zoothorn

I know but you know I don't have section drawings etc etc, you know this is being built via a Build Notice which doesn't neccessarily need them if a builder is competant & experienced. Its like saying 'well normally a room is 2.7m high'.. its only tutting at me. I'm totally regretting the decision Ive made, sure, but please don't rub my nose in it. This should -never EVER in a month of sundays have been wrongly/ too deep dug by 350mm. It has been, due only to haste by no2 & not looking at the plan. Not by anything I've done.

I know but I don't have the light to take a pic of my tape measure now. Or a phone/ cam. I can't see how my pointing at 11cm would help. At the moment the groundwork's done. It does not have insulation or scree. I have is a concrete surface onto which insulation will go, & a dpm (dpc?) layer in the outer perimeter. I see the dpm/ dpc is 11cm cm above the surface. Between the surface & the ceiling, I measure 2.2m. I'm trying to establish what at the world's most minimum I can get away with to satisfy B.Regs, in terms of the isulation + final layer.. to scrimp every mm I can because of this appalling situation I'm in. Then I can find out what my lower room H actually is.. instead of being lied to by a fkn cowboy.

Is there no B.Regs minimum point, that the FFL has to be, relative to this black thick dpm stuff sticking out?

The thing is Ive got the dpm layer (black thick stuff) 11cm above the surface. Ive got 2.2m between this & the goddam ceiling truss things (which have to be pB onto). Im so sick of this H issue!! promised 2.35m, then told 2.2 today, then in acutality its maybe 1.95m!!

65-70mm??!! omg I cant cope with this. I'm gonna have to pull the job/ lawyers etc. its an utter fkn disaster.

Can someone tell me where the FFL has to be relative to the dpm sticking out the wall next to it?

Can someone tell me whaty thickness scree is typically? I guessed 40mm

Hi BigJ- FFL of extention on the plan is 1 step, below existing FFL. What's been done, is 350mm extra -ontop- of this. Why? a mistake, clearly so. I anticipated 2m H, this is on my plan. I was told tho, once I asked why the +350mm? "oh all fine/ it'll be added to the lower room H". Altho not what I specified, if I were to gain 350mm.. then I could make this addition 'useful' (tho a pain & expense to refashion ground around it). But what's been built is 2.05m. This 'extra' hasn't happened. The extention is simply 2 storys, access -only- via a knock-thru from master bedroom, into top room. This on plan is a small step, now its grown to 450mm. Btm room door to outside only. I do not know- & this is my current HUGE concern- if I have enough room for a full H door between now. Because the position of the lower room ceiling/ dividing floor/ & critically the floor level ontop has all shifted down 350mm.. I cannot establish what my top room H will be. I'm outside panicking trying to measure xyz in the dark: I'm panicking I'll not have enough ceiling height in new room to connect between via a normal H door.

Hi chaps, groundwork having been done (+350mm too deep, & my concerns remedied by this extra being "put onto the lower room H" via a call I made- ok fine/ tho why this mistake still unknown). Today 1st day of Timber Frame build: chaps suddenly appear 12.30pm. I was told monday/ tuesday only yesterday by my builder.. so why they (4) all suddenly turn up 12.30.. I'm querying. And problems are continuing. The lower room was done in 3rs, roof trusses on. 1st I asked my builder re. what H are we aiming for the lower room? (altho already established on the call ^ at 2350mm: the mystery extra 350mm added on to plan's 2m). I repeatedly asked about the room H today.. "2.2m" (so 2350mm now n/a). I was shown 8x2 canadians "so we can make up/ shims". Aha ok. 2.2m I thought.. right I can just about accept.. but TOTAL MIN as now its very concerning as to the upper room's H increacing > balcony lowering > the step-into this room increacing.. & the roof lowering??? Once they'd gone I measure: 2.2m it is to trusses.. but without floor insulation & scree or ceiling pB. Now I feel like I'm being played like a fool, &/ or outright lied to. So 100mm insulation +40mm scree(?) +10pB = 2050mm. Its extremely low in here. I was told & I was insistant etc this would be so.. this room H would be 2350mm. All total bllx to cover for innitial mistake. The trouble is now my trust is shot. As to the build its way off my plan, not rectified by adding the 350mm on my lower room H, & most of all (as I assume will happen) IF the upper room's just made to the orig plan (regardless of the extra 'mystery' 350mm I was told "all fine" only as to a reason why it occured).. ie 2300mm.. the whole roof will be 350mm short, so A) the step into it is now @ 450mm (my plan: 1 step) & the most concerning thing, B) the door into it will be ~& I can only approximate here~ 1650mm max.. which will not pass BRegs, & be awful to have to duck to use anyway even if were to be done. All depends on the top room H. Discounting what answer I'd get now, I have to find out how the remaining sections might go (orientation).. basically try & find out what this figure is to be.. before they start.. & stop them if neccessary continuing.. or I'll be left totally fkd at the end. So yet another night without sleep. I cannot tell you how many times I ve discussed the critical nature of simply the two rooms' heights with my builder. 2 years of planning, design, chats with him, all down the toilet.

