OSB subfloor and rain during construction, just how much can it take?
How many rainy days of rain can OSB subfloor handle before I should upgrade to a product like Advan Tech? It is not a regularly stocked item here and might take two weeks to get it in…and it obviously costs much more. however, I am now in the rainy season as I start this framing project…
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
Replies
None
Eric,
Most builders have switched away from ordinary OSB for subfloors. Advantech is worth the upcharge, especially in a rainy climate.
If your frame is going to get a lot of rain, I would look at Advantech subfloor and roof sheathing.