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Fiberglass-Faced Wallboard Combats Mold and Moisture

Bob meets Thad Goodman from Georgia-Pacific who is on site to install DensArmor Plus fiberglass-faced wallboard in the storm-ready house. The four-by-ten sheets are drilled into furring strips installed against the concrete walls. DensArmor Plus is ideal for humid climates where mold, mildew, and insects are attracted to the sugars and starches used to bind gypsum in traditional wallboard. By eliminating the organic material, DensArmor kills the food source for dangerous mold and insect growth. The wallboard is finished with fiberglass mesh tape and a setting compound that is enhanced to set up quickly and reduce the opportunity for moisture intrusion.
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Fiberglass-Faced Wallboard Combats Mold and Moisture

  computer-generated transcript - may not be 100% accurate

" That's they -- that Goodman. Watch how this last piece goes in place that this is a four by. Ten sheets for but ten sheet that's correct that makes it quick doesn't it now this is Georgia Pacific's. Densarmor. And actually -- work before you before you nail that in the receive in particular is they really. Looks like -- any conventional. Gypsum wallboard right yes it does that's the beauty of it and does it install them. British audience installs traditionally like regular rot at all he's got a tape -- just like it would even though it's all fiberglass face and -- rot at all. And we would screw it in the same time manner right so he's saying there he's getting ready to do that right here. And he's got his -- down there so that he can get the whole sheet up tight. Of course we are in eight solid concrete house that we have furring strips. Every sixteen inches on center. And that's for the get attached to right. Now one of the big challenges in any kind of humid environment. But especially in Florida is problems you might have with mulch. And I guess that's the main thing that we're addressing with this particular product right. Right when you think about the way traditional drywall has been made since the sixties has been made with paper draw paper yeah. We starches and sugars that we put to attract the paper. Into the gypsum so that those bond together I didn't."

" Starches and sugar my sugars and and we certain things are -- its way to fit it also is a good food source for mold. So the theory with densarmor plus is that we've taken that food source away by wrapping it fiberglass -- and we also clean our system for a couple days before we run this product so that we can take all the recycled content. -- were also the case all the things that could grow in that happening theoretically are gone okay. No I didn't realize that about the sugars and starches thought it was just a question of the paper being organic. Organic material that would be post -- and a and animals you know what you think about -- it gypsum crystal re -- when negroes -- typically it goes every which direction what we're trying to do was get it to adhere to that paper right so as we get it to adhere to that paper we use the starches and sugars to bind it OK there are binders --"

" Yeah."

" That's what's the ruins of the so. -- trip across."

" Now let's talk about the tape because if if you've got all this trouble to not have any food source for -- if you have paper tape that was the same thing right right exactly we want to eliminate as much of the food source as possible so we're looking forward we're listening to the fiberglass mesh tape. All right. And then once you've put the tape up all over the place is -- traditional joint compound. Well there's two ways to do it traditionally you can use joint compound but the better way to do it would be descended on them. Not accelerators retardant. So that it dries faster and less opportunity for moisture intrusion later terrific and in this climate that's what you need to -- so are you -- thanks dad."

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