emphasise is draughtproofing the windows first as much as possible (the sound of creaking acrylic in high winds can be a bit eerie); I used gapseal sash window filler alongside brush and foam seals, which worked well in the recent high winds. Once again, many thanks.

I've been using these for years in my Victorian House - I'm very happy!

This is a great demonstration I have something similar but not a efficient. My hone about 100yr old with window weight pocks. Huge air filtration issues. STOP AIR with a 10 to 1 saving and concord improvement (1000%)! You improved green for America and UK and others. THANK YOU

Tuesday 28th September 2021 Plexiglas 4mm arrived from Sheets Plastic at 1300 by 1600 all 3 pieces were fitted to original wooden 1850 sash Bay Window, we are absolutely thrilled, cut down noise from main road fumes and dust! Thank you for taking the time doing this video was very helpful and informative.

Really useful video and very much enjoyed the no-nonsense DIY aesthetic of the film making too. Refreshing!

Thanks so much for posting this video, you are the most delightful presenters. With the latest "Beast from the East" hurtling through my lovely old sash windows, your expertise offers a really helpful solution.

Great video, well done. I don't even need secondary glazing but was strangly hooked till the very end! Bravo 👍🏽