The idea is that this thin material can act as a type of insulation in tight spaces where you cannot put thick fiberglass insulation.
Under roof reflective insulation.
Convection conduction and radiation.
Low e reflective insulation resists all three types of heat transfer.
Radiant barriers and reflective insulation systems work by reducing radiant heat gain.
It greatly reduces attic heat gain making this space more usable and the rest of the house cooler.
Performance claims are based on an assembly including an air gap and the perfectly shiny surface when the product is installed.
This highlights a key problem with reflective products.
Therma sheet used under your roofing system will help cut your summer air conditioning bills.
Standard insulation products do not make claims based on the assembly.
Reflective insulation is made from.
Found in major outlets such as in home depot s insulation aisle reflectix comes in tightly spooled rolls of 25 by 2 feet of shiny reflective foil look bubble wrap texture insulation in plastic bags.
Dust accumulation on the reflective surface will reduce its reflective capability.
It will help you to eliminate problems that may come when the house becomes extremely cold in the winter and terribly hot in the summer.
To be effective the reflective surface must face an air space.
The protection provided by a reflective barrier under a roof will degrade over time as dust accumulates on the shiny surface.
Polyurethane spray foam metal roof insulation.