Hi
I first go over the floor with a clean rage damp with varsol
Open the doors and windows
Make sure you have no open flame
And then I use MOP & GLOW
Let me know what you think?
Hi
I thought I would drop a line or two because this may be your undoing
If you chose to be ill advised
You need to check a span table to determine what lumber you will need
#1 what are the existing rafters constructed of 2"x4" - 2"x6" etc.?
#2 what is the widest span?
#3 is it a...
There is a system exactly for your needs
It is the Unico System
I advise you speak with them on the details of your application
Unico System Inc. - Small Duct High Velocity HVAC The Unico System