philnic

The detail is now slightly different as i'm hanging the joist with hangers rather than sitting on a wall plate. The bottom joist is a 47 x 200 joist, with furring's, then 150mm insulation, not another joist. Any suggestions on the cold bridge, if there is one??

I have the below detail for the 6m wide lintel above some new bifolds in my extension. The RHS goal post sits in line with the internal blockwork and has a continuous 6mm plate welded to the bottom to support the outer brickwork skin above the doors. I'm worried that this plate will permit cold bridging. I intend to dot and dab plasterboard down the wall and return in to the door head, but is this enough to prevent cold bridging through the plate? Do you have any suggestions or products to help avoid this, or am i worrying about nothing?

Ok, thanks. Looks like a full planning app then.

Hi, Having looked at the PD technical guidelines, my planned extension seems to fall between the examples shown for rear and side extensions. The original house is in blue below, with a side extension built in 2008 shown in orange. I'm hoping my new rear extension shown in green is covered under PD? I know the example on page 26 of the guidelines shows that a rear extension cannot protrude beyond the original side walls, but if the the previous extension already does this surely my new rear extension isn't restricted under PD? My scenario is slightly different to the ones in the guidelines. Also, my new rear extension wont be running in to the side or across the whole back of the previous extension, it just slightly straddles both the original rear walls and the previous extension rear wall due to a doorway into the orange extension (my new extension is replacing a conservatory on the same footprint which has a doorway in to the previous extension). I'm basically hoping that only the rear guidelines apply, which wouldn't include the half width rule. What do you think?