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A Solid Foundation: Choosing the Right Under Deck Roofing

In the world of roofing, there’s more than meets the eye.

Beyond the shingles and slates, there’s a critical component that often goes unnoticed but plays a pivotal role in your roof’s performance – the under deck roofing.

This invisible hero is the solid surface to which your roofing material is attached, and choosing the right one can make a world of difference.

Let’s look at what you need to know about under deck roofing.

Types of Under-Deck Roofing:

Lumber: Traditionally, softwood boards have been a popular choice for under-deck roofing. However, it’s crucial to use seasoned lumber to prevent shrinkage after attaching the roofing material.

For pitched or flat roofs, a 1-inch board will suffice, unless your flat roof doubles as a balcony, in which case thicker boards are necessary for added strength.

You can install under-deck roofing boards either horizontally or vertically, with the choice depending on your preferences and the prevailing weather conditions.

Plywood: If you’re working with a tight budget, plywood is a cost-effective and practical option. Opt for 4×8-foot sheets to quickly cover a large area.

Plywood’s ease of installation makes it a popular choice for underdeck roofing. The thickness of the plywood should align with factors such as rafter spacing, the weight of the roofing material, and the likelihood of ice and snow accumulation in your region.

Planks: When using planks for under-deck roofing, select those that are at least 2 inches thick and come with tongue and groove joints for added strength.

Planks are often employed in structures with low or nearly flat slopes. You’ll find laminated planks on the market, where the core consists of one type of wood, while the outer layer features a different type of laminated wood.

These planks offer an attractive surface if your structure has an exposed ceiling all the way to the decking. Some planks are crafted from all-wood fiber, boasting impressive strength, insulating properties, and resistance to weather and termites.

Choosing the Right Under Deck Roofing:

The choice of underdeck roofing material hinges on various factors:

In Conclusion

Selecting the right under deck roofing is a crucial decision in any roofing project. It’s not just about aesthetics; it’s about durability, insulation, and long-term protection for your home. 

Whether you opt for lumber, plywood, or planks, your choice should align with your budget and the specific requirements of your roofing project. Remember, the under deck roofing may be concealed, but its impact on your roof’s performance is undeniable.