Understanding Roofing Waterproof Membrane Performance and Code Compliance

Understanding roof performance is crucial for a waterproof membrane to work effectively. A waterproof membrane's performance is affected by its thickness, which can range from 4 to 60 mils (0.1 to 1.5 mm), depending on the type and application.

The International Building Code (IBC) requires a minimum of 40 mils (1 mm) for most roofing applications. This ensures a certain level of durability and resistance to water penetration.

Water can penetrate a roof through cracks and gaps, which can be as small as 1/32 inch (0.8 mm). This is why regular inspections and maintenance are essential to prevent water damage.

The ROOF DETAIL MEMBRANE is a top-notch waterproofing solution. It's based on the GRACE ICE & WATER SHIELD roofing underlayment technology, which is a proven track record of success.

The membrane is designed for easy installation, with RIPCORD split-release on demand feature placed in the center and near the edge (18 in. width) for smooth transitions and future tie-ins.

The membrane features square edge cuts and measure markings on the face to simplify layout and installation. This makes it a breeze to get the job done.

The ROOF DETAIL MEMBRANE is made of two waterproofing materials: an aggressive rubberized asphalt adhesive backed by a layer of high-density, cross-laminated polyethylene. This provides a strong and reliable bond.

The membrane is available in 9 in. and 18 in. widths, making it suitable for various roof sizes and shapes.

Here are some key benefits of the ROOF DETAIL MEMBRANE:

To ensure a successful roofing waterproof membrane installation, preparation is key. Remove dust, dirt, loose nails, and old roofing materials from the surface.

A clean and dry structural substrate is essential for a watertight seal. Suitable substrates include plywood, wood composition, metal, concrete, or gypsum sheathing.

Protrusions from the substrate area must be removed, and damaged or unsupported areas, or voids, should be repaired before installing the membrane. This will prevent any potential leaks or water damage.

Clear the surface of any debris or particles that could interfere with the membrane, as even small particles can ruin several square feet of waterproofing.

Repair any cracks, cavities, or building defects on the roof surface to ensure a smooth and even installation.

Safety and compliance are crucial when working with roofing waterproof membranes. Always wear fall protection when working on a roof deck.

Slippery surfaces are a hazard, so be aware that ROOF DETAIL MEMBRANE can be slippery when wet or covered by frost. Release liners are also slippery and should be removed from the work area immediately after membrane application.

To ensure safe installation, follow these guidelines:

Certain materials are not compatible with ROOF DETAIL MEMBRANE, including EPDM or TPO, polysulfides, uncured neoprene, wood substrates with high concentrations of resin (pitch), or flexible PVC.

Safety and compliance are top priorities in any construction project. Always wear fall protection when working on a roof deck, as it's consistent with good roofing practice.

Slippery surfaces can be a hazard, especially when wet or covered in frost. Release liners are particularly slippery, so remove them from the work area immediately after membrane application.

It's essential to cover the membrane within 30 days to prevent damage from prolonged exposure to sunlight. Folding the membrane over the roof edge can also cause problems, unless the edge is protected by a drip edge, gutter, or other flashing material.

When lapping over granular surfaces, be sure to allow for a 6-inch overlap and apply a bead of roofing mastic along the edge of the membrane. This will help ensure a watertight seal.

Repairing holes, fishmouths, tears, and damage requires a round patch of membrane, extending past the damaged area 6 inches in all directions. This will provide a secure seal and prevent leaks.

Fasteners should not be installed through the membrane over unsupported areas of the structural deck, such as over joints between adjacent panels.

Code compliance is crucial for ensuring the safety and integrity of building structures.

The ROOF DETAIL MEMBRANE meets the following standards:

These standards are not just recommendations, but requirements for ensuring the safety and integrity of building structures.

The performance properties of a roofing waterproof membrane are crucial to its effectiveness. One key property is its color, which is a gray-black hue.

The membrane's thickness is also important, measuring 40 mil (1.02 mm) in this case. This is determined using the ASTM D3767 method A.

Tensile strength is another vital property, with this membrane boasting 250 psi (1720 kN/m) of tensile strength. This is measured using the ASTM D412 (Die C modified) method.

Elongation is also a notable property, with this membrane stretching to 250% without breaking. This is also measured using the ASTM D412 (Die C modified) method.

Low temperature flexibility is another key property, and this membrane is unaffected by temperatures as low as -20°F (-29°C). This is tested using the ASTM D1970 method.

Adhesion to plywood is also crucial, and this membrane adheres strongly to plywood with a force of 3.0 lbs/in. width (525 N/m). This is tested using the ASTM D903 method.

Permeance is another important property, and this membrane has a maximum permeance of 0.05 Perms (2.9 ng/ms Pa). This is tested using the ASTM E96 method.

Material weight installed is also a consideration, and this membrane has a maximum installed weight of 0.3 lb/ft (1.3 kg/m2). This is tested using the ASTM D461 method.

PVC Waterproof membrane and other waterproofing options are available, but PVC is a top choice for many roofs.

The main competitor of PVC single-ply membrane, EPDM, costs a little less and lasts about the same, but it's not energy-efficient and takes more time to install.

TPO is another US-made competitor, but its performance properties, including durability and longevity, have not been thoroughly studied, and the quality of the material varies greatly depending on the brand and manufacturer.

Liquid-applied membranes are an innovative alternative, but they require specialized contractors, are expensive, and susceptible to weather conditions during installation.

PVC membranes can be installed even on damp substrates and under green roof constructions.

PVC waterproofing membranes are an excellent choice for most residential and commercial roofs, but they're not the only option. EPDM membranes can also be a good choice, but they're not as energy-efficient as PVC, which can save you money on your energy bills.

EPDM membranes can handle ponding roof options, but they require more time to install, increasing the cost of the work. On the other hand, TPO membranes are a relatively innovative single-ply material that can be energy efficient, but their performance properties have not been thoroughly studied.

Liquid-applied membranes are another alternative solution for waterproofing, but they require specialized contractors and are expensive. They're an ideal solution for refurbishment or recover projects, as they eliminate the need to tear off the existing leaking/failing roofing and waterproofing systems, saving on costs associated with labor and disposal.

Direct bonding to the substrate prevents lateral water migration in the event of a puncture or storm damage, making fully adhered systems a reliable option.

Sure-Flex is a line of advanced-formula, heat-weldable PVC membranes designed for long-term weatherability and performance.

One of the key benefits of Sure-Flex is its ability to resist chemicals, pollutants, and abrasions, making it a high-performance membrane.

The Sure-Flex line includes several variations, each with its own unique features. For example, the Sure-Flex FleeceBACK membrane offers superior reflectivity and durability, while the Sure-Flex FRS membrane is designed to enhance weatherability, flexibility, and toughness with a puncture-resistant fleece backing.

Here are some of the key features of the Sure-Flex line:

These variations offer a range of benefits, from improved durability to enhanced weatherability, making them a great option for many roofing projects.