Good idea I'll have a hunt. Thanks all. Apparantly TFrame put up monday/ tues now- builder's just been, 5mins, huge great tarp on.. but alot still exposed. I Q'd him on room H. Lower one 2.2m.. top one 2.4m he said. The opposite to phone call t'other day (& this way preferred I said/ good etc.. oh well) & 'we can jiggle it about to suit' which is now n/a as all sections here. So you see I'm at the mercy of what flows with him. Ok so thread done- thanks for help yet again chaps. Could be worse: this is the frame of mind I need to adopt. I'll do a Zoot Extention GO! thread now, with progress/ pics/ less spiel & less stress (!.) now the H issue finally answered (if not ideal).. heck it might even get my mojo going.

Ok so there's no problem if this lot is left until monday, with heavy showers/ rain for 4 days between? no urgency to tarp it all?

I've got pretty obviously my dividing floor/ ceiling right in front of me (200mm.. as I specified!). Does this get fitted in after both rooms' inner walls are made.. or after lower room? If after.. it could be just the thing I need to help.

Understand this.. but I guess I don't know yet what the room H are now established to be, or how/ if I could measure any sections staring at me to find out. Tarps.. honestly it like 3 or 4 huge tarps/ £100. I'll be angry if I see this lot sitting here still on friday with nothing having been done.. then I'll be forced to go buy them. How rain resistant are TF inner courses anyway? there'll have been plenty of builds lashed with rain before the cladding /outer skin done to make it weatherproof. All roof tiles there too.. & last dry day just looking at it/ frustrating.

My heights figures have been thrown out the window Joe, totally n/a it seems anymore. "All done, all measured up". I cannot counter this from a builder 40yrs experience in his proud country where I'm one & don't know anyone (not a chance/ not worth it.. or all this kit will be left in the rain for week upon week). And now all wall panels/ whole kits sitting in the front gdn waiting for 3 days rain to soak it, not a word of when it might be done let alone wtf heights my rooms, therefore the dividing floor, the knock thru door, overall roof H, & therefore my balcony height.. will actually end up being.

Yes but if my builder's gone his way, or just forgot what I said/ we agreed either deliberately or genuinely forgotten (on a call, once I asked why the +350mm I couldn't get an answer to apart from "TF all measured up/ done" he assured me this extra 350mm would be added to the lower room.. but in words only/ nothing written) my confidence is about 10%: not in terms of the quality of work, but in terms simply of adhering to my heights. The width is almost irrelevant, if 10cm less.. MEH. Height, in my lowish cottage, is utterly different. A room can be ruined if 10cm out. This is why I spent 6 months on these 3 dims. Ground floor. Ceiling/ dividing floor. Top room ceiling H. 6 months, 50mm critical. All shot in one afternoon's haste.. & I can't sleep properly as I don't know what's next/ & my work affected, as a direct result of it.

Peter- I'm still not quite getting the floor idea. This floor's in 3 sections I can lock together. Timber batons underneath, fixed across each section, whose ends stick out.. & the wall sits upon these in 4 or so places (you can see on my close up pic). How the cabin walls sit upon the back & front.. tbh I can't remember (my damn cam didn't work all day). If I substitute these baton ends (the load points) for your 3x2 idea laid flat, & remove the batons from the floor & re-use the floor wood (not easy with 100 nails tho), I have the cabin walls on the 3x2, & I can fix my floor to the excess bit inside. The 3x2 is 47mm high, celotex is 50mm. So if I were to 'fill' the inside with c'tex I need to make up this 3mm deficit. That's my 1st head scratch.. unless I'm being thick. My 2nd head scratch is if I do this, my floor will fix to perimeter (3x2) fine, once I somehow make up this 3mm deficit that is, but will not be fixed over the whole floor area but 'just sit on' the c'tex. Is this basically your idea? or would I need some 2x2 cross-batons for the floor to additionally fix to (+ the 3mm of something to make up the height), then the gaps between filled with c'tex. It seems complicated & therefore I'm very likely missing something.. or being stupid.

