Metal Tile Roof Installation Proposal

Installation Outline

  • Determine number of mounting brackets needed
  • Configure placement of brackets at the bottom of roof wave and adjust to hit truss if possible
  • If truss is missed drill pilot hole with telltale and cross block that hole from behind
  • Drill hole into metal roof to allow mounting of FlashJack base to roof sheeting with lag bolt and caulk
  • Screw selected post into base and caulk entire post so as to create an overflow onto the roof.
  • Add caulk as needed to create a caulk dam from the base post shaft to the sides of the hole and onto the metal roof
  • Once caulk has skinned install the fabricated flashing curb with caulk to the roof around the installed post
  • Fill the curb with 1-Part polyether pourable sealant and continue installation

ProSolar FlashJack CFJE-600-1 6″ Commercial Standoff

https://cdn10.bigcommerce.com/s-3yc5xwvk/products/2356/images/3124/ProSolar_Commercial_FastJack_E-Series_Standoff__50128.1531540846.1280.1280.jpg?c=2

Link to FlashJack supplier
Specs – Available in 4-1/2″, 6″, 8″, 10″, 12″ tall sizes. Contractor price starting below $6.60 each. Single lag bolt design – Patent No. 6,360,491. Independently laboratory tested to 4,050 lbs ultimate pull out*, 1,640 lbs ultimate side axial loads (engineered with 3/8″ x 5″ lag bolt). Lightweight and corrosion resistant material. Solid aluminum post (1-1/4″ outer diameter and 2″ outer diameter base) compatible with standard 1″ UPC / NES approved flashing.

FlashJack Installation

Customers Roof

Once a baseline height is determined by the distance from the top of the wave of the metal tiles to the roof sheeting below we can choose the length of the FlashJack’s needed for the entire project.

The hole needed to install the FlashJack through the metal roof only has to be big enough to fit the FlashJack base component that is lag bolted into the trusses. If the trusses do not align with the placement of the FlashJacks we could block those areas from inside the attic as there is ample space to work.

This video shows how the two parts are installed and can be adapted to the customers roof

1-PART POURABLE PENETRATION SEALANT

E-Curb penetration seals replace old-style metal pitch pans with versatile, precast components and 1-Part polyether pourable sealants. CHEM LINK’s E-Curb System can usually be installed in under 15 minutes and never requires flashing or mechanical attachment – a vast improvement over traditional pitch pans!

E-Curbs are highly versatile for sealing penetrations around solar panel mounts, HVAC, Electrical, and any type of structural supports.

Product Link

Because this roof does not have a flat surface to be able to use the E-Curb precast flashing curbs we would have to fabricate a flashing curb to match the curve of the existing roof.  The only consistent placement for the mounting brackets would have to be at the bottom of each wave which means a pilot hole would have to be drilled through the roof and leave a telltale so that we can determine if we have hit a truss or we would need to block that hole.

Video below shows how the product works as an example and how a fabricated could be made to match this roof.

Along with the report from the structural engineer the owner hired to validate the integrity of the roof this configuration should satisfy code requirements as the FlashJack is directly attached to the roof trusses and does not rely on the metal roofing for any support. The 1-Part polyether pourable sealant system should satisfy any water intrusion issues now and in the future as the sealant is actually creating a solid plug rather than just caulk.