1. Product Overview
The Hedday #8 High-Temperature Silicone Chimney Boot is designed to provide a watertight seal for pipe penetrations through metal roofs. It is suitable for various applications including chimneys, wood stoves, HVAC vents, and plumbing stacks. Constructed from durable, high-temperature silicone EPDM rubber, this boot is engineered to withstand extreme weather conditions and temperature fluctuations.
- Pipe Compatibility: Fits pipes with an Outer Diameter (OD) ranging from 7 to 13 inches.
- Material: High-temperature silicone EPDM rubber.
- Temperature Resistance: Withstands temperatures from -160°F to 400°F (-106°C to 204°C).
- Weather Resistance: Designed to resist drying, cracking, and leaks due to rain, snow, and UV exposure.
- Flexible Base: Adapts to various metal roof profiles including ribbed, corrugated, and standing seam.
- Included Hardware: Comes with self-tapping roofing screws and a matching hex bit for installation.
2. Setup and Installation
2.1 Pre-Installation Checks
- Measure Pipe OD: Accurately measure the outer diameter of the pipe you intend to flash. Include any collars, flanges, or enlarged sections.
- Select Correct Size: Ensure the #8 boot is appropriate for your pipe's OD (7-13 inches). Refer to the sizing chart below.
- Roof Pitch Consideration: For roof pitches greater than 10/12, it is recommended to select the next larger size pipe boot for the same pipe diameter to ensure proper sealing.
- Safety: Always wear appropriate safety gear, including gloves and eye protection, when working on a roof.
2.2 Sizing Chart
The following chart details the pipe OD ranges for each trim ring on the boot:
Image: Sizing chart for Hedday #8 chimney boot. This chart illustrates the various pipe outer diameter (OD) ranges, in both inches and millimeters, corresponding to the trim rings on the silicone boot. It also shows the included screws and hex bit.
| Trim Ring | Pipe OD Range (Inches) | Pipe OD Range (Millimeters) |
|---|---|---|
| 1 | 6 3/4" - 7 1/4" | 171 - 184 mm |
| 2 | 7 1/4" - 8 1/2" | 184 - 216 mm |
| 3 | 8 1/2" - 9 1/2" | 216 - 241 mm |
| 4 | 9 1/2" - 10 1/2" | 241 - 267 mm |
| 5 | 10 1/2" - 11 1/2" | 267 - 292 mm |
| 6 | 11 1/2" - 12 1/2" | 292 - 317 mm |
| 7 | 12 1/2" - 13" | 317 - 330 mm |
2.3 Installation Steps
Follow these steps for a secure and leak-proof installation:
Image: Easy installation guide. This image displays a four-step process: 1. Measure & Cut the boot along the marked rings. 2. Slide the boot over the pipe and position the base. 3. Seal the base with roof sealant. 4. Fasten the boot to the roof with screws.
- Measure and Cut: Using a utility knife or strong scissors, carefully cut the silicone boot along the marked ring that is approximately 20% smaller than the pipe's outer diameter. This ensures a snug, tight fit.
- Slide Over Pipe: Slide the trimmed boot over the pipe. The flexible silicone will stretch to accommodate the pipe. Position the boot so its base sits flat on the roof surface around the pipe.
- Seal the Base: Apply a high-quality, weather-resistant roof sealant (not included) along the outer edge of the boot's aluminum base. Press the base firmly onto the roof surface to create a strong bond and prevent water intrusion.
- Fasten with Screws: Secure the boot to the metal roof using the provided self-tapping roofing screws. Drive the screws through the pre-drilled holes in the aluminum base into the roof. Use the included hex bit with a drill for efficient fastening.
2.4 Adapting to Roof Profiles
The flexible aluminum base of the Hedday chimney boot is designed to conform to various metal roof profiles. Gently mold the base to match the ribs, corrugations, or standing seams of your roof for an optimal seal.
Image: How to choose the correct boot. This diagram illustrates the difference between round and square base boots and advises choosing the next size up for steeper roof pitches (greater than 10/12) or deep corrugated panels (over 1.5" corrugation).
3. Usage and Environmental Considerations
The Hedday #8 Chimney Boot is engineered for long-term performance in diverse environmental conditions.
