With older tongue and groove hardwood or even wide plank floors gaps inevitably develop between the boards mostly because the wood shrinks over time as it dries out and loses moisture content.
Filling large gaps between skirting boards and floor.
Skirting boards often have a gap between them and the floor which can create cold draughts and lead to chilly and uncomfortable rooms and increased heating bills during the winter months.
Another exacerbating condition is water damage.
The size of these gaps often vary and traditional gap filling techniques and products are time consuming messy to install and will often fall out over time.
In my house i went round all the rooms with silicon and filled under the skirting boards made a hell of a difference.
Got large gaps between my floor and skirting boards around whole perimeter of my bedroom.
Was going to say either it was a poor build or the floors have moved and should be investigated if the gap was 1 inch.
Water logged wood will first swell then shrink as it dries out.
The problem is magnified when the boards were not tightly laid in the first place.
Or if your house is masonry and old the gap could be the result of floors supported on piers subsiding independently of the walls.
Today finally sealed at least some of them.
Caulk also doesn t tolerate much movement so that over time it would rip and get dirty.