Hi,
I have some wood floors in my apartment which I think were damaged by water prior to our buying the apartment. Our neighbour told us that about 10 years ago the previous owners flooded their whole apartment. I reckon that's when these boards went wrong, they're right outside the bathroom.
Essentially, they pop up a few mm and feel spongy. They are clearly not glued down in several spots, especially around the edges of the boards.
From what I can tell they are 5mm thick either hardwood or engineered wood. I don't know which though I'm leaning towards actual wood because it sort of looks like uniform wood all the way through on the side of the pieces. Maybe you can tell from the images.
I think when they were installed they came in pieces that were 3 planks wide because I can see at the joins it is always 3 planks together and in a couple of spots where they aren't glued properly anymore all 3 planks raise up as one piece. They are also different coloured planks all in the same triple plank piece.
Anyway, I am wondering if I can just glue them down again and if so what I should use to do that?
I found a IFK-Kit Injection Floor Repair kit online which looks like the business, but I have no idea about this so I wanted to check with someone who knows about this stuff before jumping in.
Also I can't find anywhere to buy it online (their website responds saying they are busy and will reply eventually) http://www.stauf.com.au/index.php/259/@ ... ion=detail
Is there a special type of glue you can recommend that I could just buy a tub of from somewhere, and a big syringe from bunnings or something? Or what can you recommend?
Any help would be greatly appreciated, thanks.
Also, any help on whether or not it is engineered wood or actual hardwood, and also if anyone happens to know the type/model/brand that would be really useful.
Below is a photo of the side of the wood with the underflooring (this one piece broke out completely so I can see the side of the surrounding pieces). Then the 2 photo's below show the edge of one of the boards being pushed back into place.

