plywood attic floor over insulation
You put the insulation down first and lets say you have 2x8s for your floor joists in the attic. However there is 1 plywood floor already laid on 70 of the attic.
Reflectix 24 In X 25 Ft Double Reflective Insulation Roll With Staple Tab Edge St24025 Home Insulation Reflective Insulation Attic Renovation
And even 12 thick plywood is strong enough for any lofty living space.
. Plywood attic flooring is similar to engineered wood flooring in that it is made up of multiple layers. It will also make the attic a safer place in which to walk. Its possible that theres wiring running under the insulation and over the joists so you need to watch out for that as well.
It was like that for decades. Take a look around the attic. The roof will be a 1012 gable with a metal roof.
My attic used to have blown-in insulation with plywood sheets and planks here and there for access and storing junk atop 2X4 ceiling joists holding up a plaster and lathe ceiling. That was my question. I also have a plywood floor over most of my attic want.
Add insulation in the attic. Also make sure the existing insulation isnt extending over the top of the joists. You can attach a grid of furring strips on top of the existing plywood and cut the foamboard to fit between the strips then lay down a sheet of thin plywood on top of that.
So you can put 8 inches of insulation down then put the plywood over that. The joists are 2x8 and there are two rooms in the attic with hip walls. Its an interesting exception.
Your only concern might be where there is a recesseced light fixture in the ceiling and heat needs to escape. Otherwise this is just a common attic floor and of no concern. There are millions of homes with attic floors and insulation between them and the ceiling below.
Leaving part at R-19 is fine the rest will still be beneficial. Cons of PVC Attic Flooring. Through a Massachusetts Energy Saving Program I can get all the cellulose insulation and labor at a really good price but I will have to pull up the floor and raise it with either 2x4s or 2x6s for them to add the insulation then I will put the floor back.
To save money and reduce the amount of conditioned space we would like to insulate the attic floor and leave the attic space unconditioned. That way the furring strips support the plywood overlay and it wont smash the foamboard. Before laying plywood over an insulated attic floor take a look at the existing insulation.
Technically you should pull the plywood but adding insulation above will actually keep the wood warmer and reduce the risk of condensation. We are attempting to build with minimal or no foam use. That way the furring strips support the plywood overlay and it wont smash the foamboard.
If so you may need to spread it around as compressing it will cause it to lose its R-Value. In Zones 4 through 8 if you have full-height insulation over 100 of the ceiling including the top plates as shown in your excellent guide here the IECC allows R-38 rather than the R-49 that is required if you cant achieve full depth insulation over 100 of the attic floor. It can melt in temperatures which means that it is not recommended for garages or attics that will often become hot and humid.
I have seen instances where the underside of that plywood is actually wet but every home will be different. Now in your particular part of the country youre going to want a lot more insulation. While OSB board is heavier than plywood it is undoubtedly a better option for your attic.
But plywood can feel a little too bouncy underfoot. However we would like to sheath the attic floor so we can use the space for storage. LoftZone gives you a strong storage platform above even thick insulation in your attic.
Watch this easy DIY guide on how to fit an attic sub-floor and boards. If it is batts make sure the paper side is down. A few cons of PVC attic floors include.
Plywood Attic Floor Over Insulation. Cut a board or two to leave in the attic as portable working surfaces so I have a place to either sit or kneel as needed. Most likely remove the current mess and add new R-49 faced fiberglass.
Raised Attic Flooring and insulation in DublinTurn that dirty old attic space into a safe useable area with our fixed price flooringWe use only the best tre. Make a few upside down Y saddles with 2X6s to support some plywood for storage flooring. Dont be confused you can still happily use plywood for your attic floor.
I do agree that 2x6 joists are not real strong so dont use 34 plywood. Wed like to throw some plywood in the remaining attic space to use for storage right now one section has a loose insulation about halfway up the joists the other side has rolled r19 pink stuff along the joists sometimes over the top of it. You can attach a grid of furring strips on top of the existing plywood and cut the foamboard to fit between the strips then lay down a sheet of thin plywood on top of that.
No thats the wrong order of events here Velma. Once the insulation is down you can turn your attic into valuable storage space by covering the floor with plywood.
Insulating The Room Over The Garage Attic Flooring Custom Shutters Garage Attic
How To Blow Insulation Onto An Attic Floor And Cover It With Plywood Flooring Blown In Insulation Plywood Flooring Attic Flooring
Laying Loft Flooring Loft Boards Attic Flooring For Storage Diy Doctor Attic Flooring Attic Storage Attic Rooms
Insulated Floor Joists Attic Renovation Floor Insulation Attic Remodel
From Mind To Machine Attic Catwalk System Attic Access Door Attic Flooring Diy Attic Flooring
Attic Decking Kit For A Storage Floor Above Deep Attic Insulation 8ft X 8ft Kit Amazon Com Attic Storage Attic Insulation Attic Flooring
Easy Attic Flooring With Attic Dek Attic Flooring Attic Remodel Attic Renovation
What Size Plywood For An Attic Floor Attic Flooring Attic Renovation Attic Remodel
Great Attic Storage Ideas Life Creatively Organized Attic Flooring Garage Attic Storage Garage Attic
Quick Informative Video On How To Insulate Your Attic Floor Attic Rafters Or Attic Rafters With Baffles Attic Remodel Attic Flooring Attic Design
Loftzone Storefloor Kit Medium Attic Storage Attic Flooring Attic Rooms
Are You Looking To Improve The Insulation In Your Attic Effective Attic Insulation Keeps The Warm Air In Your Attic Insulation Loft Insulation Diy Insulation
Loft Flooring Support Leg 175mm Pack Of 12 Loft Flooring Attic Flooring Diy Attic Flooring
What Size Plywood For An Attic Floor Hunker Attic Storage Attic Flooring Attic Remodel
Thinking About Adding Attic Flooring For Extra Storage Space Putting In An Attic Floor The Wrong Way Could Weake Attic Flooring Loft Flooring Attic Insulation
Attic Catwalk System Attic Flooring Diy Attic Storage Attic Flooring
View Our Storefloor Video Discover The Easiest Way To Create More Attic Storage Above Insulation Raisedatticboardin Attic Storage Loft Storage Loft Flooring
Spray Foam In Between Attic Joises Stuff Insulation Between Ceiling Beams In Attic Lay Plywood Base In Attic Attic Flooring Attic Lighting Attic Design
Finished Attic Advice Insulating A Finished Attic Wall Insulation Diy Chatroom Attic Renovation Bungalow Interiors Floor Remodel