New Roof

[saxman14701]

Have a quick question. Planning on doing a roof-over this summer after re-leveling my home. Would it be a waste of time and money to double the thickness of the 1 x 4 furring strips and insulation to 2 inches before attaching the metal roofing?

[Greg]

When it comes to the insulation factor, I doubt that the increase in cost would be a waste of money, The labor time would be the same, so it's just the extra price of the insulation. Go for it!! Greg

[Rod]

Hello!

Just remember the thicker the lathe you lay down the longer the fastner has to be. We use 3" ring shank nails.(with a Bostich stick nailer) So if you have 2" thick lathe that only leaves 1" for bite into the truss. Not enough in my opinion.

2 options.

1. If you really want to use full 2" you should scew the lathe down with 4" screws. Draw back is very time consuming vs pneaumatic nailer.

2. Split the difference. Use a 2x4 for your you lathe. At 1.5" thick
that leaves another 1.5" for bite with the nailer. Use a good quality foam board. There are some foam boards @ 1.5" = R10 check with local suppliers to what they have.

Also you can by pre-made wide face drip edge to cover the 2x4 as it has a 1.5" face. If you go thicker you will have to buy the product from the fabricator $$ or bent it your self on a brake

Good Luck

Rod

[saxman14701]

Thanks for the input. I thought about using a 2x4. After your response I think that will be the option I use. Thanks for your help

[Rod]

Happy to Help. Good Luck. Take some pics.

Rod