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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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    • CommentAuthorSimonH
    • CommentTimeFeb 25th 2009
     
    I've started working in a big tower in Brum and my office is overheating in February!

    There are radiators with TRVs under all the windows but they are mostly off. No air con ducts. The building looks to have been built in the 60's and has obvious thermal bridges at each floor. Walls are only about 250mm so no room for fancy insulation. Windows are single glazed with poorly fitting secondary glazing - i.e. some have come of their runners, some don't close properly. They run 2/3 the height of the room and 80% of wall area. So should be huge heat loss.

    Surely this heat can't just be the PC's/monitors and body heat? It's worse in the mornings, until we come in and open the windows :-(

    My hunch is that as we're on the 6th floor it's simply heat rising from lower floors. Is this a common problem? If so I dread to think what it will be like May-August :-(

    More importantly - how do you solve this assuming your employer isn't planning to move? Get the floor insulated and pass the problem down to the storey below?

    Simon.
    • CommentAuthorTuna
    • CommentTimeFeb 25th 2009
     
    I'd put money on heat rising from the floors below.
    • CommentAuthorStuartB
    • CommentTimeFeb 25th 2009
     
    Agreed. We are on the 4th floor and all 3 below us are currently empty and it is cold in the mornings.
    •  
      CommentAuthordjh
    • CommentTimeFeb 25th 2009
     
    Posted By: SimonHMore importantly - how do you solve this assuming your employer isn't planning to move?

    Turn the computers off overnight? Leave some windows open a crack?

    Are you on the top floor?
    • CommentAuthorunguided1
    • CommentTimeFeb 26th 2009
     
    I agree that heat will rise through the building but, I would asume that each floor is seperatly zonedalowing more control throughout the building so it could be that the zone valve or room stat for your floor has malfunctioned, time to call in the maintenance crew for your building
    regards
    Mike
    •  
      CommentAuthorSteamyTea
    • CommentTimeMar 12th 2009
     
    Hello
    It could be solar gain from the morning sunlight. I work in a 60's building and one side (south facing) gets extremely hot while the other (north facing) stays cold. Even in summer the north side sometimes needs heating.
    If your building has an east or south east facing side with no obstructions then it is quite possible that along with rising heat there is an element of solar gain. This will be made worse by the low U-Value of the construction allowing the heat to transmit faster into the working area.

    Nick
  1.  
    The indoor temperature is significantly influenced by the thermal behaviour of a building. In buildings, which because of their construction method lack the required thermal storage mass, inner loads and sun radiation lead to great fluctuations in temperature, losses of comfort and increased need for air conditioning inside buildings.
    Nowadays, construction of offices and housing is increasingly carried out using modern lightweight building methods of wood and steel designs with highly insulating wall construction materials and large glass surfaces. The high degree of prefabrication and the avoidance of long drying times lead to quick progress in construction and thus an especially high level of efficiency. In striving to optimise the mass and dematerialisation of the building components, in addition to various practical and economic advantages, one problem, namely a loss of thermal mass and the negative impacts on the indoor climate arises. See the following: weblinkhttp://www.micronal.de/portal/basf/ien/dt.jsp?setCursor=1_290798
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