65 Photos - May 26, 2012
Photo: pivo on venzelsquarePhoto: underground carpark ventilation with urban seatPhoto: Photo: view from 
my fav coffee (so far) in broumovPhoto: country road, take me there...Photo: road to the 'lom'- to some it is a sandstone quarry...Photo: the setting at bozanovPhoto: beautiful panorama with bad camera.Photo: trimmed straw walls to be curved on cornersPhoto: needs a 25mm plaster edge to give the render above the opening for the compost loo a good finish as wellPhoto: window details to be curved too, sides and above.Photo: Barbara explaining about stuffing behind the door post, the curved straw edge and where the plaster edge with the hessian is to goPhoto: kuba's experimental 1-bale wall detail with wall tied to adjacent window post and a chestnut stick on outer side only...Photo: lime pit (2x2x1m). has two chambers (2x1x1m), to allow left over half of lime to continue carbonating while we empty the other chamber. would be good to line pit with eg plastic bin liner to avoid drying out. keep lime from freezing in winter!Photo: boris cleaning our first lump of lime dragged from the low pit with a scoop on a broom handlePhoto: zuzana stomping with wellies and petr using the stick to activate limePhoto: barbara jones in her lime safety gearPhoto: preparing the first mix to Barbara's special recipe for this specific lime - 1 scoop of lime, 3 scoops of edgy sand (4mm), 1/4 scoop of waterPhoto: 3 scoops of egg white on 4 scoops of ground chocolate plus 3/4 scoop of waterPhoto: dig in!Photo: lime needs to be covered to keep moisture inPhoto: square edge of wall plate above round trim to straw building "corner" and temp support post to roof structure ready to drop onto finished wall - when ready.Photo: using the mean machine (name of Honsa's special three tipped fork?) to activate the lime and thus make it smooth and workablePhoto: final carpentry preparations and stuffing around framesPhoto: trying the cement mixer to compare to other mixing techniques (didn't go well for the c.mixer)Photo: Photo: Poland!Photo: holiday cottages (Poland)Photo: window frame going inPhoto: door frame going inPhoto: Photo: Photo: mix for second coat - the filler - 
use lime base coat plus handful of "long" straw plus extra waterPhoto: Photo: if too much straw, add more lime - not waterPhoto: rub it in and reveal the soft or empty bits - make the "faults" show so second coat can be used to fill in gapsPhoto: like so.Photo: Photo: the compression strap will stay on in this case at Kubas house (not enough weight on walls until roof is dropped) - cut loose ends off before covering with hessianPhoto: Photo: Photo: compression of bales under window via jacks wedged between temp timber and sillPhoto: the revealing layer reveals where straw was soft/loose - after second coat (filler) the compression strap should be flat against the wall. it will then be covered by hessian soaked in lime water, covered in thin layer of lime base coat - smooth out edges into second layerPhoto: tea break!Photo: Rae, tea break! Rae? Tea?...Photo: curved corner with second layer on in parts - see compression strap flat on wall, where gaps on wall are filledPhoto: Photo: Ondra with the water spraying device on his back, needed to keep the lime humid while setting (spray according to weather to avoid drying out)Photo: strip of hessian fixed to batten which doubles up as vertical plaster edge along door frame. 
Hessian will contain bulk of fill-in straw render curved in to round off wall into door opening.Photo: like so. plaster edge along bottom to be 2.5cm thick and to curve in to door opening with render. Here: although close, cover compression strip with separate strip of hessian!Photo: Photo: Zorka in window with plaster edges in place (no hessian)Photo: the Lime cycle in detail by Barbara Jones (in the Jumper)Photo: Photo: lovely weather is prerequisite for good work?Photo: Photo: walls to top floor (gallery) to be built of straw but not rendered but clad with burned timber (a la japanese "Shou-sugi-ban") last for up to 80 years?!) see also http://deckingnetwork.com/profiles/blogs/burning-timber-to-produce-shouPhoto: Barbara tapping on setting render to reveal areas where render has not bonded with straw (too wet on first layer, or not worked in properly...)Photo: render beginning to show drying patches where second layer is only thin.Photo: before final coat (lime base coat with short straw max 2.5cm mixed in) goes on, hessian is fixed to top and bottom on 2.5cm plaster edge batten (follow curves into door openings etc!)Photo: applying the final coat (throw on to maximise bonding with second layer) then rub in and smooth with single length (aluminium) edge scraping against top and bottom plaster edge timber simultaneouslyPhoto: use timber trowels (not metal) for lime render. metal is to strong and will push sand into wall and leave lime at surface-it will come off as powder if left like that.Photo: final final layer(s) would be 5 no. washes of lime/water 1/2 painted on to wall very thinly with big brush, 1 layer each on 5 consecutive days (repeat each year for 5 years then once every 5 years)Photo: short straw mix!Photo: