It is a common misunderstanding that roof insulation is more important than wall insulation because heat rises hot air does rise but the temperature at your ceiling is at most a couple of degrees warmer than at the floor or walls.
Ceiling roof insulation foam.
Rigid insulation is one of the best tools to reduce your energy costs.
Rigid foam insulation also is a smart choice.
Best for floors foundation and basement walls interior and exterior wall sheathing and low sloped ceilings.
Rigid foam insulation also known as insulating boards provide high r values.
Technically known as spray polyurethane foam or spf spray foam is most commonly applied in the space between attic rafters.
Can be used to insulate almost any part of your home from the roof down to the foundation.
It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.
You can even place it under the foundation slab.
0 78 in x 8 ft x 4 ft styrofoam residential sheathing 15 psi 1 faced polystyrene garage door foam board insulation with sound barrier item 14545 model 202059.
0 78 in x 8 ft x 4 ft.
Dow froth pak gun hose assembly foam insulation kit.
Image courtesy of d7 spray foam insulation houston tx.
Looking upward through the open ceiling if the exterior wall and roof deck assemblies both contain spray foam then a continuous insulation and airtight layer is established from the base of the walls to the peak of the roof.
Ceiling insulation like fiberglass or cellulose slows the flow of heat at the ceiling.
It can act as an air and moisture barrier in addition to providing very high r value.
3 regarding roof insulation vs.
So to answer the two remaining questions.
Foam board insulation is easy to use and is a great diy way to add some insulation.
Spray foam insulation applied to your roof deck is superior to traditional ceiling insulation because it deters the heat before it enters your house.
A very energy efficient enclosure results.
So the heat loss from conduction is about the same.
Install it anywhere from the roof to the foundation.
Is 2 inches of insulation enough.
They keep your home at a comfortable temperature without the need to crank your heat.
Some types of thicker foam board insulation are available but they may need to be special ordered.
Better materials for attic roof insulation are rigid foam boards and spray foam insulation.
Let s start with how much insulation you should install.
Settled r values range up to about 6 5 per inch and when installed properly the foam can be a good air and moisture barrier.