Category: Entertainment Room

The ground floor Entertainment Room, concrete sound reduced walls and ceiling.

  • Setting out the Entertainment room

    For the start of our new week, for the start of the work inside the house, we got on in sorting out the area where the Entertainment Room is situated. There is going to be a concrete shell to provide some level of sound proofing so the rest of the house is not disturbed by crazy noises, loud bangs and awful discordant sounds from musical instruments etc.!
    But we have to make some adjustments to the framework around the window first, to make room for the 100mm wide concrete blocks that will go up on either side of the window to form a barrier to keep the noise in. We moved a pair of inner (63mm CLS) legs sideways 150mm and glued together three layers of the 63mm CLS timber horizontally going over the window that forms the lintel to hold up the first floor. Also, we sliced away some pieces of the insulation to make room for these concrete blocks too.

    Setting out the Entertainment room

    Gluing-lintel-reinforcements

    Setting out the Entertainment room

    C-Window-ready-for-Entertainment-walls



    Next, we decided that we needed a larger tool to help mark out the layout of the stud walls (see Created Large Right Angle Framing Tool ) and using this piece of equipment, we marked out the outline of the wooden stud wall that surround the concrete shell.

    At this point, we put out our laser level gadget and proceeded to measure the relative height differences around the perimeter of the room, to judge where the highest and lowest points were. We had set of numbers ranging from 108 to 122mm which means a different of 14mm between the highest spot and the lowest spot.
    Then, we measured and cut up a series of 89mm and 63mm CLS planks to form the bottom layer of the stud walls where we drilled clearance holes through and then using our SDS mains powered machine, drilled the required holes into the concrete, ready for the self-tapping concrete screw bolts.

    Setting out the Entertainment room

    All-fixing-holes-drilled

    Next, we blasted all the holes with compressed air to clear the drilling rubbish out, collected up a trug full of soft sand (from our own sand pit, using a medium holed sieve to avoid larger stones) and got a bag of cement we had lying around that hadn’t gone hard yet. We started with four scoops of sand and put in two scoops of cement, a couple of finger pinches of fine plastic fibre and got it nice and moist. But we discovered that there was too much fibre in it, it was clumping together!
    So, following the earlier survey results, we decided to put in 2mm of mortar at the highest spot, just enough to wet the surface and sit the plank down. We put in enough underneath and then thumped the wood down along the length and using our laser level machine again, settled the whole plank flat. This spot is then the reference point to get all the other pieces of timber footplate all at the same flat level. This was duly done and left it to set hard overnight.

    In the morning, we came along to scrape any excess mortar away, to tidy up the surfaces on the timber and on the concrete alongside where the concrete blocks will be placed. The next task was to slice up more planks to form the second layer, making sure to overlap all our joints to reinforce the total strength of the footplate. We proceeded to drizzle PVA glue over the wood and screwed the two layers together.

    Setting out the Entertainment room

    Double-wall-plates-fixed

    We had finished by early afternoon and we spent the rest of the day looking at making another piece of equipment to help us produce regular and precise lengths of timber, for legs, posts and top plates that will form the internal walls of the house.

  • Concrete Material for Sound-Proofing Shell for Entertainment Room collated and Ordered

    After buzzing around several different suppliers, all across the country, looking for pre-stressed concrete beams and dense concrete blocks (the heavier 20kg ones), we chased down various prices, ranging from the wow high price to a super low price but a heavy delivery charge (eeek!), we have finally settled an agreement with our local builders merchants Jewson, to supply us with ..

    • 10 concrete beams
    • 650 heavy dense concrete blocks
    • A pile of soft sand
    • Some bags of cement
    • A few large heavy paving slabs
    • And a concrete lintel (for our doorway).
    • 50 lengths of 89mm CLS timber

    We managed to get a very good price for the whole lot, that is a fabulous as we get the benefit of having our material delivered using the standard truck with a crane to help unload the 12.7 tons of stuff! It shows that it pays to spend time shopping around even if you end up back at your local business (but you know what price to negotiate too) Phew!

  • Ordered Concrete Beams and Blocks plus Sand and Cement for Entertainment Room

    Today, for our Entertainment Room, we calculated the number of concrete blocks and concrete floor beams needed to build a sound reducing barrier around the walls and ceiling. There are twelve rows of standard dense concrete blocks, a lintel for going over the doorway and eleven 4 metre long concrete beams, the smallest one available (the 150mm by 120mm wide version) because it is just a false ceiling and not holding up any loads apart from itself. The concrete shell is approximately 5metres long by 4metres wide and 2.6metres high, just shy of the first floor joists.
    The total number of blocks is around 635 but we ordered 650 to have some spares. We also ordered a ton bag of soft sand and eight bags of regular cement and a concrete lintel measuring 1200mm long, 100mm wide and 65mm thick to go over the doorway, it is rated at seven kilo-newtons (7kN/m) and we calculated that the block and beam ceiling will be 3.6kN per metre , loading over the 900mm wide doorway. That means a double safety factor, without us having to do anything special, just the minimum strength of the lintel we selected.
    We have asked Jewson’s for a price on the whole job and we are waiting for it…