Readers ask: What Is T1 11 Plywood?

What does T1-11 stand for?

Plywood and other compressed wood siding products are an inexpensive way to sheath outdoor buildings, sheds and other projects. T1-11, sometimes noted as T111 or T1, is an example of one of many such wood siding products. The ‘T’ in T1 stands for ” textured,” which references the grooves or channels cut into the siding.

Is T1-11 siding waterproof?

T1-11 siding is not treated and is vulnerable to moisture damage. It comes in two types: plywood and OSB (oriented strand board). This type of plywood siding is injected with rosins and other chemicals, under pressure, to make it waterproof and protected against termites, rot, and fungal decay.

Is T1-11 a OSB?

T1-11 siding comes in two major grades, plywood and OSB (or oriented stand board). The plywood product is a little more expensive but is far superior to the OSB variety because of its greater durability and expanded finishing options.

Can T1-11 be used as sheathing?

In some construction techniques the use of T1-11 can act as both a wall cladding and sheathing all in one. These panels need to be rated for structural use. This means if you removed the sheetrock and insulation you would see the house wrap.

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Should you paint or stain T1-11?

T1-11 siding is wood or wood-based siding for your home. You should paint T1-11 siding with a high-quality acrylic exterior paint.

Do you need plywood under T1-11 siding?

As originally designed, T1-11 siding was made from Softwood plywood. The addition of OSB was made as a cost-cutting measure. But the best T1-11 siding is still made of softwood plywood. OSB is much more susceptible water soaking in and swelling the sheet, especially at the edges.

How do you seal the bottom of T1-11 siding?

Trim the siding with one-by-four-inch wooden trim, covering the gaps around windows and doors, under the soffit and on the corners of the house. Nail the trim with two-inch galvanized nails, then caulk around it with acrylic latex caulk.

What is better than t111?

LP SmartSide is an engineered wood product that is more weather-resistant than T1-11 siding. It is less susceptible to rot, fungal decay, insect damage and thus requires less maintenance. LP SmartSide is, overall, a better cladding solution for most people.

How do I keep my T1-11 from rotting?

WOW’s way works well as you just have to cut off the rot and then apply a trim board. PVC is great because it won’t rot and can touch the ground without wicking up moisture. Wood is ok too, but you will want some sort of barrier underneath it where it hits the ground or it will rot in short order.

Can you install T1-11 horizontal?

1 Answer. If you carefully read the instructions, you will not find any instructions that say it cannot be installed with the grooves horizontal. Rather, they only show it installed vertically.

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How do you prepare a T1-11 for painting?

How to Paint T1-11 Siding

  1. Clean. Use a pressure washer to remove dirt, mold, and old loose paint.
  2. Replace damaged panels. If you discover any loose panels, secure them.
  3. Caulk. Inspect the caulking around windows and doors.
  4. Prime. Prime the siding with a heavy acrylic primer.
  5. Paint.
  6. Re-touch.

Is T1-11 Toxic?

All those products contain formaldehyde in the glue and are toxic. 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.

What thickness T1-11 should I use?

If you are looking for a more natural appearance, then you definitely would want to go with the rough finish. You can find T1-11 siding in sheets that are 48 inches x 96 inches or 48 inches x 120 inches. It comes in thicknesses of 3/8 of an inch, 5/8 of an inch and 3/4 of an inch.

What can I use instead of T1-11 siding?

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.

Who makes T1-11 siding?

APA Rated Siding products are manufactured from a number of different species and are available in configurations such as reverse board and batten, T1-11, channel groove and other common finishes.

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