The gap in question was previously filled with either fiberboard or concrete crack sealant but enough of it has deteriorated to conceivably allow moisture in.
Filling gap between concrete slab and wall uk.
If you re a home owner the tell tale signs of cracked mortar or weeds in between the gaps is a sure sign work needs to be done.
This will hopefully be the fix that keeps that wall of the sunroom nice and dry.
I m trying to determine whether to caulk the crack or fill it with some cement based patching.
Gripset betta concrete crack filler is a unique solvent free crack sealer designed to protect cracks and joints in concrete pavements against water ingress and the breakdown of pavement surfaces.
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In the short term a sealant applied along this gap between your basement floor and wall may prevent leakage.
However it s not that simple.
To remedy this issue i installed backer rod in the gap that i then covered with concrete crack sealant.
Gaps in concrete whether they result from cracks in the slab or occur between the slab and an adjacent surface can serve as openings that allow dirt moisture or insects into your home.
I poked at it with a chisel and removed the loose material.
27 march 2017 at 3 19pm edited 30 november 1 at 1 00am in in my home includes diy moneysaving.
There s a wide ugly gap between my concrete outdoor patio slab and the slab my house is built on.
This has left a channel of about 1 wide all the way around the edge of the wall.
It may seem like an obvious solution to simply seal the cove joint to prevent water from breaching into your home.
The house was built in the 50s and the majority of the concrete slab is deteriorating around the inside of the home next to the wall but this area was the worst that we have found so far.
Traditionally sand and cement was used to varying degrees of success today however there is a simple flexible and durable alternative.
The screed and concrete around the edge of my concrete slab where the slab meets the external cavity wall was cracked.
So filling them should be a maintenance priority.
Gripset betta concrete crack filler is a waterproof sealer that penetrates into the depth of the crack filling the void and sealing against moisture and water vapours.
Why you can t just seal the gap between your basement floor and wall.
Hi phild01 thanks for your reply.
There s no need to pay a contractor however.
The difference of the level from the existing concrete slab to the merbau decking boards is 130mm and yes the pavers will come up to the level of the weatherboards that s why i ll leave about a 100mm gap between the pavers and the weatherboards but would like to cover it with something that still lets air through and can be taken off for termite inspection.