scottishjohn

NO on top of the purlins will be the lid (flooring ) of the loft storage area -with all space below full of insulation

but they will be warm from the insulation surroundung them --so not a problem

new or s/h "z" purlins use full length or cut them into short lengths and fix chip board to them --would be a lot cheaper than loft legs to do all your loft I think just a another choice

as already said a picture of roof build up will clarify what you have As i understand it rafters then blanket,then battons ,then slates will make it a cold roof -as your insulation is on the underside of your roof ,so keeping loft warm and the actual roof would be cold ? the cold + damp area area is above your rafters? I am guessing from description that your roof is not sheeted with OSB on rafters --just space blanket draped across them and taped joints and acting as a water barrier as well ? confusing isn,t it a rough drawing of the make up of roof will make it all clear

I have it below my suspended ground floor to seal off the joists and stop heat loss from my retro fit UFH above when i do my yearly check to make sure its all taped up still i open up a litle corner to get my fingers in and it is very much warmer than the space below floor where i am sitting It does work .but is it as good as solid pir?--Idoubt it ,providing the pir is well taped and sealed but for some places its a good easy solution

ok --but that does not stop all the heat loss into your concrete floor , so what ever you do you should think about some sort of insulation beteween you and the foundations . have no doubts -- the ufh will work but not as good as it could do if you altered the floor and you still free up wall space from having rads

think that will not work well over time bitumen based could shrink as I suspect the bitumen part evaporates and glue probably will react with it

I would be nervous at the long term adhesion of tape to EPS without a primer coat . one novel idea car plastic stone chip --spray joints with that --its water proof and never comes off and is water based https://www.amazon.co.uk/Gravitex-Professional-Protector-Application-Protection/dp/B01M1K65KC/ref=asc_df_B01M1K65KC/?tag=bingshoppinga-21&linkCode=df0&hvadid=&hvpos=&hvnetw=o&hvrand=&hvpone=&hvptwo=&hvqmt=e&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=&hvtargid=pla-4584413738286283&psc=1 try some on inside something like a box made from eps +FILL WITH WATER or this one aerosol cans https://www.ebay.co.uk/itm/Black-Stonechip-Stone-Chip-Paint-Coating-Underbody-Car-Truck-Van-500ml-x-4-CANS/223463894112?hash=item34077c6c60:g:2W4AAOSw4ARcnVuH no tape needed then

a thick coat of pva or emulsion on eps and let it dry -so tape of choce will then stick to that ?

It will work fine -just that you will be loosing more heat downwards than a thicker insulated system --but it will heat room well

technically you could use a thin system and only lift floor level by 50mm - BUT you will be loosing heat into the concrete without a thick enough layer of insulation a bit of grief now will reduce your heat losses for ever -- do you know for sure that concrete floor has a vapour barrier below it and coming up the sides above the level of the concrete -isolating it from walls probably not at that age --so the right thing is to start again

I have always lived in soft water areas and i notice the opposite if I go to hard water area - could it be the softner is OVER softening the water? are they adjustable

i know nothing about 3 d printing --but that failure looks very simply that the material is not strong enough or too brittle Is it a case like nylon where you need to boil it up in water to stop it make it more flexible+ stop it becoming to brittle?

the reason cars have been getting largerover the years is encaqp testing --cars have to be bigger + heavier for all the safety measures internal crash bars ,air bags etc all take space so if to get same intewrnal space car gets bigger

can you get 6 x3 boards ? thats what my 74 year old plaster master uses now if he got to do ceilings

i do not disbelieve you ,but the mot s must be carried out on pit with a jacking beam and swivel plates- must have been doing them for a long time with no change in ownership to still be allowed to have a pit - that will be bombed out if garage changes hands

2 post ramp was never an mot ramp all 4 posters or a pit now 4 posters with shaky plates for one man MOT operation for any new MOT stations

the 2 posters are for sale -- only me here now -4 poster is coming to new house when built but £600 is bottom line --as they are not that old and proper ones with bottom frame work ,so suitable for floors that are not that good seen more than one 2 poster that just have the post, and no longditudinal arms on base , pull out of the floor when hairy arsed mechanic is swinging on a gearbox to get it back in scary stuff

If i could only have one ramp it would be a 4 post with wheel free every time if there was a choice I got 1 x 4 post (bradbury) and 2 x (hoffman) 2 posters they have motor that can be single or 3 phase

UFh will stil be best way even with mains gas

A friend of mine has a stand alone garage wall height 10ft 6" he has a 4 poster ramp in there which has all his workshop equip on it,since he got rid of second car put ramp up --car drives below it and you got 5ft+ of space for stuff on top of ramp --with that or another car s/h four poster ramp --£500- £1000 that is a cheap second garage

If you really want a transformer garage then dig a basement under it as your junk/service room I am suprised with the space premium in modern house plots these days that more do not have a basement for junk+services

will hessian not hold water when it gets wet and let it through and then freeze plastic sounds abetter choice I think the idea of hessian is to allow it to breathe and let water evaporate --can,t see much of that going on for ther next few months if the hessian is soaked with rain

not going to dry up at all this winter -- and if it gets wet it will melt and run down the stone work and stain it -- I suspect you need to cover it with sheet to stop that happenning . frost can only cause damge it there is free water to freeze

Is this the right time of year to be doing lime mortar building ? Iwas ubde the impression it was a summer job building with lime mortar,due to its drying time