about pressure treated lumber

 

What is the average cost Pressure Treat?

 

  • Pressure treated wood is 40 to 80% cheaper than most other lumber and last twice as long as redwood.

 

 

 

Will the colour of my Preserved wood change with time?

 

The green color of preserved wood is the result of the treatment process. Over a period of time, this color will diminish and change to a pleasing light brown, if left unstained.

 

 

What to do when staining or sealing Pressure treated lumber?

 

  1. 1. Remove staining, mildew and old finish with a commercial deck cleaning solution. 

 

Pressure washing is almost always a must on older decks, but be sure not to use too much pressure. You can damage the wood if it's turned up too high. Usually 1500-2500 PSI is adequate for pressure treated lumber. Read More

 

 

 

  1. 2. After cleaning the Pressure Treated Lumbar

 

Let surface dry very well. Most coatings require that the wood should be dry before application. There are exceptions. Thompson's Water Seal Advanced Wood Protectors can be applied to damp lumber, so it's possible to clean and waterproof your deck in one day. Read the directions on the product you're using for temperature and weather guidelines, drying times, etc., and follow them!

 

  1. 3. Choose your finish

 

You can use an oil base or water base sealer or stain, solid or semi-transparent. The best method for applying the material is with a brush or a paint pad on a long handle, available at any hardware store. Most materials can be sprayed also, but you will end up needing a lot more product this way. For a large deck, spraying will save time but you should brush the material into the wood. This will help with uniformity and provide a better looking job.

 

NOTE:

  • You should reapply the finish  every one-two years
  • You should wait roughly one year to strain, seal or paint pressure treated lumbar to allow the freshly treated lumbar to dry.

 

Read More

 

 

 

What is pressure treated Lumbar and How do they make Pressure Treated Lumbar?

 

 

Pressure treating is the process that forces chemical preservatives into the wood. Wood is placed inside a closed cylinder, then vacuum and pressure are applied to force the preservatives into the wood. The preservatives help protect the wood from attack by termites, other insects, and fungal decay.

 

What types of chemicals are used in Pressure Treated Lumbar?

 

Waterborne, Creosote, and Oil-borne (penta) are the three broad classes of preservatives typically used when pressure-treating wood.

 

Wood treated with waterborne preservatives is typically used in residential, commercial and industrial building structures. Creosote is primarily used for treating railroad ties, guardrail posts, and timbers used in marine structures. Oil-borne (penta) is most often used for treating utility poles and cross arms.

 

Several typical waterborne preservatives used in building applications include: Chromated Copper Arsenate (CCA-C), Alkaline Copper Quat (ACQ-C, ACQ-D, ACQ-D Carbonate), Micronized Copper Quat (MCQ), Copper Azole (CBA-A & CA-B) and Sodium Borates (SBX/DOT).

 

These treatments are often referred to by trade names such as: Wolmanized Natural Select™ (Copper Azole), Preserve and NatureWood® (ACQ), MicroPro™, Smart Sense™ (MCQ), and Advance Guard® (Borate). Each preservative usually has a number of variations available so care should be exercised when specifying treated wood.

 

Some different oil-borne preservatives that are used are Chlorpyrifos/IBPC, Copper Naphthenate and Pentachlorphenol. One advantage of these treatments is that they do not create swelling in the wood, but there is generally an added cost over water-borne treatments as well as availability in some regions.


 

Source http://www.cedar-deck.org/finishing_cedar_decks/maintenance.htm

Lowes http://www.lowes.com/cd_How-To+Projects_615580068_

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