So an individual need a new roof and are usually trying to decide whether or not necessarily to try plus save some money by having the new roof installed over a current layer of roofing. This technique will be quite common in many areas and several roofing contractors don't see any issue using this method and even have no problem attempting to sell house owners on a lay-over or even go-over as this particular technique is known as. They are inappropriate.
5 Top Causes A Lay-Over Or even Go-Over Can be a Negative Idea When Re-Roofing
1. ) Regions that have or even had leaks can't always be dealt with effectively
There is definitely a good chance that your good old roof had certain problem areas including probable leak spots, no matter if you noticed all of them delete word. Without getting off of Roofing services and properly discovering these types of trouble locations and determining where the leak seemed to be coming from plus traveling to it is impossible to inform just what areas of your roof may need some special consideration.
2. ) Virtually any rotted wood below the existing roofing will only find worse
There may be regions that have rotted wood hiding under the old roofing. These types of rotted areas have to be identified and changed before a brand new roof is installed. Obviously if your current roofing contractor is certainly only doing some sort of lay-over roofing set up then these rotted areas will remain covered up and even only get more serious as being the years get on. Also typically the nails holding down typically the shingles in locations with rotted real wood cannot properly carry out their job plus you have a much higher risk involving shingles blowing off in those areas.
3. ) Eaves, rakes and valleys need special therapy
This can be a big one. The eaves, rakes and valleys regarding your house need special attention any time your home's roof is being set up. This is specifically important in frigid climates like Massachusetts, where we have been positioned. In the winter time the eaves of your property are under attack by Mother Nature, whether it be through cool dams, snow create up, or perhaps the constant freezing in addition to thawing that takes place throughout the winter time of year. When a brand new roof is properly installed the roofing contractor needs in order to put new light weight aluminum drip-edge around typically the entire perimeter associated with your roof.
Next they need to apply a 3 foot wide part of ice and water barrier around the perimeter as well as in virtually any valleys on your current roof. Then that they can begin to install the new roofing. Without tearing off the original roofing there is no way to effectively install the new drip-edge or ice & water obstacle. On the lay-over variety of roofing mount, the roofing service provider is counting on the particular existing products around the home's roof to be able to still be finished to par and also handle the winter conditions. All too often the older products fall short whether it absolutely was since they have outlived their lifetime, were sub-par to get started with, or even they will were never at this time there to begin with (all to generally the latter may be the case with glaciers & water barrier).
4. ) Added roofing weight is no good for outdated rafters
One involving the more apparent issues with a lay-over re-roof is the particular added weight involving the extra coating of shingles. On most newer homes this is not an issue, even so many older home have rafters of which are considered undersized by today's framing standards. It is not necessarily unusual to see 2�6 rafter systems in many of these houses. Now in most situations the 2�6 rafter is undersized to begin with and you also surely don't want to be incorporating the weight of a new roofing level on top regarding an old roofing layer to these types of already undersized rafter systems. With newer roofs using 2�10, 2�12, engineered trusses, etc . the pounds isn't always since much of a great issue.
5. ) Shorter roof life expectancy
Most liable roofing contractors acknowledge that a lay-over roof will reduce the new roof's lifetime can be 25%. This fact alone means that anything you might include saved by doing a lay-over, as opposed in order to a tear-off and new roof install, was only a new short term cost savings. In addition, you now have a couple of layers of roofing that will need to be removed the subsequent time your roof is done and that will also add more cost to the job
Tear-Off After that Re-Roof Is definitely Excellent
Well, I recently gave you 5 great reasons to tear out of your old roofing after which install your own new roof. Sure Reroofing can become cheaper in the short term in order to do a go-over on your older roof, but, within the long name it will cost you more. All of us never recommend this particular technique to our buyers. We always suggest completely tearing of the old roofing, fixing any actual problems, then setting up a fresh, beautiful new roof of which will outlast any lay-over roof as well as far better protect our consumers'