[Officeboy]

Hi there,

We've just moved house and very luckily there is a good sized but neglected greenhouse in the garden **happy face** It sits on paving slabs and while I was clearing it out at the weekend and noticed the slabs don't support it for about 4 feet on the long, south facing side, where there is a maximum gap of about an inch and a half.

Is there a simple way of sorting this? I can't imagine any basil or tomatoes will appreciate a cold wind around their toes next summer? Or should I be grateful for the ventilation? 

Many thanks

[JayG]

I'd buy a bag of ready mixed mortar or fine concrete and point up the gap, making sure as far as possible that the slabs are clean to ensure a good bond.

I built my greenhouse on what was a concrete patio area which I discovered slopes in two directions , so in one corner the frame sits on the concrete, in other places on mortared-in concrete bricks, and in others on just mortar - no problems at all after 7 years. 

Older greenhouses tend to have more 'ventilation' than new ones as the glazing strips deteriorate or somehow go AWOL, so I think it's a job worth doing for just a couple of quid.

[Officeboy]

Great, thanks Jay! Had visions of having to move the whole thing and re-lay it! Phew