Traditionally, tar paper was the preferred underlayment material for the majority of residential roofs, due to its inexpensive cost and easy installation techniques. The majority of asphalt shingled roofs feature this product, and it is still a frequently installed material. However, this type of material is more prone to a unique set of shortcomings, including its tendency to curl and its inefficient seam sealing capabilities. If inclement weather strikes the area, it is not uncommon for tar paper to experience damage from high winds and heavy rain. If water is able to get past the roof's exterior defense barrier, it can easily seep underneath the tar paper and lead to moisture problems developing inside the home, such as water leaks, mold and mildew growth and rotted drywall.
For all of these reasons, more and more Newton roofing contractors are resorting to installing a more durable underlayment on new roofs. Peel and stick underlayments were engineered to address the specific limitations that tar paper features. As long as the material is properly installed, it can provide years of protection for the roof.
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This type of underlayment can be applied on the entire surface of the roof in order to achieve maximum protection, or it can be applied in specific areas that are more prone to water leaks and ice dams such as the eaves and valleys.
Since a peel and stick underlayment is self adhesive, an added bonus is that contractors do not have to use any nails during the installation process, which further reduces the potential for water leaks to develop. The general rule of thumb when installing a new roof is the fewer the penetrations, the less chance water will have to get inside the home. It is also incredibly flexible, so it is much easier for contractors to work with than tar paper, and it seamlessly fits around harder to reach areas like the ridges and hips.
A peel and stick underlayment is not susceptible to tearing, so it helps to provide a more consistent level of protection during the construction process, and it is more reliable in severe weather. Most types feature a nonskid surface that helps to prevent falls during the installation process. As with any type of roofing material, whenever contractors install a peel and stick underlayment, they will first ensure that the entire area is thoroughly clean and free of debris so that the material will be able to better stick to the roof deck.