The cover board in a roof system is the final layer upon which the roof cover will be placed. Cover board can serve many different purposes. They can protect the insulation from foot traffic, enhance the bond between the roof cover and the substrate, and result in enhanced wind uplift resistance. Cover boards can also enhance fire resistance, provide hail protection, provide a substrate for roof cover adhesion if the insulation is not compatible with the adhesive being used, and reduce energy loss. Overall, the use of a cover board can improve the roof system performance.
In choosing a cover board to be used with a roof system, the selected cover board must be compatible with the roof system chosen. It must be compatible with the roof cover that will be part of the roof system as well as compatible with the attachment method. The conditions, building type, time of year during installation and weather conditions must also be considered.
There are several types of cover board currently available. Some roof systems will use glass mat faced or fiber reinforced gypsum. High density wood fiber, high density polyisocyanurate insulation, and perlite are other options. Other systems may use plywood/OSB board, cement board or asphaltic core board.
Another consideration when using cover board is the attachment method. The attachment of the other components of the roof system, as well as the system of attachment for the cover board, must all be compatible.
If you want more information about cover boards or would like an estimate for roofing or gutter installation or repair, please visit our website at www.apextx.com, call us 817-239-8744 or view our YouTube Channel at http://www.youtube.com/user/ApexRoofingInc.
