Showing posts with label concrete floor. Show all posts
Showing posts with label concrete floor. Show all posts

4 May 2015

Concrete floor

Once the plasterwork had been finished (see Render and plaster) we were able to sweep away the protective sand covering and get a good look at the concrete floor.  If you remember this is, in fact, our power-floated foundation slab (see Finishing the slab) which, in the end, didn't get power-floated quite enough.  To protect our finished floor during the blockwork and plastering we decided to use sand as a breathable protective covering (see Up we go).

It was looking good, the colour varied from greys through yellows and greens to browns, it looked quite organic and stone like in places. 



Can you see the trainer footprints?  


Around the edges it was a little rough but nothing a bit of sanding couldn't fix.






Paul tidied up the edges with a sander and then I hired a rotary sander (hand-held one) and over a couple of days went over the whole floor until it was pretty smooth.

The place where the concrete was roughest was in our ensuite bathroom area.  Andrew had a go with a monster, heavy duty sanding machine with diamond-studded disc, but the results were disappointing - it had taken away the grey colour and left scratch marks everywhere.  Back to the drawing board.






Sealing the floor was a disaster.  I used ECOS Organic Paints Concrete Sealer.  The first coat was applied thinly using a roller, as directed, and left to dry for more than 24 hrs but after this time was still tacky. The coverage was very poor, uneven and mottled looking, despite a fastidious and careful application. So after 48hrs another coat was applied this time using a lambswool applicator. This appeared to go on much more evenly.







But again the tackiness was a problem.  We thought that perhaps if we just used the floor as normal, everyday dust would eventually bring it down to a dry finish.  However the floor remained sticky. Anything left on the floor stuck to it- stools, carpets, paper, etc. Also when water spilt on to it the coating seemed to dissolve back to the unfinished concrete.  






I asked politely for some customer support from ECOS but was disappointed.  I was told after numerous emails, including being told that my application of the product looked like a joke (!), that they had never received a complaint about the product before so there must be an issue with my concrete...won't shop there again.


We have gradually scrubbed down most of the floor to remove the coating, there are still a few stubborn sticky patches in difficult to reach spots under beds.  We haven't yet experimented with anything else, but the floor doesn't seem to be suffering for it. We walked barefoot on it throughout the winter and it was a lovely ambient temperature due to the rarely used underfloor heating and the fact that it's a large thermal mass with super-insulation underneath, so it holds the heat.




Looks yellow and green here but isn't!



It worked out fine in the end.

13 Mar 2014

Up we go...

We are now officially out of the ground!!! Hip, Hip, Hooray!







The stepoc, special shuttering concrete blocks, was delivered to site for the back wall of the house which will sit into the cut. Andrew and Paul are now experts with the old Stepoc and it was faster to erect and I'm sure they won't mind me saying a lot more
evenly laid than the retaining walls. This stepoc is the smaller block size which means that the corners knit together and so we have less concern about blowouts when the concrete is poured.







After a lot of thinking, reading and looking at the concrete floor we've decided to just cover it with a layer of sand to protect it.  It takes a month to fully cure so if we cover it up with boarding we could get permanent markings from the uneven drying and the condensation build-up on the underside.  The floor may end up being even more Wabi-sabi than before.  Wabi-sabi is a japanese philosophy where you embrace imperfection - I'm totally up for that in all areas of my life.  I'm even going to say in a totally poncey way that maybe the floor will just be a physical manifestation of the story of it's creation and journey...yeah!

Once that rear retaining wall was built and the concrete poured, our bricklayers arrived to take over.  In just two days it looked like this...
















We have walls and the beginnings of rooms.  Things have shrunk and I'm getting a little worried about how small some of the rooms are feeling, particularly the family bathroom.  But hey, I just have to have a good talk to myself.  We always knew that we weren't building on a palatial scale, this would be a decently sized but modest family home.  I'm forever reflecting on how my role as a mother seems to consist, in no small part, of cleaning, moving, tidying and knowing the exact location of everyone else's STUFF! Less stuff, better life!  Dimitri and I travelled the world with a backpack for two years and we promised when we returned that we would have less, but invest in things that were better.  The arrival of children has meant though that our possessions exponentially increase year by year.  Enough! Having smaller spaces will force us to keep on top of all the stuff and have less. I can sense my mother smirking in the background - 'We'll see dear'.







With the rear retaining wall completed, Liquatek returned to do the final part of their waterproofing.  Installing the John Newton Geodrain.  Basically it is moulded layer of plastic which has a textile layer bonded on top.  So when water comes along through the ground it passes into the cavity between the textile and the plastic and runs down into the land drain at the bottom. Simple, clever and costs over £5000 (that will have got my Dad going, he's a builder...).  It's a lot of money, but it has to be done and the warranty people, mortgage people and everyone else insist on it and it has be done by the people who can guarantee it.  Good business to get into i would say...






The mortgage company finally released some funds so we can proceed full speed ahead (until we rapidly use up those funds and have to go through this process all over again)!  It is a really opaque process.  The surveyors inspected and signed certificates to confirm the work that had been completed and we submitted copies of all the invoices we have paid to date to the mortgage company, in order for them to assess the current value.  They calculate the current value and then can authorise funds to a maximium of 75% to be made available.  The figure they have chosen as the current value seems quite arbitary to us.  It is not what we have spent, but a lower figure.  We asked for clarification of how they came to their valuation figure i.e. what adds value, but got no satisfactory response.  There is no transparency as they don't have to explain anything to us. But a better understanding of this process would help us to understand and manage the cashflow. This is very old school man! I think we are just supposed to be grateful that they have deigned to lend us any money.  But look, we're cracking along now and that's what matters!