WebJan 26, 2008 · Humm, got radon. you did not say what part of the country you live in. I suspect you meant "under" the slab vs in the slab. I guess I took it literally. Your going to need to look at PVC "plastic" smooth duct work. Metal + ground = rust. Reply. 01-26-2008, 03:07 PM #3. Catpower. WebAir Duct Restoration for Failing, In-slab Ductwork Your in-slab ductwork is full of rust and maybe even gaps or holes. Ground moisture, mold, foundation debris, and insects are …
PVC Air Ducts for HVAC Systems - InspectAPedia
Two principal approaches to correcting hazards associated with environmental or heating or air conditioning system functional problems traced to air ducts in floor … See more WebUnderground duct systems shall be constructed of approved concrete, clay, metal or plastic. The maximum design temperature for systems utilizing plastic duct and fittings shall be 150°F (66°C). Metal ducts shall be protected from corrosion in an approved manner or shall be completely encased in concrete not less than 2 inches (51 mm) thick. . Nonmetallic … how do i find stuff on the cloud
Are Sub-Slab HVAC Ducts Problematic? 2024-02-20 ACHR News
WebFeb 22, 2024 · Because sub-slab ductwork is under concrete, it can be difficult to assess problems without destroying the slab. Sometimes, that means issues can be present for a while without homeowners or building owners noticing something is wrong. When sub-slab ductwork gets rusty, it can become weakened. WebNov 5, 2013 · Air ducts were never intended to be water tight like sewer lines. The best way to eliminate water from your air duct system is manage your landscaping, make sure the grade around your home slope away from your home, under slab water lines that have a very slow leak can build up water over time, and monitor your flower beds & sprinkler systems. WebFire resistance up to 2 hours for ventilation and smoke extract ducts. Comprehensively tested on both vertical and horizontal ducts through fire rated walls and floors. The … how do i find ssid on router