If you have been considering a new roof installation looking into adding insulation to your home or are planning to build a new house you may have heard people talk about hot roof and cold roof systems.
Hot roof insulation system.
However you may not be familiar with these concepts particularly what they mean and the pros and cons of each.
Senior engineer manager at icynene john broniek makes the case for the unvented attic assembly and why insulating the underside of the roof makes sense.
Installing tapered insulation also negates the requirement for a structural roof fall helping to reduce the overall cost of the roof.
While some try to do this with fiberglass or cellulose their efforts are for naught and quite simply it is not allowed by any legitimate building code out there.
A hot roof is one where there is no ventilation required as the insulation is directly attached to the roof sheathing.
If you d like to learn more about using spray foam to create an unvented attic system for your home give us a call at 866 900 3626 or fill out the form on our website to.
Designs and houses with unvented roof insulation systems have also been developed and constructed in cold and mixed climates.
We provide data design suggestions for hot roof designs or for providing roof and ceiling ventilation and we describe roof roof insulation or venting system inspection methods and clues to detect roof venting deficiencies insulation defects and attic condensation mold or structural damage problems in buildings covered by an un vented.
Don t let that ominous hot roof label fool you it s one of the best options for your roof as it will save you from costly repairs from damaged caused by ice dams.
Over the past five years several unvented roof insulation systems have been developed by the building science consortium for use primarily in hot dry and hot humid climate zones.
By creating appropriate falls and drainage a flat roof is more likely to last for its designed life by channelling water to outlets efficiently.
The r value measures how well insulation is able to resist heat going through it.
A hot roof contains the highest r value because there are no chances for air to leak.
The benefits of a conditioned attic.
What is a hot roof.
The insulation used in those applications is tapered to provide positive roof drainage to roof drain points as well as to improve the building insulation system and cut energy costs.
Perks of a hot roof.
We do not consider this a good design for a pitched roof on a residential building as it converts the roof to a hot roof design shorter shingle life hotter.
The quest for greater energy efficiency in buildings has led to increasing interest and need for insulation improvements in hvac equipment more airtight construction new materials and assemblies.