Your chance to win an entire home’s worth* of ROCKWOOL stone wool insulation

Caleb Mannon, Carpenter at Credence Construction LLC in Duluth, Minnesota

Enter for a chance to win ROCKWOOL stone wool insulation

R‑Class Builder Exclusive Sweepstakes

By joining the R‑Class Builder Program, you unlock access to resources and events, including our exclusive Won & Done Sweepstakes.

By entering, you’ll receive a chance to win ROCKWOOL stone wool insulation for your next build, so you can try a high-performing product that can help save money and energy without any changes to your budget. We will be awarding two lucky R‑Class builders each a prize, consisting of an entire home’s worth* of ROCKWOOL stone wool insulation.

Prize Period 1
Begins 12:00:00 AM ET on February 25, 2025
and ends 11:59:59 PM ET on July 31, 2025
Draw date: August 07, 2025

Prize Period 2
Begins 12:00:00 AM ET on August 01, 2025
and ends 11:59:59 PM ET on December 31, 2025
Draw date: January 07, 2026

*See rules for complete prize description below.

First, become an R‑Class member