Folks, Since the benifets of having radiant barriers has been known, I have decided to become frugal and make some myself.
I bought 500 sq ft of barrier. delivered to me in TX for 85$. form some company in LA. ie. 17 cent/sq ft
now all the barier does is has aluminium foil for reflecting back the heat
see this demo
What I did was , I got a 500 sheet pack from Sam club for 11$.. it is
500 sq ft. and I got some discarded cardboard, boxes. etc.. mostly from Sams and stapled the foil sheets to one side. I am making the cardboard sheets. roughly the size between my drafters in my attic. 22 inchesIs there any dowside to this.? any extra hazard? will the contact between the corrugated sheets./cardboard and the foil/drafters. -be an achilles heel. IS there any REMOTE chace of a fire.
I check and see that the peak temp is like 150. F on the side of the foil. ie. between the foil and the roof. since that is where all the heat is radiated back.. I;ll add a pic of my home made sheets.
So I guess. I can bring the cost down for say 100 sq feet self made for only 3$ plus my labor. as compared to 17 $ for the barrier delivered
By the way. I checked for installation prices.. it is like 70 cents to
80 cents /sq foot installed.