Warm Roof vs Cold Roof. What’s The Difference?

What's the difference between a cold roof and a warm roof?
Roger explains the benefits of both of these flat roof insulation systems and the potential problems that you might encounter when installing your flat roof.
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#WarmRoof #ColdRoof #FlatRoof
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[@stuartnurse9390]

So rather than seeing a 5 inch higher, nice flat roof - the neighbours can look at a huge number of tiny chimneys. Silly sausages

[@britman555]

I think I would have preferred looking at a flat roof rather than a dozen mushrooms poking out of a roof.

[@johnburke8713]

Nice one...

[@himynameisandyb]

You really think the neighbour would notice 120mm difference?

[@michaelmcclurg9698]

That’s one reason I will not live in a subdivision especially if it has an HOA. 10 acres plus for me

[@craigchamberlain]

Such a unique breadth and depth of knowledge from Roger, we are lucky that he is willing to share it with us. Thank you Roger! 🙏

[@richardlewis5316]

The neighbour was not comfortable with the additional height of 150mm but now has to look at a roof which is a field of mushrooms. Hopefully the fairies sitting on them will amuse him!!

[@MrLewisdix87]

Good explanation for people that don't understand the difference. 1 thing that would be better for ventilating the dead spots created by the lantern would be to counter batten the roof the opposite direction of the joist to create a cross flow ventilation throughout the whole roof. Although you increase the deck height by 25mm you get rid of the need for unsightly mushroom vents everywhere 👍

[@stakkerhmnd]

If only we all had Air Source Heat Pumps then cold would be a thing of the past.

[@DerekTJ]

The neighbours must be either very difficult or very influential.

[@johnwolcot]

Thanks for this. Definitely the clearest and most easy to understand explanation of a cold roof and warm roof on KZbin.

[@strathvaccentralvacuumsyst8415]

Great as always Rodger. I have a 15-year-old log cabin. It's perfect inside but a bit dated on the outside. I spend around £100 per year maintaining it as well as the cost of heating. I am about to insulate it on the outside all around and have the products but not 100% sure of which way to have the insulation, membrane etc. I don't want to insulate the inside as I like my LOG cabin. I have 60mm Kingspan sheets (got them cheap so can't change) a breathable membrane, PVC cladding for the walls and box profile sheets for the roof. I was intending to stitch the membrane onto the outside walls then Kingspan held with 2"x1" battens and the pvc cladding onto this. There would be the 1" air gap behind the cladding vented at the top and bottom with mesh to stop wasps etc. The roof is 20mm t&g pine and is felted. The felt needs replacing so was intending on removing this stitch the breathable membrane on top, Kingspan, 15mm OSB then the box profile sheets directly on top. Do I need to change the membrane for a vapour barrier? If so where does it go? Do I need an air gap roof or walls? Any advice would be appreciated as I'm getting conflicting messages on other forums, everybody seems to be an expert

[@IzzytheBricky]

Very clear and helpful, nice video Rodger! We're always doing these sort of extensions and when the joiner talks to me about hot and cold roofs I'm always bamboozled 😂😂 look forward to see the next video on this project bud!🍻👍

[@SteveAndAlexBuild]

Interesting stuff Rog , what a massive pain in the area for

[@glynlewis1664]

Thanks Roger, excellent explanation to a bit of a head scratcher. Am going to replace my old plastic roof on my conservatory and had been trying to weigh up the best way of tackling it but you just explained it in less than 10 minutes!

[@daveberry6599]

It's time to thank you. I've used your videos to build 2 walls, insulate my garage and tank a wet room. You explain things so well that I understand and can question things in my head. Insulated summer house / office is next which I'm hopping to start in the next month or two. I still bring in the pro's where needed, but understanding what is going on really helps and I think just raises the standards as a whole. Thank you!

[@justinstephenson9360]

Great video explaining in very clear way the difference between cold and warm roofs

[@james.telfer]

Thanks, excellent video!

[@KennyEvansUK]

Great vid Roger, nice and simply explained.

[@philipswich29]

Excellent as always!