Lauzon arching?


Old 09-11-02, 08:56 AM
Calif Mike
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Lauzon arching?

Hello everyone. I've been browsing the forums for a few weeks now and trying to learn as I attempt my first hardwood installation.

I just picked up enough Lauzon to do my kitchen and eating area and I noticed that MANY of the boards have a slight arch to them. When I lay them on a flat surface, there is a slight arch in the middle such that I need to push on the boards to make them flat. Is this normal? Will this change with acclimation??

Couple questions:

I have all of the boxes laid out on the ajoining carpet. Is this ok for acclimation or do they need to be lifted off the ground a bit?

I'll be using Bostik's Best glue. Lauzon's warranty calls for a vinyl floor underlayment. Any particular brand or type of vinyl I should be looking for and what kind of glue for the vinyl?

I removed the old tile and have been scraping my concrete slab like crazy. The surface is completely smooth and clean, but there are still trowel lines (residue?) from the previous adhesive. Do I need to sandblast all the way down to concrete?

I appreciate all your help!

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Old 09-14-02, 11:56 AM
Join Date: Jul 2002
Location: Ellijay, Georgia
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I just noticed a large blunder in the Lauzon installation specs they should be aware of when it comes to the use of the vinyl moisture barrier. You'll surely see a change when I get in touch with them.

They mention the use of a vinyl adhesive for this application <b> then </b> Bostiks Best for glueing down the engineered planks. It's very likely there will be bonding problems and I have seen it first hand with cork underlayment. Maybe they're covering the warranty but I know Bostiks won't have anything to do with it.

Arching? Maybe the material was stored in a warehouse somewhere or collected some moisture during shipment that is causing the apearance. What do the people that sold you the material have to say?

Ken Fisher
Old 09-16-02, 08:18 AM
Calif Mike
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Thanks for the reply Ken. If you get in touch with Lauzon, pleaste let me know...I'm curious as to what Lauzon has to say about using a vinyl adhesive/moisture barrier combination.

It is strange that that their warranty for engineered requires a vinyl moisture barrier, yet they don't/won't recommend any particular brand of vinyl or adhesive to use...and I'm sure there's variances among brands.

I'm going to do a Calcium Chloride moisture test and hopefully I won't need an extra barrier and can just do the bostick's right on the concrete.

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