Roofs with radiant barrier have the potential to lower the temp at night because the radiant barrier prevented the heat loss that would typically occur from the traditional mass insulation on the attic floor rising to heat the roof.
Will insulation against my roof damage the shingles.
Solar panels don t damage your roof when installed properly.
For most homeowners installing solar panels will not result in roof damage as long as your solar installer is a licensed qualified professional and your roof is in good.
The moisture is held in place by the insulation which allows for damage to the framing and other building components.
Insulating your attic with spray foam.
Foam insulation creates thermal resistance which is keeping that hot air out during the summer and your cool air inside.
Asphalt shingles are a good example of a material that can insulate well since they reflect out penetrative heat and will also keep ice dams from forming by retaining a good amount of heat as a barrier against freezing on the main structure of your roof.
The problem with the insulation against the sheathing expands.
Research conducted by the florida solar energy center shows that insulating the bottom of roof sheathing causes only negligible temperature increase in shingles.
Just like any home improvement project using the right service provider is essential to a rooftop solar job.
If there is a roof leak the insulation will be damaged by the water leaving you with less insulating value.
This is not significant enough to cause any damage to shingles.
What this study means is that you can insulate the roof deck of your home with foam insulation without any adverse effects to your shingles.