Under Roof Reflective Insulation

Standard insulation products do not make claims based on the assembly.
Under roof reflective insulation. Fiberglass roof insulation works like a blanket spread over your house keeping thermal energy out during the summer and keeping the heat in during the winter. Performance claims are based on an assembly including an air gap and the perfectly shiny surface when the product is installed. 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.
This highlights a key problem with reflective products. Low e reflective insulation resists all three types of heat transfer. In order to add moisture barrier under metal roof you can spray the undersides of the roof by using a thick layer of polyurethane spray foam. Radiant barriers and reflective insulation systems work by reducing radiant heat gain.
Reflective insulation is made from. The radiant barrier should be installed in a manner to minimize dust accumulation on the reflective surface. The protection provided by a reflective barrier under a roof will degrade over time as dust accumulates on the shiny 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. Therma sheet used under your roofing system will help cut your summer air conditioning bills. It greatly reduces attic heat gain making this space more usable and the rest of the house cooler.