Flat Roof Hvac Duct

How to conceal hvac duct work on a flat roof.

Flat roof hvac duct.

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. It can be installed with sheet metal screws. We purchased an eichler style house few years ago and the contractor moved the hvac duct work to the roof.

1 reply august 23 2014 10 40am sarah. Forum home ca modern forums home maintenance hotline how to conceal hvac duct work on a flat roof. 4 7 out of 5 stars 29. Some rooms have no interior wall material on the block like drywall.

May 27 2012. Hvac system for flat roof no duct house. Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes. Galvanized steel flat sheet can be cut to size for a tough hvac job that requires a customized fitting.

Free shipping on eligible orders. Duct temp gain when inside doghouse with r30 is less than 5 at 50. Then closed cell polyurethane roof waterproofing materials embed and encapsulate the ductwork. 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. The original hydronic radiant floor heat is still in use and we love the comfort it provides. In addition its flexibility allows for easier installation in hard to reach areas. 4inch 10ft long flexible aluminum air ducting heavy duty black 4 layer dryer vent hose dryer duct for hvac ventilation duct fan systems 2 stainless steel clamps include.

Pool1 free shipping on orders over 99. Hvac duct fittings. 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. For pricing and availability.

Imperial 6 in x 300. More product details close. The house construction is concrete block with probably no insulation. Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct.

For pricing and availability. Only 12 left in stock order soon. This sheet of 30 gauge galvanized steel has a maximum temperature rating of 390. My 1949 flat roof house is on a slab no basement no attic.