Can T1-11 be used inside?
Can T1-11 be used inside?
As far as the rough finish, it never really caused a problem. T-111 is a good choice for unheated interiors.
Does T1-11 have Formaldehyde?
Most of the wooden sheds are made from OSB sheets and T1-11 siding and both of them are pressed wood products with high concentrations of formaldehyde.
Does T1-11 need to be painted?

Personalization. The other downside of OSB T1-11 is you can’t stain this siding. It must be primed and painted, taking away one of the primary reasons homeowners choose to go with this particular siding material.
Can I use exterior siding inside?
Use Exterior Wall Finishes Inside Doing something really simple, like using lap siding (see photo above) on an interior wall can completely transform your room in a single day. You can start nailing up siding on a wall in the morning and have the job totally complete by nightfall. It’s that simple.

Can T1-11 get wet?
Water damage is the most frequent (and frustrating) problem with T1-11 siding. When the boards get wet, they swell, expand, and eventually flake, corrode, and rot. The edges of T1-11 panels are especially susceptible to water damage and absorb moisture at a rapid pace.
Is it better to paint or stain T1-11 siding?
On rough sawn T1-11, stain will penetrate even better. l also recommend acrylic stain if you want to preserve the wood look of the siding. Paint is a lot thicker and hides more of the surface texture than stain does.
Can LP Smart Siding be used indoors?
a. Using LP SmartSide in an interior application is acceptable. Please review the material safety data sheet (MSDS) before using the product indoors.
Can T1-11 be hung horizontally?
Rather, they only show it installed vertically. Originally, T-1-11 siding was made from standard A-C plywood with a “textured” face ply (thus the T symbol in its name) and grooves cut into the plywood along the 8′ length. This method of making “siding” was not acceptable, because the inner plies had voids.
How long does t11 siding last?
T1-11 siding is a very durable siding material and can last for more than 20 years if it is properly installed, regularly maintained, sealed with quality paint or stain, and protected from water and mold damage.