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About Ben100

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  1. The TRADA site seems to have some great information, but ~£500 membership fee is a little steep.
  2. Hi, is there a reference or UK standards document which details the fixing requirements for a timber frame house? For example nail types/sizes and method to use for stud to wall plate fixing? cheers!
  3. should be, but I’ve emailed the manufacturer to make sure.
  4. After some research I’m planning to go with the ‘140mm 3.6n Thermalite Shield Blocks’ as I come out of the ground below and above DPC. They seem like a good fit for what I need, thermal insulation, water resistant, lighter than the dense blocks, etc.
  5. Interesting. I've been looking at these to address the cold bridge from the slab too.
  6. 4. I have a design for the wall build up (I'll try to upload the drawing later). Basically it's tanked in the cavity then filled with insulating/water resistant foam. The internal leaf on the inside also has a DPM running up it and into the blockwork above DMC. Another question I've been thinking about is is there a need for thermal insulation of the inner leaf to address the cold bridging from the slab/foundation. For this I'm considering changing from 7n dense blocks to a 7n thermal insulating block as I come out of the ground.
  7. As I need to fix the TF soleplate to the blockwork with bolts it would pierce the DPC. It might not be that big of a deal, but I'm playing it safe and running the DPC a block below where the TF soleplate and blockwork meet.
  8. Thanks for all the information guys. I guess I have a few question. 1. Below ground should I be using dense 7n blocks on both external (100mm) and internal (140mm) leaf? 2. As my structure is timber/steel frame the blockwork is finishing 1 block above DCP and moving to timber and steel, so almost all of the blockwork is finishing 1 block above DPC. Does this give me any chance to use lighter blocks or should I stick with dense blocks in this case? The only reason I'm really looking to move from the dense blocks is that they are heavy and hard to work with. 3. Another question I just want confirmation on. Is it ok to switch to red-bricks on the external leaf just below ground level for the plinth? Just for a better look. 4. And the last one (for now) What should I be using for the in-fill between the blocks below ground level? I guess a concrete mix of some sort? Cheers all!
  9. I'm using 100mm dense 7n on the external leaf below ground, then moving to brick just below ground level and up to DPC where the external leaf will finish. The example blocks I mentioned were for the inner leaf for the TF structure to sit on.
  10. Something like this?
  11. I'm laying the blockwork for my extension which consists of a large steel frame with timber in-fill. Most of it is single story with part double story plus roof/loftspace. The timber frame company have recommended 140mm blocks for the 145mm sole plate to sit on, which is fine. I've laid the first course using 140mm 7.3N high density concrete blocks directly onto the foundation and laid a second external skin as a plinth to DPC. I was about to start laying the 2nd and 3rd course when someone said that I was going way overkill using 7.3N high density concrete blocks and I should be using something lighter. So my question is, should I be using aircrete blocks instead of high density ones? This is taking into account that this is a masonry seat for the TF structure, and behind an external masonry skin plinth. cheers!
  12. This sounds simple enough as the ground is hard compressed sand/stone and I have all the point loads from the SE, which have the safety calculations built in. I’m more concerned about the required thickness of the pads as I’m not clear on how to calculate this.
  13. He's too far away, so I'd need to get a local SE to design then if I can't.
  14. Hi all, I have several steel columns in my new extension which are taking most of the structural load. The SE has given me the line and point loads, so I now need to calculate the size and depth of the 'pad footings' they sit on. I've looked around, but can't find this information anywhere. Can anyone suggest a method? Cheers, Ben
  15. My BC officer said just dig a hole 'roof area x 0.3'