It should help the filler to go in between the boards a bit more evenly.
Reparing gaps hardwood floors wood fill.
The most extensive is to have to completely replace a floor that has too many gaps to repair without losing its beauty.
Water logged wood will first swell then shrink as it dries out.
You can fix floor gaps in a number of different ways.
Before you begin filling gaps in old wood floors with caulk make sure you have properly inserted the tube into a standard caulk gun.
Unfortunately this is not a permanent fix for boards affected by humidity as the boards will continue to expand and contract.
This type of cracking is considered normal for hardwood and no filler method will hold up unless the proper humidity is maintained.
Set the angled tip of the tube into the gap and pull the trigger.
Another exacerbating condition is water damage.
You may be tempted to fill the gaps with a wood filler.
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.
Ordinarily you can fill the gaps with wood filler putty or with pieces of rope and then finish with stain to match the floor.
Different gap repair methods.