Roof Tech Conduit Solar PV Mounting Systems Installation Guide

May/2023
INSTALLATION MANUAL
Conduit Mount

Conduit Solar PV Mounting Systems

Introduction

Please review this manual thoroughly before installing your Roof-Tech system.
Roof Tech products shall be installed on a roof with wood decking of plywood or OSB.
Maintaining the waterproof integrity of the roof. Installation on plank or skip sheathing roof deck is not recommended.

Attention
To maintain the flashing performance, avoid installation when the ambient temperature is below 22F or above 176F.
RT Butyl must be installed on a dry surface.

Attention
Use caution not to catch your foot on the conduit.
Conduit and/or screw may come off from the Mount.

Tools & Supplies Required for Assembly

• Hex socket 5/16″or 8㎜ (for the Screw)
• Drill Bit 1/4″ or φ 6.5㎜ （ for the Composite Slate)
• Measuring tape
• Chalk line
• Center punch
• Hammer
• Caulking gun

Moisture Content
RT Butyl Flexible Flashing is to be installed on dry mounting surfaces. Determining how wet is too wet:
First, remove the protective paper from an RT product exposing the clean RT Butyl.
Second, press the base, RT Butyl side down against the surface.
Third, pick up the base. If the base adheres to the roof, the roof is suitably dry for installation.
For Metal, EPDM and TPO remove water from the installation area with a cloth squeegee before placing and affixing the base.
A heat gun, Sodium Chloride, or alcohol is suitable to remove ice from the roof surface.

Installation Safety

The installation process requires working on sloped and elevated building surfaces, in outdoor weather conditions, using tools and heavy components designed for the generation of electricity.

• Use properly anchored fall protection equipment.
• Use caution to prevent objects from falling or dropping off the roof area.
• Cordon off ground areas directly beneath the roof work area when possible.
• Always use personal protection equipment such as safety glasses, gloves,etc.
• Do not perform installation in excessively wet, windy, or inclement weather conditions.
• When working in hot weather, work crews should take care to prevent symptoms of over-heating or dehydration.
• Use proper lifting and carrying techniques when handling heavy components at the job site.
• Do not anchor fall protection equipment to roof mounts, or any other inappropriate roof structure.
• Follow best practices when working around high-voltage electrical equipment.

Materials

1. Conduit Mount Set
   | Part Name| QTY/BOX
   ---|---|---
   ②| Conduit Mount| 20
   ①| Screw 5.0×60| 20

2. Screw Optional）
   | Part Name| QTY/BOX
   ---|---|---
   ①| Screw 5.0×90| 1,000

3. Butyl Optional）
   | Part Name| QTY/BOX
   ---|---|---
   ①| RT-Butyl| 10

※ Conduit clamps, conduits, and roof sealants not included.
※ Suitable for 1″, 3/4″, or 1/2″ conduit clamps.

Mount Installation

Installation on a Asphalt Shingles
Attention
Install the Conduit Mount on a flat surface of the Asphalt Shingles.
Please do not install over a slit or uneven roof surfaces.
Minimum clearance between mounting screws and the edge of the Asphalt Shingles shall be 3/8” (10 mm).

Attention
For installation across steps, use butyl or sealant to align the height of the roofing material.
For installation within 50 mm of a gap or crevice, the gap to be filled with butyl or sealant
【 Roof sealant recommended products】

• Henry : 208R, 209, 925 (Black)
• Geocel:S2, S4 (Black)
• Sashco : Through the Roof
• Boss : 125 (Black)
• Top Industrial: Rain Buster 850, 900
• Chem Link: M1
• NPC Solar Seal 900
• GE All Purpose 100% Silicone

Installation on a Metal Roofing

Attention
Can be installed on metal roofs with decks.
Seam height of metal roofing shall be less than 23mm.The Conduit Mount must be mounted on the flat surface. Please make sure the location is not on slope surface of metal ribs.Screw must be fixed to the flat surface.Also, its center must clear 5mm from the edges （ Please refer to the 3 pictures on the right.） 20mm from the mounting edge of the conduit mount clears the 5mm from the center of the screw to the edge of the metal rib profile.
When crossing over ribs,the height of the ribs is 5㎜ or less.

