Is RTD better than CDX?

RTD and CDX plywood are essentially the same exposure 1 graded plywood, except for the superior manufacturing quality of the RTD plywood. This higher quality in the manufacturing process is what makes the RTD plywood a superior product to its CDX predecessor.

Is RTD plywood exterior grade?

Exposure 1 rated plywood, mostly called “CDX” in the trade. Exterior panels sometimes referred to as RTD sheathing, are designed to hold up to constant moisture. They are completely waterproof and are great for installing in places where you expect consistent exposure to moisture.

Can you use RTD plywood for roof?

RTD Plywood can be used for a variety of projects, including residential and light commercial construction. You can use RTD plywood for walls, roofs, ceilings, and even floors. Since it is made from treated wood, it is also resistant to moisture and insects, which results in a longer life span than regular plywood.

What is RTD plywood rated?

RTD refers to the method used to manufacture the plywood. This is, essentially, next generation CDX plywood which is manufactured with a quality control system using RTDs (Resistance Temperature Detectors) to maintain correct temperature during the bonding process.

What's the difference between CDX and CDX plywood?

The less the number of knots, holes and repaired defects the more expensive the plywood. If so, it therefore, means CDX has the most number of knots and defects, making it a lower grade plywood. C in CDX means one side of the plywood is of grade C, and the other is of grade D.

What Is The True Difference Between Oriented Strandboard and CDX Plywood?

What is the difference between RTD and CDX plywood?

RTD and CDX plywood are essentially the same exposure 1 graded plywood, except for the superior manufacturing quality of the RTD plywood. This higher quality in the manufacturing process is what makes the RTD plywood a superior product to its CDX predecessor.

What is the highest quality plywood?

A-grade plywood: This is the highest-quality plywood and therefore typically the most expensive, since the veneers will be flawless. A-grade plywood is smooth and can be easily painted. B-grade plywood: B-grade plywood is slightly less smooth than A-grade plywood and has a solid foundation.

What is CDX plywood used for?

CDX Plywood is used primarily by contractors to build exterior walls and roofs. CDX plywood has one side veneer grade “C” and one side veneer grade “D”. The two are bonded together with glue which can withstand a little moisture. The APA would recognize CDX Grade Plywood as C-D Exposure 1 plywood.

Is RTD pressure treated?

Every piece meets the highest grading standards for strength and appearance, so it's durable and easy to work with. Pressure-treated for use in all your above-ground contact projects.

What type of plywood is best for subfloor?

Standard plywood can be used for subfloors, but a better material is 3/4-inch tongue-and-groove plywood subflooring. The tongue-and-groove edges interlock to resist movement along the panel edges and create an overall stiffer floor.

What type of plywood is used for roofs?

What is the Best Plywood for Roofing? 5/8-inch plywood is the most common choice for roofing with 24-inch rafter spacing. It's also the standard for most roof applications because it supports roof loads in most situations. However, heavier roof loads may require 3/4-in CDX plywood for roof sheathing.

What is the difference between ACX and CDX plywood?

As such, a sheet of A-C plywood will be very well finished on the face with a relatively unfinished back. Conversely, construction-grade plywood would be C-D (commonly referred to as CDX plywood), which is great for structural use but not suited to be finish material.

Is OSB more water resistant than plywood?

OSB takes longer to get wet than plywood but also takes longer to dry out. When used as a roof sheathing, this tendency to hold moisture means it can degrade faster than plywood when exposed to chronic leaks.

What is exterior grade plywood?

Exterior plywood is weather (and water) resistant, so it's strong enough to be used outside and also in areas that are exposed to water and humidity, like a garage. This type of plywood, often made from Douglas fir, is made stronger by adhering its layers with a waterproof glue.

Which is stiffer OSB or plywood?

“OSB is stronger than plywood in shear,” says a report by the Building and Construction Technology program at University of Massachusetts--Amherst. “Shear values, through its thickness, are about two times greater than plywood. This is one of the reasons OSB is used for webs of wooden I-joists.”

Is plywood or OSB better for a subfloor?

OSB has a lower resale value than plywood due to its lower strength. For this reason, few homeowners prefer OSB in their homes. Apart from costs, plywood is superior in all the other areas, such as the strength of the structure. For this reason, it's a superior material for use on the subfloor.

What is the difference between sanded plywood and sheathing?

Sheathing: Standard construction plywood used for wall sheathing, roof decking, floor structures (subflooring) and general rough construction where looks and surface imperfections aren't important. Sanded plywood: General-purpose "project" plywood with decent-looking face veneers that have been sanded smooth.

What is marine grade plywood?

Marine Grade Plywood is an exterior structural panel, sanded on both sides, most commonly made from Douglas fir or Pine. Other species of hardwood may also be used for marine plywood, usually in the Marine (boating) industry.

What is ACX plywood made of?

ACX plywood is a high-grade plywood made not from a species of tree but from veneers, which are thin sheets of peeled wood grain. Veneers are typically stacked together with each layer's grain perpendicular to the adjacent two layers.

Is CDX good for roof?

Do not use CDX for roofing, sheds, or other places that are exposed to moisture consistently. The sole exception to this is pressure treated CDX, which can survive for decades without even a protective coating.

What is the best sheathing for a roof?

OSB is the better option for roof sheathing. It's water-resistant and costs much less than other options.

Is CDX plywood rated for outdoor use?

CDX plywood, a stock item at most lumberyards, is a utility grade suitable for most outdoor projects.

What are the 5 grades of plywood?

What are the 3 types of plywood?

What are the three main types of plywood?

Plywood typically comes in three-, five-, or multi-ply, with three-ply being the most common. Three-ply is strong, durable, and looks more decorative than other styles. Five-ply is stronger than three-ply, while multi-ply is strong enough to be used for exterior projects, like roofing.