A couple from Oakbank built its dream home more than two years ago, but just recently found black mould lining the basement walls.

The homeowner is blaming the problem on the Manitoba Building Code.

Neal King has a new baby and plans to finish his basement.

When he started the process he found a dark secret growing behind his insulated basement walls.

It was mould and according to King quite a bit.

When King started ripping down the insulation and the plastic cover, known as a vapour barrier, put there by the builder he found black mold everywhere in the basement.

His house is only 2 years old.

"Having a newborn child in the house, it made me extremely nervous," said King.

King's home was built to Manitoba Building Code requirements, but he says the top of the vapour barrier was not sealed with a caulking known as an acoustic sealant.

He believes that is the best way to seal vapour barriers, and that is why king believes moisture got in.

The builder says it did not do anything wrong because it met the Manitoba Building Code standards.

The building code says it is mandatory to seal the plastic used for the vapour barrier, but what is up in the air is how it should be sealed.

Should it be stapled, taped or sealed with an acoustic sealant?

Each builder has a preference and each method is acceptable in most municipalities.

"Somebody needs to be held accountable because "A" they didn't look into it far enough or "B" they're not taking account what can truly happen. I mean this is Manitoba there's extreme weather changes," says King.

Soon the Manitoba Building Code may get more specific when describing what kind of sealing job should be done.

CTV News brought the issue to the Manitoba Building Standards board and the committee is now considering making possible amendments at its next meeting.

"They're going to look at the way the code is outlined now with respect to the objective. Is it being met number one, and number two is there more specific information they need to provide on it," says Chris Jones from the Office of the Fire Commissioner.

If the change happens, it will not do anything to help Neal King because the code is not retroactive.

He has to figure out how to get rid of the mould safely and redo his basement walls.

It is a cost he will have to take care of himself.

The Manitoba Building Standards board will discuss the issue at its next meeting on April 16, 2009.

A member of the board says many builders use their own method when sealing vapour barriers whether it is staples, tape or acoustic and many of those homes did not get mould.

With a report from CTV's Rachel Lagac