How do radiant barriers work.
Roof radiant barrier specs.
This helps improve energy efficiency of the home.
So you want r value on your attic floor and radiant barrier at the roof.
How radiantguard radiant barriers benefit you.
Not just absorb or slow it down like other forms of insulation.
Since radiant heat is in a waveform it can be reflected.
Lo mit s low emissivity and high reflectivity provide paintable radiant barrier technology to a wide range of substrates and geometries.
When utilizing osb radiant barrier sheathing you can reflect up to 97 of solar radiation which translates into an attic heat reduction of up to 30 f.
Considerable better than the doe s radiant barrier minimum classification requirements.
Radiantguard radiant barriers reflect block radiant heat.
Radiant barriers are a reflective foil insulation that reduces heat transfer into attics.
Benefits of radiant barrier sheathing.
The radiant barrier reflects 95 of the radiant heat back to the roofing materials which then emits over 90 of the heat out the roof almost instantly.
A radiant barrier works best when it is perpendicular to the radiant energy striking it.
The industry standard in heat reflecting coating technology.
Installed in over 1 5 million homes in the united states lp techshield panels also lower attic temperatures up to 30 f.
A cooler attic space means less heat moving to the cooler space below the attic.
As the original 1 brand of radiant barrier sheathing lp techshield panels vaporvents technology prevents moisture buildup during and after construction while blocking up to 97 of radiant heat in roof panels.
But there are actually many cons to radiant barriers that are not discussed.
The problem with putting any r value on a roof is that the roof is normally not really part of the thermal envelope.
When placed directly against another material these barriers actually promote heat transfer by conduction instead of blocking or reflecting it away.
To meet astm c1321 standards irccs must have an emittance rating less than 0 25.
A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic.
The thermal envelope is usually your walls and ceiling.
To perform properly radiant barriers must be installed facing an open air space.
High temperature tolerance superior flexibility and ease of use allow for applications in many varied industries to reflect light and heat.
Radiantguard radiant barriers have an emittance of only 3 5 and a reflectance of 95 97.
Also the greater the temperature difference between the sides of the radiant barrier material the greater the benefits a radiant barrier can offer.
So this begs the question are radiant barriers truly worth it.