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About Ruben

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    Cornwall, UK

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  1. So we're in a bit of a situation where neither the timber frame manufacturers nor the metal roof supplier/fitter want to take responsibility for the roof make-up we need before the aluminium goes down...hence I've decided to tackle the job with some assistance from a few others. Looking at diagrams online and some help from the metal roof supplier shows that on top of our rafters, we need a breather membrane, 50x50 battens and then plywood decking (12mm thickness at the edge and then 18mm thickness to the ridge). So far so good. I've got all the materials ordered and delivered along with tools etc. But there doesn't seem to be much online about the roof build-up for a metal roof and how to do it yourself. The main gist of it seems simple enough but I have a few questions: * I've got self-drilling Torx woodscrews, 80mm for attaching the battens to the rafters and 60mm for attaching the plywood to the battens - are these long enough? * I've been told we need to leave 10mm at the ridge for ventilation - I'm assuming the breather membrane is still intact there and I just leave a gap where there is no plywood * Do I butt-up each length of plywood against the one next to or under it or do I leave a tiny gap between each one - do they expand? * Any rough ideas how long it will take for an approx 135m2 roof to complete the make-up? It's mainly me on the roof and a couple of people assisting on the scaffolding, but I have one other person for one day who's also happy to go on the roof. My feeling is the membrane and battening shouldn't take too long but the plywood is another matter. As it stands we have 6 full days available. Any assistance greatfully received!
  2. Just to clarify, I'm not looking to save a few hundred pounds here and there at the expense of a critical set of measurements, it was more for me to understand the role of the structural engineer in this process.
  3. OK, so basically it's really up to whether the building control inspector is happy with the combination of the drawings and the state "on the ground" as far as foundations and drainage go. Did you need any calculations for the blockwork skin (assuming you had that)? My view is that the blockwork skin is not a structural element and so why would it need a structural engineer? In addition, the timber frame company will be providing the groundworks contractor with loading calculations for him to use for the foundation construction.
  4. We're looking at building a timber frame house with a block and render skin, using strip foundations with block and beam. I have confirmed with the timber frame company that they are responsible for all frame design including structural elements. We have a groundworks contractor who will be doing everything up to the timber frame going up and then most probably returning to construct the block skin, and he has said that he just need building control sign off to start. We have been advised that we need a structural engineer for the "slab", drainage and blockwork skin. However, I'm struggling to understand why we'd need structural engineer for these elements. Is anyone able to advise?
  5. Great, thanks everyone here for saving me the money of installing a useless system. I think Henry will get a little more use yet!
  6. I don't think it necessarily needs to be an issue. There are now a number of manufacturers that make Hue-enabled wall light switches for example that fit standard backplates. Then you can have your smart system and if Hue is no longer a thing in a few years, you can always swap it out for something else. The issue in my mind is when you rely on a smartphone or other device as the only way to control a system.
  7. So the plan is that at the point when we decide to move out, I can always remove my homebrew automation systems and just replace them with either manual controls or whatever is the flavour of the moment at that time in terms of automation. For example, when we recenty moved out of our house, I removed the Hive and replaced it with the "dumb" thermostat that was originally there when we moved in. Levels and styles of automation to me are very personal things and just as I would probably not be 100% happy with whatever a person/developer had decided to install in a build, I'm sure others would also not be happy with whatever I decide to do. So it's just about building it in a way that allows it to be changed relatively easily. @joth: I've not heard of KNX but I'll do some research on it - thanks for the pointer!
  8. One of the things I'm trying to avoid is tying myself into a proprietary solution. I'd probably want to spend the time to implement something open source where I can see what it's doing and even change it if I like. That's one of the things moving me away from Control4/Crestron (as well as the awful visual design).
  9. I do have a bit of a soft spot for my Henry, but yes he is a little heavy and ungainly to carry around.
  10. I guess that's unless you're in a "smoke-free zone" and they're burning coal and the like...
  11. It will definitely be segregated from the main home network that contains files, tablets, laptops etc. Luckily my area is technology so I guess I'll be spending my time securing the lot!
  12. Yup, not given a thought to whether anyone else in the development may be planning a log burner or similar fire. I will ask. I don't think everyone is going to be going for the Passivhaus standard so some may be thinking about this.
  13. Do you just find the Dyson more convenient, or is there some other reason?
  14. Indeed, I've seen a few other plots that would have been interesting but already had planning permissions for 1.5 storeys and all the houses around were the same. So I decided to not bother with the inevitable fight for 2 storeys.
  15. @Dreadnaught: Indeed I did see the announcement about those systems - I am waiting intently for products that meet the standards to be released so I can see how they work and how they can be integrated. @SteamyTea: What do you mean by integrated? Do you mean systems that are all manufactured by the same company and use their cloud systems? If so, I'm not looking necessarily to do that. In my previous place I had a Yale alarm, Hive for heating, Nest for smoke alarms/cameras and Hue for lighting and none of them really integrated with each other. However, if you mean using something like HomeKit from Apple to have a single "dashboard" to control all that stuff, then that is what I'm looking for. There's something to be said for having a single place to go where you can basically "control your home", especially for people who aren't as interested in the technology itself and don't want to have 10 apps installed. I just don't want to delegate that responsibility to a company like Google who will mine it to the hilt so they can sell me ads based on my activity.