Parquet flooring adhesice coming through the joins

[bigboy]

I have recently purchased a 40 year old house with parquet flooring.

I noticed that some of the parquet flooring adhesive is coming up where the blocks are joined together. Does anyone know why this would happen? (The affected area is in the middle of the room away from the fire and any moisture)

 

[WoodYouLike]

Did this happen recently (is the flooring new?, although in a 40 years old house)

 

[bigboy]

The flooring looks pretty old. I suspect it was fitted with the house, or at least some time ago.

The adhesive has only started to come up in the last 2-3 weeks, though I've had the house for a couple of months.

A couple of things to point out are that I have not run the central heating since I moved in and my area has had very heavy rain for the last month.

 

[WoodYouLike]

Well, I'm at a loss!
Are you sure it's adhesive? Is it black, cause in 'the old days' they used bitumen as adhesive.

 

[bigboy]

Yes it's black and sticky. Much like tar that you see on the road (in the UK). So it probably is bitumen. I would certainly class the floor as one from the "old days"

When i clean it up, is there any way I can stop it coming back up again? Or should I call in a specialist to find the cause first?

 

[WoodYouLike]

When i clean it up, is there any way I can stop it coming back up again? Or should I call in a specialist to find the cause first?

Yes, I think that's your best bet, specially when you say the central heating hasn't been on.

 

[Symo]

Perhaps the seller made a few quick repairs to the floor, prior to the sale, and has used whatever adhesive he had to hand. This could be reacting with the original bitumen?

Symo

 

[WoodYouLike]

Good thinking Symo

 

[rustysul]

I have recently purchased a 40 year old house with parquet flooring.

I noticed that some of the parquet flooring adhesive is coming up where the blocks are joined together. Does anyone know why this would happen? (The affected area is in the middle of the room away from the fire and any moisture)

I have the same problem with the bitumin coming through, i clean it away carefully using a stanley blade and then wipe with white spirit, been like this since I sanded the floor about 6 years ago. I think the cause is the floor has been sanded before (maybe a couple of times) and the blocks are now quite thin and the heat from the sander working, has warmed up the bitumin and when you walk on it it suirts up slowly through the gaps.