1. Use center punch to make a pilot hole at the mounting location of the Conduit Mount.
   

2. If the Conduit Mount overlaps the roof ribs, modify and use the height-adjusting butyl to fill the recess.
   Butyl should be cut and used.

Installation on a Composite Slate
Attention
Minimum clearance between mounting screws and the edge of the Composite Slate shall be 2” (50 mm). Attention
If the Conduit Mount is installed within 2” (50 mm) of a gap or crevice in the roof surface, the gap has to be filled with sealant or butyl as shown in an image below.

【 Roof sealant recommended products】

• Henry : 208R, 209, 925 (Black)
• Geocel:S2, S4 (Black)
• Sashco : Through the Roof
• Boss : 125 (Black)
• Top Industrial: Rain Buster 850, 900
• Chem Link: M1
• NPC Solar Seal 900
• GE All Purpose 100% Silicone

1. Drill a φ 1/4″(φ 6.5 mm) pilot hole at the mounting location. Note： It is easier to manage drill depth by using any stopper on the drill bit. Please make sure to use stopper to drill through the layer of roofing material only. Do not to drill all the way to the wood deck or underlayment.
   Attention
   You must avoid drilling into the wood underneath it.

2. Fill the cavity with a sealant.
   The sealant must be flush with the slate surface.

【 Roof sealant recommended products】

• Henry : 208R, 209, 925 (Black)
• Geocel:S2, S4 (Black)
• Sashco : Through the Roof
• Boss : 125 (Black)
• Top Industrial: Rain Buster 850, 900
• Chem Link: M1
• NPC Solar Seal 900
• GE All Purpose 100% Silicone

Installation of on Other Roofing Materials
The Conduit Mount can also be installed on single ply membranes (SBS, EPDM, TPO) with wooden decking.
Installation of Conduit Mount

1. For a conduit strap,
   ① Peel off the protective papers from the Conduit Mount. ② Attach a conduit to the conduit strap, and fasten the strap to the Conduit Mount with Screw 5.0× 60.
   ※ There is a mounting hole underneath the center of the top butyl.
   Attention
   Note: Proper torque values for the Screw 5.0× 60 will vary depending on the rafter’s and/or the deck’s characteristics; hardness, age, and moisture of the wood.
   Tighten until the washer stops rotating freely.Avoid using an impact driver as it can over torque the screws or even snap off the head.
   Attention
   If the hole cannot be located, then push the center of the top butyl with a finger to locate the hole.
   Make sure the Conduit Mount properly aligns with the conduit. For a conduit hanger,
   ① Remove the bolt from the conduit hanger.② Peel off the protective papers from the Conduit Mount.③ Fasten the conduit hanger and Conduit Mount with Screw 5.0× 60.
   Refer to page 15 regarding the torque of the screw. Attention
   If the hole cannot be located, then push the center of the top butyl with a finger to locate the hole.④ Place a conduit in the conduit hanger, and fasten with a bolt.

2. Butyl or Sealant application
   If the Conduit Mount overlaped metal roof ribs, apply butyl or roof sealant on the ridge side of the Conduit Mount to form a roof cricket.
   Optional is the sealant to each side of Conduit Mount.
   Do not apply butyl or sealant to the bottom of the Conduit Mount.

3. Other
   ♦ One Asphalt Shingle is 3mm. It can be used up to total of 9mm.♦ If the total Asphalt Shingle thickness exceeds 9mm, then use Screw 5.0× 90.♦ If the Conduit Mount is attached to a rafter, then use Screw 5.0× 90

10620 Treena St, Suite 230
San Diego, California 92131
TEL 858-935-6064
www.roof-tech.us

References

• Solar PV mounting systems for every roof! – Roof Tech Inc.

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>