ProDave

For a temporary fixing of the bottom of the membrane, don't nail it directly, fix it down with a batten nailed through and leave the nail heads a bit proud so you can pull them out.

The issue of "anchoring down" the tank was one thing that made me chose the Conder. It has built in legs and the ring around the bottom. So it sits unaided in the hole while you pour enough concrete to encase that ring to anchor it down. Some of tha alternatives that had various anchor kits, seem to involve someone going down into the hole to fix parts of the anchor kit, which frankly sounds a VERY dangerous exercise.

When I tried Sketchup I just found I had no idea of scale, I didn't know if I was drawing a microdot, or something the size of the moon. And trying to draw two lines that touched but not overlapped seemed beyond the wit of man. I use ORCAD, which is an electical circuit CAD program. I have been using it in one form or another for more than 20 years, originally runing under DOS and when it migrated to Windows kept pretty much the same look and feel. I guess the difference is I know it inside out. In my last job, just before I left, they switched to an electrical cad program based on an add on to autocad. I HATED it. Everything was so clumsy and imprecise, just moving a few wires around was a chore. And that's how I found Sketchup. Orcad is pretty lousy for ordinary drawings, but at least I can do something in it very quickly.

I tried Sketchup, I just could not drive the damn thing. Nothing at all about it was the least bit intuitive and I just couldn't get it to do anything sensible. Perhaps I should try harder? Or I'm to old and set in my ways.

If you have to replace the floor joists, is there any merit in using steel? You can get the strength you need in a much smaller thickness. A nearby pub is doing this where they need to lower the floor level of a bar they are renovating to enable wheelchair access. Lowering it and keeping wooden joists would result in insufficient headroom in the cellar. So instead they are installing a set of steel floor joists that lower the floor level while still keeping enough headroom in the cellar. I take it the second picture shows a single storey rear extension to your house that takes up all but 6" of your back garden?

Yes that's about it. What are you using to draw that sketch to do it so quickly? TP sell those eaves trays dirt cheap if there is one near you? (don't think there is much "near" you)

Yes I admit the picture might be hard to understand. Start with a sloping roof with your cross battens on to support the box profile. your bottom batten say 6" up from the bottom of the roof slope. Now lay something down the roof to represent the box profile roofing. Offer up your fascia board, with a vent strip on top of it and set it at a heght that almost touches the underside of the roof sheeting (small gap to allow for the infill piece) Your fascia board will of course now be higher that the bottom of the slope. This is where the eaves tray comes in. The eaves tray fixes to the top of your fascia and creates the kick up slope to meet the main slope of the roof. This tray is made of plastic, and the joint between the fixing and the main part of the tray, is scored, so you can pre bend it to match the angle it has to be at. Once you have done that mock up you take it all apart, lay the eaves tray first, then the membrane which now kicks up on the tray and over the edge. then fix the vent strip to also fix the bottom end of the membrane, then fix your battens and counter battens. Making any sense yet? If it wasn't hissing down I would go and try to get a better picture.

What is wrong with the way I am doing it, in post #6? the bottom horizontal batten is only about 6" up roof so I don't think it will leave much flapping in the wind. Your roof is going to be so high compared to the gutter, I would be worrided the water might miss the gutter.

There's this at toolstation, http://www.toolstation.com/shop/Plumbing/d20/MDPE/sd2729/Metric+to+Imp+Conversion+Kit/p51455 Looks like a replacement set of inserts to convert a metric fitting to take imperial pipe. Use two of those and a metric tee and your new branch will come out at metric size mdpe. Buy the fittings and check again with your vernier that it is the right size before cutting the old pipe. If you later want to disconnect the original supply point, either fit a stop end plug into the tee, or replce the tee with an elbow fitting.

Hear hear. I have lost a stone in weight and 2" off my waist in the last year of building. I have gone back to having to wear a belt to keep my trousers up.

I guess the important thing is the overall thickness of the unit must be 52mm as that is what the window is built for. I will have to check building regs, but the bottom of the window will only be about 300mm above the floor of the half landing, so I would expect it to require toughened glass, and probably a handrail across the window opening? (if it does need a handrail that will be made "portable")

This does seem something site insurance does not cover very well. My site insurance covers my static caravan, but it was unclear if it covers the contents. A phone call to the insurer got verbal confirmation that it does, but I couldn't get anything in writing. What about when we do move into the caravan, then all our furniture will be stored in the part built house? On our first build, 13 years ago, that policy made it clear it covered the 'van but not the contents. I tried to buy contents insurance for that, but it seemed nobody wold insure a static caravan unless it was on a recognised mobile home park.

Interesting point. I have wooden fascias that I intend to over clad with aluminium. Do you think the likely expansion over a 4 metre length would be such that I should machine slots, rather than holes, for the fixing screws?

We have Rationel triple glazed doors and windows. Most of them are 4,20,4,20,4 which I understand. The doors however, and one of the larger windows, have toughened glass on the inside, and the make up of those is described as 4,20,4,18,6,4 Now I understand that means the inner pane is thicker and is toughened glass, and hence to keep the same overall thickness, the "inner" gap is 18mm instead of 20mm. But the bit that confuses me is the 6,4 at the end. Does that mean 6.4 (six point 4) mm thick toughened glass? or does it mean something else? I am asking because one window, the landing Window, we want a stained glass unit in that. Because Rationel don't do stained glass, we have bought that window unglazed and are looking for someone to make up the triple glazed unit for it with the middle pane being stained glass. Because it will be quite low on the half landing, I think it also needs to be toughend glass on the inner pane. So I am trying to understand just what we need to specify.

