Commercial Roofing Guide to Installing Modern Layered Roof Systems

Posted on: 28 June 2021

The commercial roofing materials that are commonly installed on businesses are modern layered systems. Each layer of the type of roofing system you have installed serves a different purpose. The first layer of the built-up roof provides a solid surface, while the additional layers give the roof form, insulation, and an impermeable finish. The following commercial roofing guide will give your business a durable new layered roof system:

Roof Deck Sheathing Layers

The roof decking is the first layer of materials that your roofing system is going to need. Today, roof deck materials can be metal, plywood, or composite sheathing materials. These can be corrugated metal surfaces covered with rigid sheathing or conventional plywood decking materials like those installed on homes. These layers of sheathing on the roof deck can also help with the energy efficiency of the building's design.

Builtup Layers That Create Watershed

The built-up layers of materials are an important step for the installation of a layered roofing system. These layers of the roof may include rigid sheathing and foam materials. The built-up layers will also need to provide a watershed for the roof, which needs to drain to specially designed commercial roof drainage systems. The watershed of the roof allows rainwater to drain off the roof of your business and prevents damage.

Moisture Barrier Layers to Protect Roof Decks

The moisture barriers of the layered roofing system are another important feature that you need to account for. The moisture barrier of a layered roofing system serves several purposes. First, it protects metal and plywood decking materials from sweating, which is the condensation that can form beneath roofing finishes like metal and membranes. It also provides a textured surface for easier bonding of adhesives and spray coatings.

The Final Layer of Impermeable Roofing Materials

The final layer of commercial roofing is impermeable later. Options like asphalt and bitumen roofing materials will give your business a more conventional finish. These materials can be seamless spray coatings, membranes, and more traditional asphalt roofing. The membranes and spray coatings will give your business a modern energy-efficient finish. Asphalt-like materials will be heavier, and spray coatings and roofing membranes are lighter materials. If you have a newer commercial building with a lightweight design, membranes and spray coatings are the best choices to finish these surfaces.

The layered roofing systems give you options for improvements to the insulation and watershed of your roof. Contact a commercial roofing contractor to discuss these options for your business's new roof.