TPO Installation

Providing TPO Installation Services to Virginia and North Carolina

TPO Installation

Thermoplastic Polyolefin (TPO) roofing is another popular choice for flat or low-slope roofs, especially on commercial buildings. TPO combines the advantages of PVC and EPDM roofing systems, offering a heat-reflective, energy-efficient roofing solution.

At Roofing Solutions, our in-depth TPO installation guide will provide you with the information you need to make an informed decision when choosing a roofing contractor.

Here’s a step-by-step overview of TPO roof installation:

The Roofing Solutions Guide To TPO Roof Installation

Preparation of the Roof Deck

1. Cleaning: Begin with thoroughly cleaning the roof deck to remove any debris, dust, or existing materials that could impair the bonding process.

2. Inspection: Check for any structural issues or damages in the decking that need repair. It’s crucial that the deck is in good condition to ensure a smooth installation and long-term durability.

Installation of Insulation

1. Choice of Insulation: Depending on the specific requirements, different types of insulation (such as polyisocyanurate, expanded polystyrene, or extruded polystyrene) can be used. This layer provides thermal resistance and a smooth surface for the TPO membrane.

2. Securing Insulation: Fasten the insulation boards to the roof deck using mechanical fasteners or adhesives, ensuring they are flat and tightly abutted to avoid thermal bridging.

Laying the TPO Membrane

1. Roll Out the Membrane: Begin by rolling out the TPO membrane sheets over the insulation. Sheets typically vary in width, but are often around 10 feet wide.

2. Positioning: Carefully position the membrane to ensure minimal seams and allow for adequate overlap between sheets (usually about 6 inches).

Seaming

1. Hot-Air Welding: TPO membranes are joined by hot-air welding, which creates a strong and watertight bond between the sheets. The edges of the TPO sheets are heated with a hot air gun until they melt slightly and can be fused together by applying pressure.

Attaching the Membrane

1. Mechanical Fastening: Use screws and plates spaced according to manufacturer guidelines to secure the membrane to the deck. Fasteners are typically placed at the edge of the membrane sheets.

2. Fully Adhered System: Alternatively, you can use adhesive to bond the membrane directly to the insulation layer. This method provides a smooth, uniform appearance and reduces the potential for uplift under high winds.

Detailing

1. Flashings and Edges: Install flashings around roof penetrations, edges, and other transitional areas. These are also welded with a hot-air gun to ensure compatibility and performance.

2. Termination Bars: Use termination bars at the roof edge to mechanically secure the edges of the membrane.

Final Inspection and Testing

1. Inspection: Carefully inspect all seams, flashings, and transitions to ensure they are properly welded and free of gaps or defects.

2. Testing: Some installations include a water test to check for leaks, especially in critical areas or where complex details are involved.

Expert TPO Installation

Proper installation of a TPO roof requires technical knowledge and precision, often involving trained professionals to ensure the roof’s integrity, performance, and affordability.

The quality of the installation significantly impacts the roof’s lifespan and effectiveness in weather protection and energy efficiency.

To speak with a professional roofing contractor about your TPO installation needs, please give us a call at (434) 432-4602 or fill out the form below. We will reach out to you shortly!

TPO Installation

Providing TPO Installation Services to Virginia and North Carolina