Installing Decra on a metal deck


#1

I have never seen it before but I am looking at a church roof with a steel deck and they want to put on Decra Tile and some sort of insulation. Any of you ever done an application like this.


#2

I have been pushing Decra a lot latley but I dont know how that would work on a steel deck. I have a meeting scheduled later this week with the rep for that. I will try to remember to mention how it would work out. I would assume the same??


#3

Decra is a great product that will work well over any type of substrate, given correct preparation.

Make sure to use a good underlayment, use appropriate horizontal battens, as recommended by the manufacturer, and go at it ! :slight_smile:


#4

yeah put on battens and put your insulation inbetween
them. then screw em one.

good luck.

gweedo.


#5

[quote=“gweedo”]yeah put on battens and put your insulation inbetween
them. then screw em one.

good luck.

gweedo.[/quote]

You are saying put battens on top of say iso board or vice versa? I suppose the 5" fascia would be big enough to cover the edge.


#6

scew the battens to the metal deck, and then fill in
the space inbetween with insu. if you can.

gweedo


#7

Im waiting on a call back from Decra, but Im thinking if you screw down the iso then put down an underlay, then battans and then go to work. I think a 2 inch #12 screw would be enough to go all the way to the deck from the panel


#8

HI,

Try a vent board it has poly iso and osb all in one. It also provides good ventilation.


#9

I would determine how much insulation is wanted. If the roof is the main insulation, you would want multiple inches of iso board, then sleepers and then battens.

If I wanted just a single layer of iso, I would lay a sleeper at the bottom for perimeter securement, run the ISO board vertically, with sleepers in between, running vertically, and lay the battens horizontally.

Simplest way I can think of.