Using Treated Plywood For Siding

Treatment chemicals include chromated copper arsenate cca ammoniacal copper quat acq copper azole ca and safest of all borates.

Using treated plywood for siding.

With the help of a clean paintbrush sanding sealer is applied on the plywood in even and leveled brush strokes to coat the surface. Both are pressure treated for long term protection against rot fungal decay and termite attack and feature evenly spaced channels across the length of the board. The sawdust from pressure treated wood is an irritant to the eyes skin and nose. Treated siding from a source you know and trust.

While many homeowners wonder if they should use pressure treated wood for a specific project the answer is simple. Rb b siding has a channel of 1 1 2 wide groove every 12 on center to mimic the bat and board appearance used on many barns and other rural buildings. You should use a panel that has a true exterior rating even if it is rated for sheathing and not siding. Pressure treated plywood usually has a greenish hue and a slightly oily surface.

Where to use pressure treated wood. Things you need to keep in mind when you re working with plywood. Given that pressure treated plywood has a bunch of chemicals added to it you will need to use nails and fasteners that are made to withstand those chemicals. Manufacturers produce it by infusing regular plywood with chemicals under pressure to give it added resistance to mold and mildew.

Two of the most popular items for decorative siding are reverse board and batten rb b and t1 11. This means posts in contact or buried underground obviously but it also includes any lumber touching concrete or masonry since it s porous and wicks water like a sponge. When considering plywood for sheathing builders choose from 1 2 inch cdx common construction grade material or 1 2 inch pressure treated plywood. Use pressure treated wood in any situation where there s direct contact between the wood and anything that could supply moisture.

Plywood for siding is not the type of exterior grade plywood you might use for sheds. Wood for any outdoor project should be pressure treated. If you find that you are put off by plywood siding s plain look one way to make it work is to mate it with a more attractive premium material on the house facade. Try looking for apa rated sheathing c d exterior plywood.

These nails include stainless steel ones or galvanized nails with stainless steel ones being the more expensive option. You can use any panel thickness with a span rating for 16 spaced studs but with 24 studs use a panel with a roof span rating of 24 or more. You also need a clean paintbrush to apply the sealer. Home grade exterior plywood siding has a rough sawn textured appearance and its edges are ship lapped to allow for a tight fit.