baffle board at eaves

[line guy]

I am useing these foam poly insulation boards as a blocker for my vented eaves. I will have r19 behind them but not to the steel roof panel. Theres is about a 3 inch gap between tp of board to roof to allow for air flow. Will this work? Decided some more blocking with baffles from HD.

 

[The Cobbler]

how deep of insulation are you putting in? normally the baffles go up the roofline to prevent insulation touching the roof, and blocking off the airgap

 

[Jtrudel90]

So your just putting in batts ? Really for the added cost I would install a baffle like durovent it’s a lot easier now, your on the right track thou.

 

[brownbagg]

you doing it backward, the baffle board are design to keep the eaves from being block, the insulation goes under them, the baffle create a air flow channel from baffle to roof to ridge vent

 

[karoc]

See you have that Drip Stop on panels, how do you like it?

 

[matt_i]

Different style of build I think (stick vs. post frame) but I did the same thing.

I just glued in blocks of rigid foam. Loctite makes PL300 construction adhesive that doesn't attack foam.

In my case it acts as a blocker for the eventual loose-fill cellulose insulation to keep it from spilling out into the soffit cavity behind. The cellulose is placed on top of the eventual drywall.

I think if you did batts it would be very helpful in preventing the edge of a batt from being bathed by air stirring in the soffit.

 

[firebirdparts]

It'll work fine. 3" is plenty. I'm not sure you need it unless you're having insulation blown in, so I assume that's what you meant.

 

[line guy]

I am going to be blowing in 12+ of insulation, not batts sorry for confusion. Board is acting as a blocker and a space for air flow from eave to ridge vent. like matt i posted. The insulation will not touch roof. The cavity just behind board will have batt insulation for the wall portion. The eave vents will not be blocked at all. The drip stop roof panels work good, being in ny the humidity is not horrible. However my skylite panels sweated alot!To changed all of this would be alot of work, so if this achieves close to the same thing as installing baffles than I will keep this way?

 

[Toolfool]

Those insulation boards should be taller than 12" or the blown-in can overflow and defeat the purpose. That's why the baffles cover the area your panels are covering AND run up the roofline a couple of feet.

 

[Tduby]

When I did mine I stapled up the durovent then stapled fiberglass to stop the cellulose from blocking the soft

 

[CombatNinja]

As long as those foam boards are just above the height of your planned blown-in, you are all good. As an aside, your metal roof already has channels built into it that will act as vent baffles. You and several others are overthinking this.