ThermaStop Thermal-Isolating Rain Screen Bracket

ThermaStop: A Revolution in Thermal Isolation for Rain Screens.

Introducing ThermaStop™, our proprietary thermal isolation system for use with Dow-Knight CI-System rain screens.

Positioned between the wall and the wall brackets of a Knight rain screen, ThermaStop significantly reduces thermal bridging at that point of contact by isolating the bracket from the wall, a particular area of the building envelope that can potentially contribute to heat loss and gain.

Thermal models indicate that the use of ThermaStop in rain-screen construction delivers an increase of effective R-value on an average of 35-70 percent over conventional aluminum-brackets and continuous furring strips respectively. And the more insulation that’s used, the better the isolator performs.

A four-piece system constructed of Galvalume-coated steel brackets with a highly durable polyacetal plastic base and 1/8-inch plastic washer, ThermaStop reduces the contact between the wall and the rain screen, with only a ribbed area of the isolator’s base touching the wall. There is no metal-on-metal contact at all, which is the key to its effectiveness. All metal fasteners are isolated and heat or cold transfer is significantly reduced.

Knight’s ThermaStop takes up a smaller footprint than the more common aluminum wall brackets, and steel does not conduct heat nearly as well as aluminum, all lending to its increased thermal performance.