Flat Roof Hvac Duct

Forum home ca modern forums home maintenance hotline how to conceal hvac duct work on a flat roof.

Flat roof hvac duct.

Some rooms have no interior wall material on the block like drywall. In addition its flexibility allows for easier installation in hard to reach areas. We purchased an eichler style house few years ago and the contractor moved the hvac duct work to the roof. The house construction is concrete block with probably no insulation.

1 reply august 23 2014 10 40am sarah. The absolute best way to run the ductwork above the roof is to use r8 insulation on the ductwork internal and build a doghouse outside the ductwork with minimum r30 insulation on sides and top of duct. Rps duct mounting pedestals are the ultimate solution to mounting duct runs across a flat or pitched roof. Rather than elevating ducts above the roof dura foam systems integrate low profile rectangular ducts that are installed directly over flat roof s deck boards.

This sheet of 30 gauge galvanized steel has a maximum temperature rating of 390. Hvac duct fittings. 4 7 out of 5 stars 29. The master flow 36 in.

More product details close. Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes. Hvac system for flat roof no duct house. Imperial 6 in x 300.

Galvanized steel flat sheet can be cut to size for a tough hvac job that requires a customized fitting. For pricing and availability. Pool1 free shipping on orders over 99. For pricing and availability.

How to conceal hvac duct work on a flat roof. Only 12 left in stock order soon. May 27 2012. Each rps duct mounting pedestal incorporates an rps equipment rail to assure proper support and a superior flashing base for securing the roofing termination.

This is my exact climate we do have to run ducts on the roof all the time. On top of the equipment rail the duct slide assembly allows for duct movement due to expansion and contraction while assuring that the ductwork can be secured to the support. The original hydronic radiant floor heat is still in use and we love the comfort it provides. Booster fans and accessories and whole house humidifiers can help make your existing ductwork system more economical.

Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct. It can be installed with sheet metal screws. Duct temp gain when inside doghouse with r30 is less than 5 at 50. My 1949 flat roof house is on a slab no basement no attic.