Guidance Booklet by Outside Rooms

More catalogs by Outside Rooms | Guidance Booklet | 9 pages | 2017-07-16

Ads

Page 7 of Guidance Booklet

how-to-build walling guidance on how-to-install your new garden walling products aspen stone bayfield regal stone diamond only 4 laying the second and subsequent courses make sure the top of the course that’s just been laid is free of debris then start to lay the second course. as you position each block, move it until the rear lip bayfield  aspen stone / diamond 25 or locating nib regal stone is securely in contact with the block below stagger each course in relation to the course underneath it so that each block overlaps the joins in the blocks below - known as a “stretcher” or “running” bond.   1 excavation 2 create a firm footing 3 laying the base course 5 drainage and backfilling 6 compaction 7 finishing off dig out a trench where the new wall is to be installed. this trench should be 600mm wide and 300mm deep.  add a layer of crushed stone such as mot type 1, 20mm aggregate with fines then compact using a vibrating plate.  once you have finished digging out firmly compact the soil in the bottom of the trench using a vibrating plate.  the final compacted layer should be 150mm deep and extend the full width of your trench. make sure your footing is level front-to-back and side-to-side.  this is the most important step in the whole process! start at the lowest point on the wall. as you place each block ensure it is lying completely flat on the footing.  place a perforated drainage pipe along the middle of the footing. generally the pipe should be placed as low as possible so that water drains down, out and away from the wall and into a suitable drainage system such as a soak-away.  add 150mm of drainage aggregate at a time then compact fully. the bed of drainage aggregate should extend at least 300mm from the rear of the wall.  secure a capping stone at the top of the wall using concrete adhesive. to ensure water drains away properly from the wall add and then compact a top layer of 150mm of soil with low permeability a clay soil is ideal finally brush off any soil or debris to level the blocks you will need to dig out a small channel in the footing for the lip at the back of each block to sit into bayfield / aspen stone / diamond  place the blocks side-by-side, flush against each other. use a spirit level to ensure each block is perfectly level.  top tip if you are using more than one pack of blocks we recommend mixing blocks from different packs this will help achieve a balanced blend of colours 12 fill the block cores and all the gaps between the blocks with drainage aggregate then backfill behind the course you have just laid. use a no fines aggregate place soil in front of the base course then compact adding more soil as required until the base course is completely buried add more soil behind the drainage zone and compact. continue to fill and compact as each course is constructed for more how-to-guides  and videos visit our website:    ag.uk.com important if you are planning to build a wall taller than 900mm, geosynthetic reinforcement will be required and you will need to consult a suitably qualified engineer.  13