So it’s time to jump back inside to do some more of the internal alterations – or maybe we can construe this as an external alteration seeing as we are about to take out the corner of the house up to first floor level. In any case, this existing external corner will now become internal and part of the kitchen area.
This is probably fundamentally the most difficult and vital part of the job as much depends on how we carry out this alteration. From the initial conception, the structural design, the beams that are to be used and the way we implement everything to ensure a safe and effective operation of works.
So let’s get on with it:)
Firstly we assess everything and look at how we are going to support the structure before we even attempt to remove any masonry. Remember that all masonry on the corner of the house is load bearing and has to be correctly supported. We cut out pockets in the masonry and support the building with a number of strong boys on both the inside and outside. We also prop the first floor joists with timber running at right angles to the joists.
We want to ensure that we have everything tight and that there is no margin for any structural movement whilst the alteration is carried out. Once all propped we remove the masonry starting with the rear external elevation of the building first. This will allow us to get 2 large 203 x 133 pieces of steel in which are to be bolted together. The same beams will also receive 2 no. 178×102 steels running at right angles which will be joined by both cleats and bolts and will also be welded. The bolts for your information will be high tensile bolts capable of withstanding the load.
So here’s the corner propped