No condensation trouble with ours, it passes through a cold roof space so would be a prime candidate for such a problem. Ours is a "solar tube" if that helps, It is just a steel tube with a very highly polished mirror finish to the inside surface, a plastic dome and flashing at the roof end, and a fairly flat round fitting at the ceiling end, not unlike the cover of a round 2D type light fitting (I have lost count of how many times guests have asked about the "light" on the landing and how to turn it off) A big improvement in our case could be mader by lagging the tube as it goes up through the cold loft, and some sealant to seal the ceiling fitting to the ceiling would help. I will digress to the condensation issue. It is something I have never understood. Our present timber framed house is absolutely bone dry. You can hang wet washing in the utility room on the "pulley" and it makes no difference. You can bath or shower and there's rarely any codensation on the mirrors. Now our previous house was a 1930's semi with solid 9" brick walls. So it was obviously a poorly insulated house. It had run of the mill UPVC double glazing. We never had condensation on the windows, but any cold surface, like a toilet cistern full of cold water, would be dripping with condensation after a bath or a shower. Now the house was heated so it was warm and comfortable. What puzzles me comparing the two houses is why did the 1930's house have so much moisture in the air it condensed on a cold toilet cistern, yet the new house doesn't. It can't be the amount of moisture produced by the occupants, so the extra moisture must have come from the fabric of the building. I can well see in a "damp" house like that, a solar tube might have problems with condensing moisture.

I think the basic rule, is take the bottom of your foundation trench, project a line outwards and downwards at 45 degrees from the bottom of that trench. Your excavations should not pass through that line. If you are digging 2.2 metres away from the foundations, then even with very shallow foundations, you would need to be more than 2.2 metres deep before you would cause concern, so I think your 1.5 metre hole will be fine.

We have a sun pipe in our house and it does its function of illuminating an otherwise dark space very well. But I agree it would take a lot of detailing to get it completely air tight, and it is bound to increase heat loss. I guess the question is whether the gain from lighting a dark space is worth perhaps a slight reduction in the building's performance?

In a case like this, they should have the power to grant permission with an expiry of 12 months. The builder did say it was URGENT didn't he? Then if they re apply after it has expired, refuse it because there clearly was NOT a need after all.

What took the 4 years? getting planning? or finding a buyer?

I understand the process is simply one of registering an existing system and is pretty much a formality. When we built this house in 2003 there was no requirement to register it with SEPA. I believe it is the same form we used to apply for their discharge permit for the new house, just a different box to tick.

It sounds like an Ecocent for summer use (to help cool an overheated house) would be a good thing, and something else for the winter? but that's duplicating equipment so probably not viable.

I have not heard of a blanket law requiring all septic tanks to be replaced on the sale of a property. But certainly up here, SEPA have the power to enforce a change. One of the houses in our road, the old, big house, had an old concrete septic tank (in next doors garden!!) discharging to the burn, and following a complaint and investigation, SEPA ordered them to replace it with a treatment plant, that is now located in their own garden, It seems this action is only being taken with tanks discharging to water. I have never heard of a case of a septic tank draining to land having to be upgraded. Perhaps this is ammunition to renegotiate the purchase price?

I don't want you to think I am obsessed with the things, but part of the thinking of buying a static caravan is when it's done with for habitation, it will remain and become a work space. I won't call it a "man cave" as Kathy will use part of it as a studio. 28 square metres of workspace for £4000 or £143 per square metre. you wouldn't get even a rubbish shed that big for that much. And we will keep the loo, and probably the kitchen sink working in it so you can make a brew or have a pee while working (the shower will be taken out and become a storage space) I will probably at some point fit some more insulation and wooden cladding around it, and a better roof so it looks more like a shed and less like a caravan.

Do you have any test equipment e.g a multimeter? I would want to check the earthing to that switch, and the lighting circuit in general. just because there is an earth wire connected to ths switch does not mean it hasn't fallen out somewhere else along the chain. If you can't test it yourself, get an electrician in. I don't know who fitted the metal switches and don't want to cast doubt on your ability if it was you, but the house I have been working on this week is turning into the house from hell. I started out doing an EICR and the first 3 light switches (brass) that I unscrewed had loose wires, in one of them one two screws had completely fallen out of the terminals and were sitting in the bottom of the back box. What I am saying is some DIY electricians are frankly dangerous and may have left the whole lot unsafe. If the front plate was earthed properly, I would not expect a situation where you could get a shock from it. If you do get an electrican in, tell him you want the earthing checked at ALL the metal light switches and light fittings. A normal EICR only calls for a sample to be inspected and tested, though in the case of this week's job when it became clear that the first 3 were unsatisfactory, on that house I am checking the lot.

When digging my foundations this time last year (it was wet then as well) I used a submirsible electric dirty water pump to pump the water out of the trenches. For all the complaints I have about our lousy soil, none of the trenches ever collapsed.