When the roof on your commercial building is in need of attention, there are a number of options available to you. Smaller, localized issues can usually be handled with repair by a roofer. Yet more widespread concerns may need more. Although the preferred way to handle age and other widespread problems on commercial roofs is with a new installation offered by roofer services, there are times when re-roofing might be suitable. Before you choose this option, consider the three important factors referenced below.
Number of Layers Present
The first question you and your roofer services must answer before you consider re-roofing your commercial building is how many layers are already there. Standard building code states that roofs may only have a total of two layers. This restriction is to prevent potential structural failure, wind damage, and other problems that can arise when multiple layers of materials are installed over each other.
In addition, materials manufacturers will not warrantee their products when installed over more than one existing layer. Some even specify that materials must be installed directly to the decking and must not be layered. As great as the cost savings may be to cover up old systems as a solution for your need to repair your roof, this should only be done when only one layer is already present.
Type and Condition of the Decking
If you do determine that there is only one system installed and it is possible for roofer services to add another layer, the next concern is the type of decking on the building and whether a second system can be attached. Your decking may be made of wood panels, metal, concrete, gypsum, and other materials.
Each of these materials has different installation and adherence requirements that affect the structural integrity of the system, wind lift concerns, and the ability to actually fasten more materials on top of older material. Before proceeding, your roof repair company must determine the type of decking that lies beneath the original system, its condition, and whether it is possible to securely add another layer on top.
Type of System Required
Your decision to re-roof instead of replacing your roof must also address the issue of compatibility between the system you want to add and whether it can be installed over the current one. Considering the issues mentioned above, the new system must not be so heavy that it poses a structural hazard. It must also be able to be fastened to the current decking and certainly serve your own needs for the building.
To a certain extent, re-roofing gives commercial building owners a chance to add more functional roofs to their buildings; however, there may be some limitations. You may wish to install a more durable membrane system, an energy-efficient TPO system, or some other system that is more suitable for your building. The ability to do this depends on whether there is a safe way to fasten the new system over the old one. Although there are many choices of commercial systems, some may not be recommended for this type of application.
There is no doubt that when it comes to roofer services, re-roofing can be a more economical choice over a full tear-off and replacement. Yet this method of roof repair is not ideal and should only be done under the right conditions. Commercial roofs are expensive;however, they do protect your investment. To make the best decision, discuss your options and if re-roofing is possible with a qualified roofing contractor!
