Natural (Air) Seasoning (Junior Cert Wood Technology): Revision Notes

Natural Wood Seasoning

Overview

Natural (air) seasoning is key in wood science and technology. This process dries timber naturally by exposing it to air while using few resources and supporting sustainability.

Definitions

• Air Seasoning: Timber dries naturally when exposed to air. This process includes stacking wood to allow air movement.
• Stickers: These thin wooden slats, usually 15x25 mm, are placed between timber layers, promoting air circulation for even drying.

Process of Air Seasoning

• Timber is stacked outside for months to dry.
• Timber is placed on planks above blocks to avoid ground moisture.
• A roof or cover should protect stacks from rain and too much sun.
• Temperature, humidity, and wind greatly affect drying speed.

Stacking Timber for Natural Seasoning

• Proper stacking is vital. Timber should be off the ground with spaces for air flow.
• Use stickers between layers to aid airflow.
• Stickers made of similar wood prevent stains and reactions.
• Ensure timber is aligned with gaps for air flow through the stack.

Advantages and Disadvantages of Natural Seasoning

Advantages

• Cost-effective: No need for expensive equipment.
• Energy-efficient: Uses natural conditions for drying.
• Sustainable: Less impact on the environment.

Disadvantages

• Time-consuming: Takes months to season completely.
• Weather-dependent: Depends much on weather conditions.
• Space requirements: Needs ample space for stacking.

Advantages	Disadvantages
Cost-effective	Time-consuming
Energy-efficient	Requires large space
Sustainable	Weather-dependent

Typical Setup for Natural Seasoning

• Setup includes open yards or sheds to shield against rain and ground moisture.
• Best for places with mild climates, avoiding high humidity or dryness.
• Moisture control is crucial, using blocks and covers.
• Stack spacing should prevent water collection and allow airflow.