Flat Roof Duct Addition

It appears that the house originally had only one unit with the second unit added later.

Flat roof duct addition.

There are design differences for each type. We purchased an eichler style house few years ago and the contractor moved the hvac duct work to the roof. The lower half of the flange sits on top of the shingles. Step 1 plan.

Apply a bead of asphalt roof cement on the bottom of the vent. Flat seam roof expansion guidance over 30 feet use batten seam design to allow for expansion copings and fascia also require joints that accommodate expansion between sections figure 1 5 allowances for gutter expansion roof edging and perimeter. The house has no attic so they create a drop ceiling for the duct work. The issue is that when they installed the second unit they installed the ductwork in the ceiling of the kitchen.

One option is to run spiral duct exposed. Once the flashing is in place the roof is ready to face the elements. Nail the lower corners with roofing nails and tar the heads. 1 reply august 23 2014 10 40am sarah.

The flat roof addition design can go up against different style that when nitty gritty right can ooze a cutting edge feel. First off the flat roof addition design is an extremely basic direct and utilitarian design every single current trademark. Slide the vent under the shingles so they cover the top half of the vent flange. Count the cost of a roof top which will need a curb and crane and play with the options.

Looking at an older house in las vegas built in the 70 s. May 27 2012. This will seal the parts of the roof together and reduce the risk of leaking. Tying in a flat roof addition makes it possible to extend and add to your existing property without affecting the look of it.

In addition there s a third type the warm flat roof with airflow that s essentially a hybrid version of the warm flat roof and the cold flat roof. A roof design gives the chance to extra floor space in the roof volume similar to a space or upper room space. Then closed cell polyurethane roof waterproofing materials embed and encapsulate the ductwork. The off the rack alternative to custom flashing is a galvanized drip edge specially made for flat roofs.

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. Called a gravel stop it works on any kind of flat roof and comes in many colors. Last option i can think of is add a roof to the house and create an attic if funds are available for such a project. The house has a flat roof and 2 rooftop ac units.

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