- Temperature Range: The silicone material maintains its integrity and flexibility across a wide temperature spectrum, from extreme cold (-160°F / -106°C) to high heat (400°F / 204°C).
- Weather Protection: Provides a reliable barrier against rain, snow, ice, and strong winds, preventing water penetration into the building.
- UV Resistance: The silicone is resistant to degradation from prolonged exposure to ultraviolet (UV) radiation, ensuring durability over time.
- Applications: Ideal for sealing around pipes for wood stoves, chimneys, general roof ventilation, and HVAC systems on metal roofs.
Image: Wide application examples. This image displays the versatility of the chimney boot, showing it installed on a metal roof, with a wood stove pipe, an outdoor vent, and a chimney.
Image: Built for extreme conditions. This image highlights the boot's ability to handle temperatures from -100°F to +500°F, and withstands heat, rain, snow, and harsh weather. It also includes a caution: Not for square or rectangular flues, and avoid direct contact with open flame.
Important Cautions:
- This product is not designed for square or rectangular flues.
- Avoid direct contact with open flame. Ensure the pipe temperature at the boot location does not exceed the maximum rated temperature of 400°F (204°C).
- Do not install closer to the heat source than recommended by local building codes or appliance manufacturers.
4. Maintenance
Regular inspection and minor maintenance can extend the lifespan of your Hedday chimney boot and ensure continued leak-proof performance.
- Periodic Inspection: Annually, or after severe weather events, inspect the silicone boot and its sealant for any signs of wear, cracking, tears, or deterioration. Check the screws for tightness.
- Cleaning: If dirt or debris accumulates on the boot, gently clean it with mild soap and water. Avoid harsh chemicals or abrasive cleaners that could damage the silicone.
- Sealant Refresh: If the original roof sealant shows signs of cracking or peeling, carefully remove the old sealant and reapply a fresh bead of high-quality, weather-resistant roof sealant around the base.
- Damage Repair: Small punctures or tears in the silicone may be repaired with a suitable silicone-based sealant or repair kit. For significant damage, replacement of the boot is recommended.
5. Troubleshooting
If you encounter issues with your chimney boot, consider the following troubleshooting steps:
- Leakage Around Pipe:
- Cause: Boot not cut to the correct size, or not slid down far enough.
- Solution: Ensure the boot was cut approximately 20% smaller than the pipe's OD for a snug fit. If not, a new boot may be required. Verify the boot is fully seated against the pipe.
- Leakage Around Base:
- Cause: Insufficient or deteriorated roof sealant, or base not properly conformed to roof profile.
- Solution: Reapply or refresh roof sealant around the entire perimeter of the boot's base. Ensure the flexible base is molded tightly to the roof's contours. Check that all screws are securely fastened.
- Boot Deterioration (Cracking/Tearing):
- Cause: Extreme heat exposure beyond product limits, physical damage, or prolonged exposure to harsh conditions without maintenance.
- Solution: Inspect the heat source and pipe for excessive temperatures. If the boot is significantly damaged, it must be replaced. Ensure proper clearance from heat sources as per safety guidelines.
6. Specifications
| Feature | Detail |
|---|---|
| Manufacturer | Hedday |
| Model Number | #8 Roof Vent Pipes |
| Size | #8 (Pipe OD 7" to 13") |
| Material | High-Temperature Silicone EPDM Rubber |
| Temperature Range | -160°F to 400°F (-106°C to 204°C) |
| Color | Orange (Square Base) |
| Item Package Quantity | 1 |
| Included Components | #8 High-Temperature Silicone Chimney Boot, Self-tapping Roofing Screws, Hex Bit |
| Batteries Required | No |
| Product Weight | 2.36 lbs (1.07 kg) |
| Product Dimensions (L x W x H) | 16.73 x 16.73 x 4.92 inches (42.49 x 42.49 x 12.5 cm) |
7. Warranty Information
Specific warranty details for the Hedday #8 High-Temperature Silicone Chimney Boot are not provided in this manual. For information regarding product warranty, please refer to the product packaging, the seller's website, or contact Hedday customer support directly.
8. Support
If you have any questions, require assistance with installation, or need further support regarding your Hedday #8 High-Temperature Silicone Chimney Boot, please contact the retailer from whom you purchased the product or visit the official Hedday website for customer service contact information.