How to create a stunning flat roof in 2023, how to build an extension step 4 

@@KilkennyLights Thanks Frank Good luck 🤞

Hi Thank you 😉 I am glad someone is watching it

Thank you :-)

Thank you very much 😊 Yes, I know I need to improve. I am preparing a nice video about silicone rendering where there is going to be a lot of explaining and talking. I know it sounds silly because I am talking to my own camera so there is no pressure, but sometimes I forget how to speak English 😅 I am getting better though. I appreciate your comment, thanks !

You’re doing great keep it up 🤙

Hi We have the 150mm Celotex wrapping the gutter from the bottom (in the ceiling) and overlapping it by 200mm, so there are no cold spots. Well spotted!

Thank you Adrian

Thank you 😊

Thank you very much

Thank you! Cheers!

Thanks 👍

Thank you 🙂

Thank you very much 😊

@@KilkennyLights Thanks mate 😉 Skylight glass it is. Combination of two glasses glued together. One larger to cover the outside and one smaller to go inside. Wooden batten holding it from the bottom, covered with plasterboard. You can get UV reflective glass as well, it will help to keep it cool in summer. It's not hard. It's all about building the frame 6x2 joist. The glass gets measured, supplied and installed by the glass company. This video should be sufficient for you to understand how and surely you can do it 😉

@@colaistechiarain5768 Hello, and thank you for engaging We installed the 150mm insulation under the gutter so the roof doesn't have a cold spot. We overlapped it by 200mm just to be sure 😊 It was done under the BC supervision so this is the correct way.

Hello mate Thanks for dropping by. This was done in times when it was very hard finding supplies. Could not find the VCB anywhere so the building control agreed on using a roof membrane. It's there to protect the plywood from condensation. The spiky washers (timber connectors) are to stop the joist from moving independently. If they move, they move together so they work like one massive beam.

​@@yesconstructionltdThanks for the info 😊

Hi Jacob I am sorry, I missed your comment. I always try to reply to all comments. The glass is glued- two layers. One is silicones on top of the opening and the second letter is smaller and it sits inside on the frame so there is no chance for it to slip, fall etc.

Hello mate Thanks 👍 You need to install the barrier onto the joist from the inside. Use 50mm double sided tape. As you tighten the plasterboard the tape will compress and seal the penetration (so they say) 😉

Thank you very much 😊

Hi We did. Take a look again. We laid down the membrane before installing insulation. Building control had to see it as well to sign it off .

@@yesconstructionltd I do apologise. I’ve seen the full video on your channel. What grp system did you use? Was it an iko product?

​@@user-no7fr5jr7m 😊 No worries We use RESTEC FLEX Brilliant gear. It's flexible www.roofingoutlet.co.uk/products/res-tec-flexitec-2020-resin-20kg?variant=39639333961799&gad_source=1&gclid=CjwKCAiA0PuuBhBsEiwAS7fsNS7o-wRchj3mTRQXsRa5H9FDxo4hojyn4jDOu1FPe4rm0gfnbRfT-RoC4s8QAvD_BwE

@@Alex-if3sr Hi There are 7 steels all together. You can see how we are installing them in my other video from the same playlist. The main steel is 305x203 and 8m long It has splice on 1/3 and joining plates due to difficult access. In one piece, it would have been a nightmare to move around and install

Dzięki 😊

Hi It is insulated from underneath with 150mm celotex. We overlapped by 200 so no cold spot.

@@yesconstructionltd Cheers mate I was going to suggest the same and seal with expanding foam 👍👍

Hi The box is insulated from the bottom with 150 mm celotex and we overlapped it by 200mm. Building control wouldn't pass the job if it wasn't done. Well spotted! I like to have the gutter concealed in the roof. The extension looks a lot neater from the outside. Thank you for engaging 😉

@@yesconstructionltd hi, thanks for your reply... Nice work and videos, keep it up 👌

@@bilpat5123 Thank you 😉

Sometimes we do In this case we have the 150mm cavity wool coming all the way up and we lay down dpc on top to prevent any moisture penetrating through.

If you check my other video 5 leaking roofs(thumbnail) you will see that in there we used cavity closure. It's not a regulation to use the closures on top of the wall. You must use them around doors and windows

@@yesconstructionltd Hi mate, yes I no that, I just couldn't see cavity closures or insulated dpc in those reveals, still can't to be honest, it just looks like you've returned the blockwork

@@ETB9090 I thought you were talking about the top of the wall on the roof. This is an unusual case. The bifold door is 3.6m, each section is 1.2 m triple glazed so very heavy. The door company suggested returning the brickwork in the reveal for strength. We then took this thought to building control and he blessed the idea providing that the client agrees. Later we glued insulated plasterboard in the reveal to provide some form of insulation. Sometimes we have to tweak the rules to achieve a greater goal and as long as the BC blesses everything, it's all good 😊

@@yesconstructionltd well if BC have signed it off mate I suppose that's all u need, I notice you've done the same to the window, I get the reason behind it returning the blockwork, but in that situation I would of used Damcor or similar insulated dpc and still returned the blockwork as it's only about 20mm thick, you've had a very flexible BC officer out mate as I there's a lot that probably wouldn't pass that on new construction, on existing to mitigate cold bridging I've used 10mm aerogel in the reveals then bonded plasterboard to it, in all honesty I prefer blk returns it's a better fixing but use Damcor, anyway great videos mate, and thanks for taking the time to answer my questions, cheers👍🏻

Hi 6x8 m 7steels. It was a nice project 😊

Exactly how you described. The glass on the outside is bigger and the one inside is smaller so it fits inside of the opening. It's supported with a wooden frame inside and covered with plasterboard.

It was a tricky one. The only way to achieve more height was to install a cold roof but this is not how it was designed by the architects.

Do you mean the cost of the entire roof?

I was waiting for someone to ask this at some stage 😉 I couldn't get it on time from Jenson and Selco didn't have it either. I asked the building control if he is happy with normal ply and he was as long as we covered it with a membrane.

You are the second one actually 😉 This was the time when I couldn't get the VCL even online, and other materials too. I asked the building control and they said that the membrane is fine so we used it. Looks like you know the game, good on you mate 👍

Hi, and thank you for engaging. There are many ways of finishing a flat roof. In the video we are using top quality materials and the job is executed properly so roofs like this should last a very, very long time.

@@Deanwhitfield We normally do, but at the time this was built we had nationwide problems with materials supply. The BC approved the membrane instead

Thank you David for your honest opinion and I definitely take that on board. I am emotionally connected to the videos so I make many mistakes and I only see them a month later. It's also a confidence issue ( talking to camera) but I think I am over that now and I feel a lot more comfortable. You are not the first person saying this to me so I am reall trying now to take my videos from a different angle where I explain the stages, layers, materials etc. I will be recording how to apply micro cement in the bathroom and a double pocket door installation and I have plan to really go into details. Thanks again for the valuable comment

hi We have a barrier as high as the insulation. There is no need to go above it, as there will be no condensation there. All the wood above it is cover with resin and flushings.

@@yesconstructionltd I was told to put a sheet of visqueen in before the insulation but your Video didn’t show this. Thanks for the reply

@@petersmrek7617 Thanks for the comment Yeahhh, the next one I've built was done like that. It's a long story why we didn't do it the way you say. I am starting a new extension soon and your comment motivated me to make another roof video, thanks 👍