T1-11 siding is not treated and is vulnerable to moisture damage. It comes in two types: plywood and OSB (oriented strand board). The OSB version of T1-11 is made with wood pieces and strands glued together and water-treated with binding resin.
Does T1-11 need to be treated?
T1-11 siding is not treated and is vulnerable to moisture damage. It comes in two types: plywood and OSB (oriented strand board). Because of the way it is manufactured, OSB is more susceptible to water and structural damage than plywood T1-11 siding.
Is T1-11 waterproof?
T1-11 siding is not waterproof because it is not treated with any resins and chemicals that repel moisture. T1-11 siding needs to be protected against the weather with primer, paint, or stain. You also need to caulk around doors, windows, joints, and nails to keep the water out.17 Jul 2021
What is T1-11 siding made of?
It is made with wood strands and flakes and is treated with a resin to bind it together when pressure is applied in the process. If the OSB T1-11 siding gets wet, it swells and expands, flaking, chipping and eventually will rot.1 Apr 2019
Can T1-11 get wet?
OSB T1-11 siding has more issues with water because of how it is manufactured. If the OSB T1-11 siding gets wet, it swells and expands, flaking, chipping and eventually will rot. T1-11 will last and stay beautiful if adequately installed, painted or stained, sealed and maintained.1 Apr 2019
Does T1-11 need to be sealed?
Both Plywood and OSB T1-11 siding should be treated or primed. Sealing T1-11 siding protects it from harsh weather and other elements. While it may lose its initial appeal and natural look, its life will be extended for several years.
Is T1-11 better than plywood?
T1-11 Siding Explained T1-11 siding comes in two major grades: plywood and OSB, which stands for 'Oriented Strand Board. However, the plywood version of T1-11 is far superior overall to the OSB version because of its greater durability and the variety of finishing options it offers.13 Aug 2018
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.
What is better than T1-11?
It can stand up to harsh weather in any climate and resists damage from termites and fungal decay. How to Decide: If you want the most durable siding available, then LP wood siding is your better choice. If you want to sacrifice some durability for savings, then choose the plywood grade over the OSB T1-11.21 Apr 2018
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.17 Dec 2021