This is not actually a problem with the construction however but an issue that can often be controlled or eliminated by changing the upkeep of the area and in some cases the controlled climate conditions.
Concrete gutters condensation.
What do finlock gutters look like.
If you have concrete in your home that routinely appears to be wet or feels damp then you may have sweating slab syndrome.
The concrete gutter is solid from outside to inside and so when it is cold outside the concrete sections are colder inside than the adjacent surfaces and so attract condensation when environmental conditions are right.
Concrete sweating usually occurs when warm air encounters a colder temperature concrete slab.
Concrete gutters are designed in blocks.
We replace concrete finlock gutters throughout the uk with new maintenance free plastic roofline products.
Quite often finlock gutters were used above cavity walls which were insulated or had better thermal performance.
The existing concrete gutters are carefully cut off in line with the external brickwork of the wall using a rotary saw with a clutch which takes a 14 blade.
Another source that can be thought of as internal is the moisture contained in new concrete after construction.
Mortar was then used to fix them in position and to fill the small gaps between the blocks.
The condensation will build up on the surface and can commonly be defined as concrete sweating.
Concrete sweating is often mistaken for a water problem since it is common to see a condensation effect on the surface of the slab.
When basements are finished these activities increase.
Once the walls of your property were completed the concrete blocks for the guttering were placed on top.
A 14 blade is the smallest size which will cut completely through the 150mm thick concrete gutter system.
Moisture is generated inside of basements from people and their activities.
They are easy to spot once you know what you are looking for.