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by Cala Sona
Wed Sep 23, 2009 12:57 pm
Forum: Groundwork and Foundations Forum
Topic: Concrete garage floor
Replies: 5
Views: 30244

The trouble is that 100mm hardcore has already been laid down and compacted (I should have explained that) and I would wish to avoid digging it all out again or even scraping 25mm off the top then having to hire the compactor again! Thanks for the the suggestion of using 125mm. I had already conside...
by Cala Sona
Mon Sep 21, 2009 11:07 pm
Forum: Groundwork and Foundations Forum
Topic: Concrete garage floor
Replies: 5
Views: 30244

Concrete garage floor

I am extending a single skin block built garage to create a double garage, also using blocks. The ground below about 400mm is free draining, well compacted stony soil, on which I built the foundations 600mm wide excavated to 800mm depth with 100mm hardcore and 100mm x 600mm wide concrete. I was also...
by Cala Sona
Mon Nov 10, 2008 9:51 am
Forum: Builders and Builders Merchants Forum
Topic: Will concrete dry in the rain?
Replies: 4
Views: 12022

Concrete sets by chemical action, not by drying out. In fact concrete that dries slowly in damp weather will be stronger than concrete which has dried quickly on a hot day.
by Cala Sona
Sun Oct 26, 2008 11:12 am
Forum: Builders and Builders Merchants Forum
Topic: Are all builders the same?
Replies: 1
Views: 4155

Are all builders the same?

We had plans drawn up for a straighforward loft conversion to add two extra bedrooms and a bathroom to our bungalow 18 months ago. Four builders were asked for a quote. Three turned up, talked a good game, none bothered to quote! I tried again with another five. Four turned up, three quoted, but one...
by Cala Sona
Sun Oct 26, 2008 10:16 am
Forum: Electrics Forum
Topic: wiring to operate a light from three or more switches
Replies: 3
Views: 3638

Thanks for posting up the information Eric. Unfortunately I can't really follow the diagram so I think I'll just call in a sparky!

R.G.
by Cala Sona
Sun Oct 12, 2008 8:47 pm
Forum: Carpentry and Joinery Forum
Topic: Joist hangers
Replies: 2
Views: 5771

Joist hangers

The engineers report for out loft conversion requires a double bridle of 195 joists to support the floor at the side of the new opening for a staircase, using hangers at each end. The problem is that I can fit one hanger but that makes it impossible to fit a second hanger next to it because the flan...
by Cala Sona
Sat Oct 11, 2008 4:44 pm
Forum: Electrics Forum
Topic: wiring to operate a light from three or more switches
Replies: 3
Views: 3638

wiring to operate a light from three or more switches

I can find information on how to wire up a circuit for a light or lights to be operated by TWO different switches, but nothing on how to do it for a light operated from THREE or more switches. Is it just a case of duplicating the connections of the second switch at the third switch and so on?
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