CAN HeatBloc BE USED ON SIDEWALLS?
Yes, but HeatBloc is normally more effective when used under roofs. Roof surfaces are generally much hotter than sidewalls. Up to 80% of the summer heat gain is from above. Low e surfaces become more effective in controlling radiant heat transfer as the temperature of the radiant heat source increases. However, in tropical climates where no insulation is used in sidewalls, HeatBloc can substantially help increase interior comfort levels.