Rothoblaas Thermowasher

Rothoblaas Thermowasher pairs with a standard wood screw to hold insulation in place, then closes over the screw head so the fastener does not become a thermal bridge.

What it does

A built-in cover closes off the hole once the screw is driven. Open spaces across the 65 mm polypropylene disc let plaster key into the washer, and the design resists the screw backing out.

When and where to use it

• Fastening insulation to timber on any insulation type
• Use with HBS screws, 0.24 in or 0.32 in diameter
• Choose screw length by insulation thickness
• Sold in boxes of 700