Installing External Wall Insulation - Is it a DIY Job?

EWI Store is the insulation and render specialist.

Dryrod Damp Proofing Rods

What are the advantages of external wall insulation?

• Reduced heat loss and energy bills
• Fewer draughts
• Does not disrupt the house while being installed
• Does not reduce internal floor area
• Allows walls to contribute to thermal mass (the ‘tea cosy’ effect)
• It improves not only weatherproofing but sound resistance too
• It increases the life of the wall
• It reduces condensation on internal walls

Find out more:

Why Choose EWI Store?

They take a whole-system approach to external wall insulation, stocking all the materials required to help installers achieve a stand-out result.

Their selection of products is constantly growing as they strive to offer customers the best possible choice of materials from trusted manufacturers and established brand names.

Offering a comprehensive, quality range of insulation and render products, EWI Store is the place to go for great prices on your render and EWI project.

Whatever your plans, order with EWI online or over the phone and they’ll get the materials delivered to your home, building project or workplace.

• Speedy delivery
• Quality materials
• Thousands of render colours
• Technical support on-site and over the phone
• Order online or over the phone
• Technical training sessions every Thursday

Train at the academy with EWI Pro

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#EWI #ExternalWallInsulation #insulation

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[nicolaebulgaru]

Not many people understand that building is such a highly technical endeavor, even when humble materials are used but more so with new products. This is really educational. Thanks.

[Ampersand]

Love that you showed that simple error around the window — a real confident pro will admit they're not infallible!

[TheComputec]

Big Thank you to Roger and the other people involved in this. Free educational videos like this make the world a better place. I appreciate all the little tidbits of info especially things like the circular polystyrene disks and the explanation as to why those elements are not to be ignored. Not only informative but also entertaining watching skilled people doing jobs properly. Brilliant stuff guys !!!

[MAMDAVEM]

DIY'er here, yesterday I just finished doing an external insulation job on my rear bathroom extension, roughly twice the area you have shown with two windows using the EWI system. I have been very impressed with the EWI products and the help they give on doing the job. For me the cost was about £800 so I recon I saved myself quite a bit of money as it is quite labour intensive when you take into consideration all the stages. Your video was great and I wish I had seen it before doing the job. My learning was;
.- It does take quite a long time to do given all the stages, particularly if the weather is not on your side.
- I used EPS board below the insulation tray and I wish I had put it one before puting on the tray
- I didn't use the protective film on th e windows and it meant I had a quite a bit of clean up to do on the window frames. I would use this in future.
- As a DIY'er who has done some plastering before I was surprised how messy the job can be, so I would recommend putting down a protective sheet on the ground
- It is surprising how thin the final render coat is (mines was a 1.5mm grit) and it is really easy to put on too much. I also used a plastic plasterers trowel as a float and now recognise this was the wrong tool
- Putting on the final siliconerender coat on top of the insulation is surprisingly noisy, my watch kept telling me that it was too loud (over 100dB) so folks may want to protect their hearing when they do this.
- I undertand that if you are doing more than 15% of the area of a wall then it is subject to building regulations?

[dirtibertfirst]

There is nothing quite like watching a talented professional with years of experience doing their stuff. All interests in insulation aside, this was a joy to watch.

[andymorgan]

I’ve been in construction 36 years & would like to say your vids are great

[creight]

Props to you Robert, especially nice to see humility and enthusiasm when it comes to learning new techniques and materials. Construction is continuously improving, especially when it comes to insulation. Keep it up, I'm loving learning alongside you.

[khankrum]

I am a Pensioner living in Bulgaria and you have just saved me a lot of money that I can ill afford! Many thanks

[Tom-zyke]

Excellent presentation as always from a knowledgeable and experienced craftsman. What I do find shocking is the amount of plastic based foam that's finding its way into buildings and the rasping of the insulation blocks you demonstrated clearly released so much microplastic into the environment that it's easy to see why it's becoming such a problem. In 2022 microplastics were found in human blood for the first time, it was found in the blood of 80% of people in the study and if its in your blood its in every organ in your body.

[davidthegolfer]

Roger, Ihave watched a few of your videos. You are such an impressive guy. Anyone would be proud and reassured to use you to work on their home. I’m past the age of doing this stuff, I just pay now but I find your advice and skill amazing to watch. Thank you for what you do. Best wishes.

[mauricedevitt]

This man is a true Craftsman and clearly loves & knows his trade.

[ewistore]

It was great to work alongside you on this project!

[Lee.Willcox]

Roger, it's not quite 2 hours, a day since you uploaded this video and YOU HAVE 25k+ VIEWS. WOW, wonderful. Love your vids and my house is coming along nicely mate. 18 months since I purchased the dump and I only have the hall, stairs and landing to finish plus the bathroom (next summer). I have done it all on my own with great help from you Mr !!!

[robertkustos]

Excellent video Roger. There isn't many people that admit a mistake like you did with the window cill . Thanks for the vid. From 🇬🇧

[pinkelephants]

Absolutely fabulous to see someone paying a good amount of attention to health and safety issues, irrespective of whether or not it's a professional or amateur job. The sheer number of people who DON'T either use the (correct) safety kit or more often than not, not at all, is just staggering. Anything from face mask and eye goggles to the [right] chainsaw operating wear can make the difference from having a few minutes of minor inconvenience to don this stuff to a lifetime of diminished physical capacity in one form or another; hospitals see this all the time.
I once was walking down an alleyway via a turnstile gate into a local authority housing estate. The Council had contractors chopping down a large tree just beyond the turnstile gate. One of the chainsaw operators had laid a [switched on] chainsaw on the tree stump in front of me & turned away. Being aware of just how potentially dangerous this was, I politey asked him to either move it or turn the chainsaw off. The verbal abuse I received isn't fit to print here. All it would've taken for serious & potentially life threatening injuries would be if the chainsaw motor's vibrations had caused it to move along the stump & fall off as either myself or the tree gang moved past.
Ultimately safety matters much more than most people think. So well done for treating this issue with the seriousness it deserves. You're a long time with (insert long laundry list of potential injuries here).

[davidmorris]

I went on the EWI Pro installers course a few weeks back. Excellent days training with Paul and his team...would highly recommend. I'm only intending doing my own house but the course was well worth it. Great real world video Roger thank you!

[scottfisher]

I like to see skilled people at work, particularly people in construction. Well done Roger. I have 100% faith in your work.

[aro-rat]

This is an excellent demonstration, hard work and I can see why the costs are high as you take scaffolding into account too. Well done to both, in fact three of you.

[wdeng]

I read comments first before I watched the video. After watching, learned a lot. Millions of thanks

[ilijadjujic]

We had it done to our house when it was still owned by the housing association, it made a massive difference to our energy bills. Luckily when we bought the house off of them we never got charged any money as it was a few years after it was done
Definitely recommend it to anyone who owns a house with solid walls