My 'man with a digger' prepared my drive way for block paving with crusher-run as sub-base material and it is sloping away from the house.
Unfortunately I'm left to finish of the rest of the job with someone else as he is busy and cannot return for a while (still on good terms so no issues etc just a casual working relationship).
My questions are:
1. Taking into account a slight slope, the height of the sub-base and the top of the drainage channe (pavement end) is only 2.5 inches so about 64mm. With the block paving 50mm deep that leaves only 14mm for the sharp sand bedding. Has he cocked up, should the depth allowed for the sand be more or am I still ok as more can be laid since the rest will be sloping up? Wen is the downside to not having enough sharp sand if you have a solid sub base which is 100mm+ in depth.
2. I have some very large wooden sleepers to install on the side flower bed (to make up a height of around 0.6m) to butt up to the block paving edge. How are these to be installed, do they need to be cemented or concreted into the ground or simply just laid? I have to double decker them in order to build up height to act as a retaining wall.
3. I have a manhole cover to sort out which will now form part of the slope. They builders merchant said the old size frame and cover I had is either not made any more or they don't supply it so they gave me a slightly smaller one and sold me a lintel to add support. How should these metal frame manholes be installed - to the ground and I guess it needs to be slopes and not horizontal to the block paving drain channel which is 2ft away from it?
I will get someone else to finish the job but just want to make sure I understand how it should be done properly.
Thx.
Unfortunately I'm left to finish of the rest of the job with someone else as he is busy and cannot return for a while (still on good terms so no issues etc just a casual working relationship).
My questions are:
1. Taking into account a slight slope, the height of the sub-base and the top of the drainage channe (pavement end) is only 2.5 inches so about 64mm. With the block paving 50mm deep that leaves only 14mm for the sharp sand bedding. Has he cocked up, should the depth allowed for the sand be more or am I still ok as more can be laid since the rest will be sloping up? Wen is the downside to not having enough sharp sand if you have a solid sub base which is 100mm+ in depth.
2. I have some very large wooden sleepers to install on the side flower bed (to make up a height of around 0.6m) to butt up to the block paving edge. How are these to be installed, do they need to be cemented or concreted into the ground or simply just laid? I have to double decker them in order to build up height to act as a retaining wall.
3. I have a manhole cover to sort out which will now form part of the slope. They builders merchant said the old size frame and cover I had is either not made any more or they don't supply it so they gave me a slightly smaller one and sold me a lintel to add support. How should these metal frame manholes be installed - to the ground and I guess it needs to be slopes and not horizontal to the block paving drain channel which is 2ft away from it?
I will get someone else to finish the job but just want to make sure I understand how it should be done properly.
Thx.