For years now, we’ve noticed the mess that contractors leave behind in the new structures they build. No, we’re not referring to the beautiful flooring, cabinets, and fixtures… We’re referring to the debris left behind in the AIR DUCT system.
If you’ve ever watch drywall being sanded, you’ve seen the dust cloud that fills the building. You may have also noticed – we hope – that the workers were wearing masks. If your brand new furnace was running during construction, a lot of that dust ended up in your duct work system.
What you probably didn’t know was that the drywall dust may have contained an element listed by the OSHA as a hazardous material – Crystalline Silica.
If you are purchasing a new home or building, ask your contractor to have a certified air duct specialist thoroughly clean the furnace and air duct system before you move in, and get this dangerous material out of your new home.
The Problem’s in the MUD!
These pictures are typical of the drywall stage of a home under construction. The interior walls are wrapped in gypsum board (drywall). Nail heads and seams are filled with joint compound (mud), which is made up of the following:
- Calcium Carbonate
- Crystalline Silica
Crystalline Silica makes up only 2-5% of the material, but is listed by two of the world’s largest gypsum board manufacturers as a serious hazard:
Drywall Mud Dust – Hidden Dangers in Your New Home or Building (Part 2)