Building Exteriors, Building Relationships 228-432-4067 | 601-342-0979

Can you Put Shingles Over an Existing Roof?

If you’re considering a roof replacement for your home, you may be wondering if it’s possible to install new shingles over an existing layer of shingles. Let’s explore this topic to determine if it’s feasible and how Reliable Roofing & Construction in Hattiesburg, MS can help.

When it comes to whether or not you can lay new shingles over old ones, the short answer is yes. However, there are some factors that must be taken into consideration before making a decision.

Should You Have New Shingles Installed Over Your Existing Roof?

Generally speaking, it’s recommended that when replacing a roof, two layers of shingles should not be installed at the same time. Instead of adding more layers on top of each other, contractors typically tear off the old layer before installing the new one. This not only gives them a chance to inspect the deck and make sure any necessary repairs are made but also ensures that proper ventilation is provided by allowing airflow between the deck and underlayment materials used below each course of shingles.

In cases where multiple layers are present and still in good condition (i.e., no signs of curling, buckling, missing granules), homeowners may choose to keep them in place as long as their roof decking is sound and meets local building codes for thickness and spacing between rafters/joists. Adding more layers will add additional weight to your roof system which could compromise the structure if it doesn’t meet code requirements. If this is determined by an experienced contractor such as those at Reliable Roofing & Construction in Hattiesburg, MS then keeping the existing layer might be possible depending on what type of material were used for construction originally which will depend on age etc…

Benefits of Installing New Shingles Over Old Ones

One major benefit of installing a new layer over existing shingles is cost savings due to labor being reduced since there won’t need to be any tear-off work done beforehand. Additionally, homeowners may also save money on disposal costs since they won’t have to pay to have their old material removed from their property. Finally, laying down another layer usually provides extra protection against leaks or water damage since this acts as another barrier preventing moisture from entering through exposed areas or weak spots in seams between courses – especially helpful during seasons with heavy rainfall or snowfall!

Final Considerations Before Installing New Shingles Over Old Ones

Before committing to having your rooftop covered with two layers of shingles, there are some final factors that need to be taken into account including:

  • The existing condition of your existing layer(s) – Is it still structurally sound? Are there any signs of damage such as buckling or cupping?

  • The maximum number of layers allowed by local building codes – Two-layers may be okay but three might not be so check ahead!

  • If granules worn off expose asphalt beneath them- This can cause problems because hot temperatures can cause these exposed surfaces become brittle leading cracks or breaking loose pieces off which isn’t good for your roof health!

  • The impact added weight might have on your overall structure– Again could cause issues if structural integrity isn’t up par given addition stressor due too extra weight being added

  • Local climate conditions – Some climates might require specific types/brands/styles/etc…of roof material so look into what would suit best for where you live!

By taking all these factors into consideration before beginning a reroof project where two layers of material are planned out makes sense financially and safety wise which is why professionals like those at Reliable Roofing & Construction in Hattiesburg, MS take time understanding customer needs while providing complete satisfaction guaranteed services with continued support after job completion

How to find us: