 These units, as is super easy to make, we can make a full double high sash worser to window units in two hours maybe, with people who haven't done it before. So not going full steam once you get up to flow of it. You can do a flat in the afternoon sort of thing. And the cost is about three to five pounds per unit. This is meant as a very low-fi, accessible way of doing this. Like you can make it in a couple of hours for a couple of quid, not knowing what you're doing, not having ever done it before, and it will do 95% as good a job as a proper commercial unit. These are just strips of insulation board that we've cut. We made up a jig for cutting them, but you can just do it with like a straight edge and overall though. These are 40mm, but it's fairly arbitrary, but it sort of seems to work out okay. This board, it cuts quite easily, although it does make horrible sounds. So if you've got any kind of like sound sensitivity or like adverse to like high-pitched screeching, then like you're not going to enjoy that process. Just cut them with a standard file knife. It does dull the blades fairly quickly, so I also just got a pack of replacement blades. The board we got, they're 4x8 boards, so 120x240cm, 25mm thick. We get them from Juicens. I think they're about like 28lbs or so, but it's fairly standard. You can get similar from anywhere. Having them large as good as you can cut off solid strips, you could join bits together like skewers end to end, but like it's a little bit fiddly. Also having these be sort of slightly flexible a bit means that they can be made worse. You can be like some millimetres off and that will sort of accommodate itself into the window frame, whereas like if it's like a proper rigid material, especially if it's like properly glazed with like acrylic or prospects or whatever, you have to get it right. And you're probably going to be like actually screwing or otherwise like hard mounting them into the window frame, which can then potentially be an issue for your deposit of the landlords, how you put screws into the window frame and keep them with your money, whereas these are just like friction fit, so they do not affect the building structure at all, so you do not need permission from your landlord. It's just like putting a chair in a room. The connection points are just bits of bamboo skewers, it's like a pound from like a pound shop or somewhere. Cut one at an angle so that like that it got sharp on one end and then they just sort of just push in and then just connect bits to bits. These are just like any pound store. I got some Tesco like for like a pound 30 or something, all the bamboo skewers you're going to need for the rest of your life. And then double-sided tape. I use like the skinny tape for the center bit, so we can sort of like put both bits of someone at the same time. Diamonds has it for like five quid a roll, 25 meter roll. These are just got online for like three quid. So this is Tweaky Micron Cellophane. It's pretty clear, it's pretty cheap. I think this is 100 meter roll that I got for like 12 pounds something on eBay. And it's very clear, does a good job, easy to work with. The only thing is that if it starts tearing it will completely like tear out, but once it's like locked down with the full ring of double-sided tape then like tears can't start so they won't spread. First measure all four sides of your window, especially with old windows, it can happen that opposite sides of your window frame are not the exact same size. Then measure and cut your insulation strips to size. Remember to take off the width of your strips from the vertical ones, otherwise the frame will be too big. Then connect your strips with the bamboo skewers. Use two that will keep the strips from rotating. Check that the frame you made fits snug into your window frame. At this point you're still able to do adjustments. Next is the double-sided tape. You want to cover the entire length of each strip of insulation board to make sure the clear film will seal properly. If you have a middle beam, skinny tape might be useful. Since we've got skinny tape we're doing two rows of skinny tape in the middle. If you've only got the white tape then you put one strip down, you put the film on and then you put tape on the film and then you come from the other side otherwise this will overlap itself. And then add the cellophane film. Make sure you keep it nice and tense to avoid wrinkles. Trim the edges and then turn the frame over and add the second layer of the cellophane film. Here are some additional tips, tricks and thoughts from Daniel. If you make the frame too small it won't hold itself in obviously. You can make little friction grab points just with some tape just so it's bending over on itself just at the corners. Just to meet those couple of millimeters to the frame. All it has to do is hold its own weight in a window frame. It weighs nothing. It doesn't have to be a perfect fit. If you make it too large it will sort of bow in on itself and you'll get like some flicks in the things like gaps will open up which is not ideal but if you take it any way that's not really the end of the world. Even if you do put it in at it's too big you can just like shape it's off. Most of the kind of like the workflow is just sort of like getting in their eyes a bit too especially since these like these window frames are like never like square themselves. It can be quite a good idea to tape the edges of any ones any units that you're not taking out because if you've got one unit in one window that you can just take out open the window get the insulation through then obviously you wouldn't tape that but basically all the other windows the edges if you if you take them it'll just like completely encapsulate them so you won't get condensation behind the unit and you won't get sort of like out spill of cold air from like any like little gaps around the edges. Also even if you're not doing these window units like just like the sash windows themselves if you just go around the edges with masking tape makes a surprising amount of difference because like these windows don't seal very well even if they're weather stripped so the cold cold air just like blows through them it sort of sort of like encapsulates them off but if you do that to all of your windows then you will have ventilation and mold columns because the moist air will just like build up will find some cold surface somewhere in your house and will drop out as condensation so it's kind of like a bit of balance between not wanting to let a whole bunch of cold air in but also even to get like the moisture laying in the air out so generally tape off every window other than like two on opposite sides if possible and then just like a couple times a day just like just blast those open single the warm air out especially if you just had a shower in the bathroom put the windows on the fan in the kitchen when you're cooking. In Edinburgh we will be making all of these materials available at sort of like key pickup points that you can which will be broadcast through like the various platforms that we're on we just don't go and just like get enough materials for as many windows as you want to do so we can just like just mass produce these just through the city and just get laid out and just like everybody's houses now it's already winter so we're putting work crews together for that we'll have like um little teams going around so you just put your hand up and we'll send someone out go through the checklist of what your flat sort of like needs and what problems are and if that is windows then these these units can be done for that if it's other stuff we can do other stuff um it's just a matter of just just picking them off the low handing fruit so that the stuff that we can do ourselves without having to like tag in like a you know like a carpenter.