Spray foam insulation doesn t protect attic spaces from radiant heat but does protect them from convection and conduction.
Radiant barrier foam board insulation.
Foam insulation most commonly comes in two forms.
Excess moisture can cause mold mildew odors decay fungus growth and wood rot.
The rigid foam insulation addresses the conduction and convection and adding a radiant barrier addresses radiation you ll find that adding a radiant barrier is best practice but only when there is an air space.
Reflectix insulation has over 20 energy saving applications for reflectix insulation has over 20 energy saving applications for around the home.
They don t however reduce heat conduction like thermal insulation materials.
From a hot roof but the issue is efficiency vs cost.
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The barriers consist of a highly reflective material that reflects radiant heat rather than absorbing it.
Radiant barriers are installed in homes usually in attics primarily to reduce summer heat gain and reduce cooling costs.
Radiant barriers can have an impact on heat gain e g.
The list of uses includes crawl space radiant floor attic and walls.
Typically sold as sheet insulation in a standard size of 4 x 8 foam insulation panels can help reduce energy costs get a handle on moisture control and more.
In the summer radiant heat is the biggest contributor to heated attic spaces so spray foam insulation may not be as effective in keeping attics cool.
This allows moisture to seep in.
Insulation foam boards don t work on uneven walls basement walls often have contours where a 4x8 foam board won t fill the gap.
0 i live outside phoenix az and i have a flat roof that will be redone no attic.
R5 radiant acoustic insulation kit stc 19 5 piece model sb12akit.
Foam insulation rigid boards are 4 x8 sheets usually cast of closed cell polystyrene designed to fit directly inside walls against the interior or exterior of plywood sheathing as well as on top of sub floors.
If your garage roof was insulted with standard foam board spray foam rock wool bats or even fiberglass bats or panels the insulation would be more effective for less cost year round.
Our product is easy to handle and install.
Atticfoil is a perforated radiant barrier so it can handle the regular amount of moisture that naturally passes through the sheetrock and insulation but it could be overloaded if you have a large source of warm moisture laden air.
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