This house had rectangular roof vents roof jacks that went along about 2 feet below the ridge of the roof spaced about every 10 feet or so.
Insulation a attic with no acess.
Even if you find a way to insulate the flat ceiling you have all of the disadvantages of an attic with none of the advantages.
The good thing about an attic is you can inspect roof leaks and correct insulation flaws.
You have to be able to access the attic but an attic access puts a hole in the layer of insulation covering the attic floor.
However there s a problem.
Stack insulation batts on top of the duct tape so they extend about 1 in.
Don t worry you don t need to fill your entire attic with insulation.
This means while your insulation in the attic may slow the flow of heat via radiation it will not stop air flow from the living space which carries heat via convection if there is a path for air to travel.
To slow heat transfer through a home builders install a layer of insulation on the floor of unconditioned attics.
The easiest way to insulate a low slope roof assembly like yours is to install one or more layers of rigid foam insulation or alternatively mineral wool insulation above your existing roof sheathing followed by a cover sheet and new roofing for example epdm roofing tpo membrane roofing or pvc membrane roofing.
Do not blindly blow in insulation.
Why not clean out a closet for a day cut yourself an access panel near the middle of the house and inspect.
To keep the blown in insulation from falling through the attic hatch opening make a 2x12 dam around the hatch perimeter.
Purchase an 8 piece of trim tack it up around the area you cut caulk the outside and weatherstrip the overhand and close it up.
For diy attic insulation you ve got two choices.
That reminds me of a home we insulated about 10 years ago.
Then to really seal the attic access up tight says olson lay fiberglass batt insulation on the inside of the hatch or door and wrap it up tight like a christmas present photo 3.
With no access there s no way to gain these advantages.
In fact there was no attic access.
So what to do.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Both can be added to uninsulated attics or layered over existing material.
Otherwise you have provided easy access for theft through the attic access openings of any adjacent units.
The rule here is simple.
Loose fill or batt the common term for blanket insulation.
Most insulation i find in the attic of homes is air permeable air can travel through it.
It will be a waste of money time and potentially cause serious problems.
This creates an insulated attic access door.
4 if the house is mid century modern style with a flat or shed roof there may be no attic.