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Acclimating Wood

Sakkho tiles made out of wood will be subject to variations in the ambient climate. Tiles should be installed when they are already acclimated.

 

1. Simple Step-by-Step Guide
2. Wood Properties
3. Acclimation Purpose
4. Teakwood Properties
5. Sakkho Tiles Properties
6. Installation Type
7. Time to Acclimate Wood
8. Weather Conditions
9. Best Season for Acclimation
10. Indoor or Outdoor Micro Climates
11. Site Conditions
12. Storage Location
13. Storage Procedure
14. Recommendations

 

 

 

1.  Simple  Step-by-Step Guide

Sakkho tiles are designed to be used indoor or outdoor; they are versatile in their use, made out of hardwood and feature patterns made with slats and gaps. As a simple guide we recommended acclimating tiles by following these simple steps:

 

1.

Clean and clear the area where the tiles are due to be installed.

2.

Avoid an excessively humid site to acclimate Sakkho tiles.

3.

Store tiles indoor or outdoor to same climate conditions as after installation.

4.

Open all boxes (top and bottom) or take all tiles out of the package.

5.

Stack or spread opened boxes or tiles for air to flow through each tile.

6.

Do not over stack boxes or tiles as heavy hardwood may damage your floor.

7.

Protect all tiles or boxes from direct sunlight, snow, rain, etc.

8.

Let the wood and tiles sit for about two weeks to acclimate. 

 

 For detailed information related to acclimating Sakkho tiles, read below.

 

 

 

2. Wood Properties

As an hygroscopic material wood tends to absorb the moisture in the air responding to variation in moisture content ("MC"). Wood will then absorb or expel humidity to adjust and remain in equilibrium with the ambient atmosphere and MC causing it to expand or shrink.

 

 

 

3. Acclimation Purpose

The purpose of acclimating the wood is for the timber to reach the Equilibrium Moisture Content (EMC); that is the moisture content of wood when in equilibrium with its environment. At EMC wood is neither gaining nor losing moisture.

 

 

 

4. Teakwood Properties

Teakwood is a dense, hard, strong, very durable and heavy timber with a relatively low shrinkage ratio which makes the acclimation process slow. As such teakwood is excellent for applications where it undergoes periodic changes in moisture. In addition to this, teakwood is oily by nature making it very slow to changes in moisture content as it repels water.

Sakkho teakwood is presented kiln dried at 10% to 12% Moisture Content.

 

 

 

5. Sakkho Tiles Properties

Sakkho tiles by their nature are made out of many slats of timber with gaps in between them giving the wood more room for expanding and shrinking when it adjusts itself to the ambient moisture content.

 

 

 

6. Installation Type

The way the tiles are to be placed next to each other will also determine the necessity or importance for properly acclimating Sakkho tiles. If tiles are installed with a small 4 to 8 mm gap in between each tile, any timber movement as it expands or shrinks will have little or no effect on the overall installation. For more information on how to place tiles, visit the Laying and Spacing Tiles page or click here.

 

 

 

7. Time to Acclimate Wood

Acclimating wood or acclimating Sakkho tiles is not about how long you let the wood sit before installation but how well the timber has adjusted itself to the ambient humidity level.

There is no set formulae for acclimating wood as timber species, wood moisture content at delivery, timber products, and installation locations are all different each requiring a different duration for acclimation. It is important that the wood reaches its Equilibrium Moisture Content.

As a guide, given the structure of each Sakkho tile, we recommend Sakkho tiles to be acclimated for about two weeks (10 to 15 days) at the specific location where they are to be installed.

 

 

 

8. Weather Conditions

If tiles are to be installed in a location where weather conditions often vary, then changes in climate may have an important impact on the duration necessary for the wood to reach its EMC. 

 

 

 

9. Best Season for Acclimation

For best results, whenever possible, install Sakkho tiles during a season with a relatively average humidity level for your location. The process of acclimating wood is only complete when the moisture content of the timber is equal to the Relative Humidity (RH) in the environment. Relative humidity (RH) is the amount of moisture in the air as a percentage of the amount of moisture the air can actually contain. A climate assessment can be done prior to the installing Sakkho tiles.

It is important to know the long-term relative humidity (RH) for the location where tiles are to be installed as it will give an indication whether the wood will absorb moisture from the air and expand, or shrink by losing moisture.

If tiles have a moisture content close to the average relative humidity for a location then any subsequent seasonal changes will have minimal effect on the wood. Inversely if there is an important difference between the moisture content of the wood and the relative humidity, then seasonal changes may considerable affect your installation and create issues as the wood changes.
Do not install Sakkho tiles too early after construction. Some elements such as plasterboards, concrete and paint still dry after construction and will put moisture into the air as they dry. Wait until the construction is ready to be used in normal daily conditions before acclimating wood products.

 

 

 

10. Indoor or Outdoor Micro Climates

When trying to assess and control the acclimation process and how timber will respond you also need to consider micro-climates created by the surroundings.

 

a. Internal Micro Climates

Some examples of internal microclimates affecting the movement of the timber are but not limited to Sakkho tiles being installed on a wall or floor directly in front of a large window subject to the sun, next to a fireplace, evaporative coolers, air conditioner, heater, fridge. Tiles installed at ground level compared to tiles place higher may expand or contract differently.

 

b. External Micro Climates

 The most common example of external microclimates would be tiles installed covered within an alfresco area or directly under the sun with elevated temperatures, next to a swimming pool or spa, or directly in the path of constant wind and wind changes such as on boats.

 

 

 

11. Site Conditions

To properly acclimate Sakkho tiles the location must be dry with similar weather conditions as when the tiles will be installed always avoiding acclimating tiles in damp areas. The wood should not get wet and be kept in a well-ventilated area away from condensation. Air vents should be clear.


Builders Plastic on Joist

If tiles are to be installed at a location where a heater or air conditioner runs, do not start acclimating the tiles until the heater or air conditioner has been running for at least 5 days as you would normally use it.

A hygrometer can be used to measure on site relative humidity while a timber moisture meter can be used to check moisture within the timber. Set a baseline by measuring the moisture levels as soon as the timber is delivered.

If necessary, consider installing a moisture barrier by using polythene flashing or other builders plastics over concrete or on joists.

 

 

 

12. Storage Location

Sakkho tile should be acclimated in the same room, level or outdoor location where they are due to be installed. As Sakkho tiles may be used for interior or exterior projects, tiles should be acclimated accordingly.

 

 

 

13. Storage Procedure

Acclimation of wood always starts with proper storage at the job site to ensure the wood and Sakkho tiles will acclimate to the exact same climate in which they will be installed.


Sakkho Tiles Stacked to Acclimate On Site

Either open boxes or remove the tiles from the boxes allowing airflow and adequate ventilation, especially for hardwoods such as teakwood which are slow to adjust their moisture content.

Stack tiles out of boxes or inside opened boxes in a manner that allows each tile to be ventilated.

Some hardwoods such as teakwood are very heavy, therefore avoid stacking tiles to high as floor damages or collapse may occur.

 

 

 

14. Recommendations

Acclimation should always be considered and always be done with care regardless of the project for which Sakkho tiles will be used.

Failure to adjust the timber moisture content may result in unsafe, inadequate, failed installation or irreversible structural damage and void any applicable manufacturer warranty.

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