Why Do Builders Use Untreated Wood In New Home Construction?
This is a great question, then one that deserves paying attention to. Using the wrong products on wood studs inside walls may cause major health problems along with the worst situation even death. I know that sounds extreme but I have personally had experience with your house that has been built by the do-it-yourselfer who thought if he used all pressure treated lumber inside walls that his house wouldn’t rot. Well, the house didn’t rot, nonetheless, it did stink like poison, and the owner/builder eventually died of brain tumors associated with overexposure from the toxic chemicals.
What he failed to realize is that all of the protective layers which are place on the outdoors of your house to prevent rain and bugs form a sort of jacket at home. And while keeping sun and rain out, it can be keeping the home or ‘conditioned air space’ in. So you must maintain your conditioned air space free of toxins. There are building wrap products to aid your home breath better but this won’t stop the smells of poison in the wall as the 1/2″ sheetrock on the in the wall is much thinner plus much more porous than the 1/2″ plywood conversely from the wall. Plus on top of the plywood, you have either building paper or house wrap then siding and paint. So it’s less difficult for that smells to visit in the home instead of out.
Treated wood is primarily used for ground contact or direct contact to concrete. While treated wood is about half the price of the alternative rot-resistant wood (redwood), it’s about 2-3 times the quantity of un-treated Doug fur which is the material of choice for most builders. Most treated wood is Doug fur that gets injected with lots of poisons (this is exactly why you see all of the little dash marks on treated wood, it is from your injection process). Since they are taking the same Doug fur lumber to inject since they will typically use the number 2 boards or lower end.
Between you, me, and also the rest from the world that reads this, Treated wood is not a safe alternative to naturally rot and pest resistant woods like redwood. States like California have recently banned treated wood coming from all landfills and dumpsites as a result of groundwater contamination. The recent standard change has additionally reduced the volume of toxin levels by approx. 50%. While these attempts are a measure within the right direction it’s not viewed as green building or green to use products with copper or zinc naphthalene.
When protected correctly, Doug fur constructed homes can last a lengthy, number of years. When left unprotected nevertheless it can rot real fast.