The Medway Handyman wrote:
Rod wrote:
The Medway Handyman wrote:
Roger Mills wrote:
In an earlier contribution to this discussion,
The Medway Handyman wrote:

I'm only talking from my experience. A house I was working in had
wardrobe doors made from 8' x 2' contiboard covered with T&G
cladding across the 2' width. Each strip had been glued down with
no more nails.
It contracted so badly the contiboard had taken the shape of a
longbow, even to the point of pulling a hinge out on one door.
I assume that the T&G must have had a high moisture content when
fitted, and shrank when it dried out.

Even so, I would have expected it to come apart at the tongues and
grooves rather than staying together and bowing the contiboard.
No More Nails had been used...



But was the T&G applied to both surfaces?

No, just the front. Each piece had been glued to the contiboard & had glued
T&G joints.



The mistake was gluing the T's & G's.