13+ Cold Vs Warm Flat Roof Construction Pics. A cold flat roof insulation requires more work, taking off old boards and replacing them and the roof surface. I'm often asked what the difference is between a warm roof and cold roof.
A few thoughts on the differences between a warm and cold roof system and what it can mean to your garden room. I'm often asked what the difference is between a warm roof and cold roof. Cold flat roof construction is mare more difficult to get right and i see lots of cold roofs fail.
Warm flat roof warm flat roof construction is beneficial because the void no longer has cold surfaces upon which condensation of warm moist air can take place and therefore ventilation is not required the insulation is placed above the flat roof decking to form either a sandwich or an inverted.
Pitched (sloping) roofs are more straightforward and there are more options to choose from, while flat roofs and dormer roofs are more of a challenge to insulate. In this video i explain three different ways of building a flat roof using the warm roof and cold roof methods i explain the height each roof will be and all the benefits and drawbacks of each method. What was in 1900 a cold, drafty house, was still the ceiling/roof is new construction with 2x10 rafters spaced 12 inches on center. Condensation can be calculated to bs 6229 and bs 5250.