As a concession to accepting the impending build of my expensive workshop, Mrs J has asked for a lean-to greenhouse. How could I refuse...
Here's the dwarf wall, It's 4725mm long by 2165mm wide made from coursed Northamptonshire ironstone and mortared with 2:1 sharp sand and NHL 3.5 hydraulic lime cement. It's not perfect as I'm no brickie but it's level and my wife is very pleased with it. It's on a re-enforced concrete foundation then a row of 7.3N blocks then a row of engineering bricks that I already had in.
I doubled up the door gable walls rather than build pillars as it was easier and will be stronger still as I fitted a healthy number of ties betwixt both. The whole thing is fixed to our neighbours outbuilding using wall ties; This building is a converted pig sty that we rather bizarrely owned half of (it's all sited in their garden), so we did a deal with them to give them our half (we only stored logs in it) and blocked off the doorway. The whole building is a pig's ear of wonky brickwork (forgive the pun) and I had to rebuild the left hand corner which was badly damaged by rain ingress and subsequent frost blown bricks; I also had to replace the old Birtol guttering that had been fitted without seals, and also fit eaves protectors under the old slate work. So the lean-to wall looks a tad 'rugged' shall we say, but as it will soon be covered in Mrs J's lovely tomatoes I'm not too bothered.
I will lay a french drain in the trench below the front of the walls just to help take rainwater away, although gutters will be fitted.
I plan to lay a quality geotextile over the floor then sharp sand onto which will be old quarry tiles we rescued from an old 1980s fireplace (they were most probably original tiles from the old scullery (now utility room). Either side of the quarry tiles will be infilled with purple slate pieces rescued from the renovated garden.
So the next step is to fit the window sill tomorrow then build the front frame and openers as a solid frame to screw into the sill. To cut down on cost I'm using reclaimed 4mm horticultural glass so I'm dimensioning the whole thing in a way that keeps glass cutting to a minimum (except the openers of course). I am watching MikeGs post with great interest to see how he fits his glass.