When it’s time to replace your roof, homeowners often face a critical decision: remove the existing layer or opt for a roof-over. Roofing over a current top involves adding a new layer of shingles on your existing one, a decision influenced by several factors such as the roof’s condition, the type of roofing material, and the roof structure itself. This article dives deep into this roofing approach, exploring its benefits, drawbacks, and key considerations.
The Decision: Roofing Over an Existing Roof
To roof over an existing roof means installing a new layer of shingles over the old shingles.This approach can be appealing due to potential cost and time savings and the additional protection on your roof that the extra layer can provide. However, like all construction decisions, it’s not without its pros and cons. Nonetheless, it’s important to note that this construction decision, like all others, has its advantages and drawbacks. Careful consideration of factors like existing roof conditions, weight capacity, and local building codes is vital before proceeding with this method.
Evaluating the Current State: Condition of Your Roof and Roofing Inspection
Before deciding to install a roof over an existing one, the condition of your current roof must be assessed. This evaluation should look for signs of damage, such as buckling shingles, leaks, or damaged flashing.A thorough roofing inspection by a professional can provide an accurate assessment and advise if a roof-over is a suitable choice or if a full roof replacement, involving the removal of the existing layer, is necessary. However, if the inspection reveals significant issues such as extensive water damage or weakened structural supports, the professional may recommend a full roof replacement, which would require the removal of the existing layer to ensure a durable and safe solution.
Material Matters: Type of Roofing Material and Types of Roofs
The type of roofing material is vital in deciding to roof over an existing roof. Typically, asphalt shingle roofs are well-suited for a roof-over. However, when it comes to other types of roofing systems, such as tile or wood, the weight, and structure of the existing shingle roof may not be conducive to an additional layer. Furthermore, not all shingles are created equal, and the compatibility of the current layer with the new shingles should be considered.
Weighing it Up: Roof Structure and Roof Layer
Your roof structure’s load-bearing capacity is another critical aspect. Installing a roof over an existing one adds extra weight. If the roof structure cannot bear this additional load, it could lead to structural problems.
Moreover, an additional roof layer may conceal potential issues with the existing shingles or underlayment. This could allow small problems to develop into more significant ones over time, leading to more costly repairs.
Implementing the Plan: Roof Installation and Roof Repair
Once you’ve weighed the pros and cons, and have decided to proceed with a roof-over, the process of roof installation begins. The existing shingle roof is prepared to receive the new layer, which may involve minor roof repair to ensure the new shingles lay flat and secure.
Professional roofers experienced in roof-overs are indispensable at this stage. They can ensure the new layer is installed correctly, preventing potential problems and ensuring the longevity of your new roof. Their attention to detail guarantees the correct installation of the new layer, ultimately safeguarding the longevity and durability of your brand-new roof.
Long-Term Investment: Roof Needs and Future Care
With the new roof installed, the focus turns to maintenance. When needed, regular inspections and prompt roof repair can prolong your roof’s lifespan and keep it in good condition. The roof-over approach does not exempt you from caring for your roof needs; it simply provides an additional layer of protection.
Add New Roof Shingles Over Old?
Adding new roof shingles over old ones, also known as a “roof overlay” or “re-roofing,” can be a convenient option in some cases. It saves the labour and cost of completely removing the existing shingles. However, this approach has considerations. The added layer might not allow for proper inspection and addressing of underlying issues like rot or damage. Moreover, the additional weight could strain the roof structure. Building codes often limit the number of layers. While quicker and more cost-effective initially, it’s crucial to consult a roofing professional to determine if this method is suitable for your specific roof condition and local regulations.
Concluding Thoughts: Is Roofing Over an Existing Roof Right for You?
In conclusion, roofing over an existing roof can be a practical and cost-effective solution for many homeowners. Yet, it’s crucial to consider all the factors involved, such as the condition of the existing roof, the type of roofing material, the capacity of the roof structure, and potential future repair needs. A well-informed decision, coupled with professional advice, can ensure that you enjoy the benefits of your new roof for many years. Remember, your roof is a crucial barrier against the elements, and its care and maintenance should never be compromised.