Convection conduction and radiation.
Under roof reflective insulation.
Therma sheet used under your roofing system will help cut your summer air conditioning bills.
To be effective the reflective surface must face an air space.
Standard insulation products do not make claims based on the assembly.
Radiant barriers and reflective insulation systems work by reducing radiant heat gain.
The protection provided by a reflective barrier under a roof will degrade over time as dust accumulates on the shiny surface.
Dust accumulation on the reflective surface will reduce its reflective capability.
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.
This highlights a key problem with reflective products.
Performance claims are based on an assembly including an air gap and the perfectly shiny surface when the product is installed.
Reflective insulation is made from.
The idea is that this thin material can act as a type of insulation in tight spaces where you cannot put thick fiberglass insulation.
The radiant barrier should be installed in a manner to minimize dust accumulation on the reflective surface.
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.
Polyurethane spray foam metal roof insulation.
It greatly reduces attic heat gain making this space more usable and the rest of the house cooler.