Method of forming insulating articles with reduced thickness variation

A method of forming an insulating article from an insulating material having a first thickness, the method comprising:

• depositing the insulating material in a container with an opening;
• compressing the insulating material at atmospheric pressure to form a compressed insulating material having a second thickness smaller than the first thickness;
• and
• subsequent to the step of compressing, subjecting the compressed insulating material to a vacuum to form the insulating article.

A method of forming an insulation panel, comprising:

• providing a pre-sealed insulation panel having a first thickness, the pre-sealed insulation panel including a flexible container and an insulation material disposed within the flexible container, the flexible container including an opening;
• compressing the pre-sealed insulation panel to form a compressed pre-sealed insulation panel, the compressed pre-sealed insulation panel having a second thickness smaller than the first thickness;
• vacuuming the compressed pre-sealed insulation to form a vacuumed pre-sealed insulation panel;
• and
• sealing the vacuumed pre-sealed insulation panel to form the sealed vacuumed insulation panel.