A1 Roofing Romford

As a homeowner in Havering, you may be wondering if it's possible to felt over old felt on a shed roof. At F & M Roofers, we've encountered this question numerous times, and we're here to provide you with the answers.

Felt roofing is a popular choice for flat roofs, including sheds and garages. It's a cost-effective and durable material that can withstand various weather conditions. However, over time, the felt can deteriorate, and you may need to consider replacing or overlaying it.

The answer is yes, but with some caveats. Felt can be overlaid, but it's essential to ensure that the old felt is still in good condition. If the old felt is damaged, rotten, or has significant gaps, it's recommended to replace it entirely.

Before overlaying new felt, you'll need to inspect the old felt and make any necessary repairs. This includes checking for damaged or missing nails, ensuring the roof is clean and dry, and applying a new layer of underlay material, such as roofing paper or tar paper.

To felt over old felt, you'll need to follow these steps:

1. Inspect and repair the old felt.
2. Apply a new layer of underlay material.
3. Measure and cut the new felt to size.
4. Apply the new felt, ensuring it's securely fastened with nails.
5. Apply a second layer of felt, if desired, to create a more durable roof.

While it's possible to use a single layer of felt, we recommend using two layers for added durability. The first layer provides a base, while the second layer offers additional protection against the elements.

If you're considering replacing your shed roof entirely, you may be wondering whether to use shingles or felt. Both options have their advantages, but felt is generally more suitable for flat roofs.

If your shed roof is relatively new, overlaying the old felt might be a cost-effective option. However, if your roof is old or damaged, it's often better to replace it entirely with new material.