Lean-to workshop on existing concrete base
Discussion
I'm in the process of planning a workshop/utility room to replace this tatty effort below
There is already a thick concrete slab in place, presumably laid in preparation for (or remains of) a garage.
To build the workshop, I'm going to build up a single course of brick and then build stud walls on top, attaching the sole plate to the brick (with a DPC in between).
Should I use engineering bricks or aerated blocks for this base course, given that it's main purpose will be to keep the timber off the ground? Either approach will provide plenty of strength.
Many thanks
There is already a thick concrete slab in place, presumably laid in preparation for (or remains of) a garage.
To build the workshop, I'm going to build up a single course of brick and then build stud walls on top, attaching the sole plate to the brick (with a DPC in between).
Should I use engineering bricks or aerated blocks for this base course, given that it's main purpose will be to keep the timber off the ground? Either approach will provide plenty of strength.
Many thanks
Ok, so either are just as good. Block it is, as I was planning on painting them anyway.
One further question re: the roof. I'll be using 6x2 timber (spaced at 60cm centres) and bearing in mind that it'll only have to support a layer of OSB and some felt, would a span of 4.4m be ok, or would I need to support them halfway along?
EDIT - Google tells me that 6x2 at 600mm centres is only good for 2.97m) - back to the drawing board....
One further question re: the roof. I'll be using 6x2 timber (spaced at 60cm centres) and bearing in mind that it'll only have to support a layer of OSB and some felt, would a span of 4.4m be ok, or would I need to support them halfway along?
EDIT - Google tells me that 6x2 at 600mm centres is only good for 2.97m) - back to the drawing board....
Edited by option click on Friday 13th August 16:09
Difficult to see how all the levels will work out but if you want it to be dry, the whole area should be covered with a waterproof membrane (DPM) that sould go up over the top of the bricks to meet the brick DPC - as if you were building a pond. Highest exterior ground level should be at least 2 bricks below DPC. If you build the brick base as a twin (or even cavity + insulation) wall, you can take the DPM behind the inside leaf, up and over the exterior leaf at DPC level. Then lay a screed or slab over the DPM inside (with insulation underneath if you are likely to heat it).
If this were a conservatory it would be exempt from building control, not sure where you stand with an attached workshop. Might be worth asking the Council or checking the gov. planning portal.
If this were a conservatory it would be exempt from building control, not sure where you stand with an attached workshop. Might be worth asking the Council or checking the gov. planning portal.
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