Master Flash offers a range of flashing solutions for pipe penetrations in roofing systems. These include Standard, Residential, Multi, and Retrofit models, each designed with specific installation procedures and features. Proper installation involves selecting the correct size, applying lubricant, conforming the flashing to the roof profile, and utilizing sealant and fasteners to ensure a watertight seal. The documentation details procedures for each model, emphasizing the importance of correct sizing and secure fastening.
Master Flash Standard Installation
The Master Flash Standard model requires careful selection of a size appropriate for the pipe being fitted. The documentation specifies choosing a flashing with a pipe range that extends both below and beyond the fitting’s diameter. If necessary, the flashing can be trimmed using lines indicated on the product itself, reducing the opening to 20-30% smaller than the pipe diameter.
Installation proceeds as follows:
- Select the appropriate Master Flash Standard based on pipe diameter.
- Trim the opening if required, using the lines provided as guides.
- Slide the flashing down the pipe, utilizing a non-petroleum-based lubricant to facilitate movement.
- Press the flashing down, carefully bending it to match the roof’s profile and accommodate any irregularities. A blunt tool can assist in forming the flashing around tight angles.
- Apply sealant between the base of the flashing and the roof surface.
- Secure the installation with fasteners, ensuring spacing does not exceed 1.5 inches (38 mm).
Master Flash Residential Installation
The Master Flash Residential model shares similarities with the Standard model but includes a specific feature for adjusting the opening size. The documentation instructs users to select a flashing with a pipe range that accommodates the fitting. If adjustment is needed, pliers are used to pull a tab on the flashing, creating an opening 20-30% smaller than the pipe diameter.
The installation steps are:
- Select the appropriate Master Flash Residential based on pipe diameter.
- Adjust the opening size using pliers and the provided tabs, if necessary.
- Slide the flashing down the pipe, applying a non-petroleum-based lubricant.
- Install tiles at the sides of the Master Flash Residential.
- Press the flashing down, bending it to conform to the roof’s profile.
- Apply sealant between the base of the flashing and the roof.
- Secure with fasteners, maintaining a maximum spacing of 1.5 inches (38 mm).
Master Flash Multi Installation
The Master Flash Multi model offers additional versatility, including a retrofit capability. Selecting the correct size involves choosing a flashing with a pipe range that extends beyond the fitting. For retrofit applications, the documentation instructs users to cut down the side of the clearly marked flange.
The installation process is as follows:
- Select the appropriate Master Flash Multi-Flash based on pipe diameter.
- If using as a retrofit, cut down the side of the flange at the marked location.
- Slide the flashing down the pipe, using a non-petroleum-based lubricant. For retrofit applications, wrap the product around the pipe.
- Press the flashing down, bending it to conform to the roof profile.
- Apply sealant between the base of the flashing and the roof, as well as at the top of the flange.
- Place the stainless steel gripper on the flange to close and secure the flashing.
- Tighten the stainless steel gripper.
- Secure with fasteners, maintaining a maximum spacing of 1.5 inches (38 mm).
- Additional sealant can be applied between the flashing and the pipe as needed.
Master Flash Retrofit Installation
The Retrofit Master Flash is specifically designed for existing pipe penetrations. The documentation highlights the importance of cutting down the side of the clearly marked flange when utilizing this model for retrofit applications.
The installation steps are:
- If using this product as a Retrofit, cut down the side in the clearly-marked flange.
- Slide the Master Flash Multi-Flash down the pipe, using a non-petroleum-based lubricant. For Retrofit applications, wrap the product around the pipe.
- Press Master Flash Multi-Flash down, bending it to conform to roof profile or irregularities. A blunt tool will help to form flashing to tight roof angles.
- Apply sealant between the base of the flashing and the roof, as well as at the top of the flange.
- Place the stainless steel gripper on the flange to close and secure the Master Flash Multi-Flash.
- Tighten the stainless steel gripper.
- Secure with fasteners, maintaining a maximum spacing of 1.5 inches (38 mm).
Sealant and Lubricant Considerations
Throughout the installation procedures for all Master Flash models, the use of sealant is consistently emphasized. Sealant is to be applied between the base of the flashing and the roof surface, and in some cases, at the top of the flange (specifically for the Multi model). The documentation does not specify a particular type of sealant, but the inclusion of “Hi Temp Silicone Red” in product listings suggests compatibility with high-temperature applications.
The documentation consistently recommends using a non-petroleum-based lubricant to ease the sliding of the flashing onto the pipe. This prevents damage to the flashing and facilitates proper positioning.
Product Range and Specifications
The provided documentation lists several Master Flash products with corresponding sizes:
- Master Flash #3 Hi Temp Silicone Red (1/4” – 4”)
- Master Flash #5 Hi Temp Silicone Red (4 1/4” – 7 3/4”)
- Master Flash #8 Hi Temp Silicone Red (7” – 13”)
- Master Flash #9 Hi Temp Silicone Red (9” – 19”)
- Retro Fit Master Flash (3/4” – 2 3/4”)
- Retro Fit Master Flash (2” – 7 1/4”)
- Retro Fit Master Flash (3 1/4” – 10”)
These specifications indicate the range of pipe diameters each flashing is designed to accommodate. The “Hi Temp” designation suggests these models are suitable for use with heated pipes or in environments with high ambient temperatures.
Conclusion
Master Flash provides a variety of flashing solutions for roof pipe penetrations, each with a specific installation process. Proper selection of the appropriate model and size, coupled with careful adherence to the provided instructions regarding lubrication, sealant application, and fastener spacing, is crucial for ensuring a watertight and durable seal. The documentation emphasizes the importance of conforming the flashing to the roof profile and utilizing tools to assist in bending and securing the product. The availability of retrofit options provides solutions for existing installations, while the Hi Temp models cater to applications requiring heat resistance.