Nothing unusual about that.
How to install spray insulation in attic.
It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing.
A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents.
When you reach a wall pull the insulation back over a joist lay a level over the insulation and cut across the level.
One of the high tech insulation products being utilized these days is a foam spray product called icynene which is a foam that starts as two liquid components a and b if you will that are heated up and sent through two hoses and meet at a tip of a gun where the magic begins.
If installing shredded insulation fill the attic space at least 15 inches high with insulation.
Put a dehumidifier up there plug it in set it between 50 and 60 rh and forget about it.
Move across the attic until you ve hit your desired height at every point.
Blow in insulation until the hopper is empty.
Lower your energy bills by following these easy steps to insulate your attic using cel.
After from sealing things up and fixing your pressure balance this is usually the best solution to high humidity in a spray foamed attic.
Work your way across the attic until you are back at the attic access.
When we seal the attic with spray foam it s as tight as a butter tub.
The attic is by far the most important space to insulate in the house.
One huge benefit of the spray foam insulated attic is that conditioned air leakage from the ac furnace duct system is contained and used to condition the attic.
If installing fiberglass mats start by laying the mats at the furthest point from the attic access.
Then pivot in place and do the same thing to the other side.
Whereas too little spray foam insulation can leave for thermal bypass because of the complete lack of insulation in the attic.
Moisture is also another huge issue when it comes to spray foam insulation in an attic.
A dehumidifier can remove it.
However in a traditionally insulated attic insulation on the ceiling the attic is vented.
This will give you support to make a straight and even cut.