The R value of insulation made from HDPE plastic grocery sacks at a density of 151 bags per cubic foot will be greater than R 13.
Polyethylene or PE bags are the most common plastic bags in the US (Film and Bag Federation). We estimated that a material averaging 1/4 bag per cubic inch will exceed the standard fiberglass batt insulation resistance value of 3.14/inch.
Questions of inquiry: 1. can reused plastic bags replace standard fiberglass insulation? 2: How can we approximate the R-value of an experimental material without a budget of $300,000?
Hypothesis