This is what I assumed. But if I have a series of rectangles, & it can vary re. construction orientation according to dpmiller, I cannot establish if -in this case- either room height will be 2.4m or 1.88m. These two figures I measure consistantly in one pile (presumably one room), 2.1m I measure consistantly in t'other pile. I was hoping it was "sections always in portrait, joined together".. so I could then rest easy by way of one room being very likely 2.4m. The lower room. This is actually 10cm more than we discussed (& squeezes my top room H & squeezes the access door) into critically tight dimensions. This build is -so- tight with regard to the two rooms sitting on each other, bc I don't have alot of height onto which the extention is to be built ylou see. I spent nearly 6 months on these 3 super-critical placements to get the figs I stipulated on my drawing.. the +350mm has SO scuppered both my design (& my confidence in what's gonna happen next you see) of the superceding two room Heights. We're talking 100mm critical, even 50mm critical.

Yes there will have been comms between the TF Co & my builder (whether that means supplied drawings I don't know).. but this is wales, & this is being built the "unusual" route, via a Build Notice = no supplied drawings to me/ a "I don't need to know" situation. No communication (valley hills prevent mob signal 90% of time). @PeterW I'm trying to establish what height my two rooms will be (from measuring the wall sections).. ridiculous I know, but there we go. My builder's already taken the reins re. my depth/ oversaw this, so I'm naturally extremely wary about anything else he might have overseen re dims. We discussed thoughrally about the 'mystery' +350mm added to the lower room, & agreed it will be added here, but after the 'mystery/ mistake' I'm extremely wary about the super-critical H of both rooms.. & naturally my confidence is shaken.

No supplied drawings.

Hi chaps- I came back yesterday to find 4 piles of timber frame sections, roof trusses etc all ready for my extention (groundwork done). No-one on site today.. Most wall sections are rectangular. Q: which is typical of construction.. sections orientated in 'portrait' joined together, or sections in 'landscape' joined together? IE 3 sections in portrait, would look ~roughly~ like this: [][][] Thanks zoot.

Its made of t&groove 18mm timber planks.. 5" of each end rotten/ bc not enough felt to wrap around lip. I was surprised of overall weight of whole thing- bit worried if Ive got sufficient support. I think maybe the frame sides are ok.. But the back & front cabin beams I'm concerned about: bc back one (on far stream side join) is just screwed onto the long side end, & front beam across @ plinth only screwed to side beam (same far side long beam). The top side have support directly onto the plinths (my placcy riser underneath their ends).. but stream side, they're just supported by 2 turbo screws.

I dismantled it today in 7rs flat out (not a cuppa offered or a word all day.. £200 deposit last week & £400 paid y'day [+vat too which angered me as its used] so £600 total inc delivery), but, I found it more rotten than I thought in places, tbh I think I've made a mistake.. even if its 1/3rd the cost of a new one. Oh well live & learn. All felt needs replacing (knew unlikely I could re-use/ no major deal), one small front wall section badly rotten tho, rotten roof edges (maybe swizzle round but then roof ridge will have poor solidity/ protection) some water ingress/ some wet between sections generally. Door badly fitting, & 3 small glass panes awol. But the floor's dry, as are interior walls (alot of spiders- good sign) no evidence of damp or water ingress inside generally. The (T&G) floor has 3x2 batons under & these are what the walls sit upon, & what the floor's nailed to. So the floor is inside the walls. under Batons wet where contact with ground. The floor's made in sections/ can be split into 3 (the batons go across the LHS of floor, then the middle floor area has batons below, then the RHS like LHS extend just beyond floor so wall sits on). So I've got to figure out what to do, to get my insulation below the floor.

@Onoff hi Onoff thanks.. yes I came across the 1st clip last ev/ saw a few YT ones too. The floor still odd- I read its an after-addition, on most/ standard jobs/ IE put in afterwards. But can't see how this is feasable. Anyway I'm off to dismantle mine. Did last nogs this AM..

Do these lock-together cabins typically not have floors as standard then do you know? Actually has anyone's built one of these? I can't figure out even how they fix to the base/ guess I'll find out.. but how would I fix this to mine- I mean surely they're not just sat there via gravity alone, are they? with my big FO front spoiler facing the Irish sea?

Boy, an hour of help from one of you guys & it'd be tackled.. cheers tho Joe.