Quantcast
Attic Rain (truss rain) - Help - Beyond.ca - Car Forums
Results 1 to 6 of 6

Thread: Attic Rain (truss rain) - Help

  1. #1
    Join Date
    Nov 2008
    Location
    Calgary
    Posts
    1,178
    Rep Power
    12

    Default Attic Rain (truss rain) - Help

    http://www.cbc.ca/news/canada/calgar...ouse-1.3933782

    My case is very simlar and now I have wet insulation and numerous wet spots on the celing

    I reckon a number of indivudals are dealing with this due to the temp swings, and for those who aren't but are living in a late model house to check...

    I somehow have to get on the roof to check for the vents, and need to find a way to quickly dry this out before it becomes a mold issue...

    any suggestions?

  2. #2
    Join Date
    May 2006
    Location
    S.E. (not the drrty south)
    My Ride
    Blandness
    Posts
    7,043
    Rep Power
    26

    Default

    Asides from the bathroom exhaust likely venting into your attic, you probably don't have adequate attic ventilation to begin with, hence the moisture trap. I've got a powered attic fan that works great for heat removal in summer, and I know there's an optional humidistat for it instead of thermostat.

  3. #3
    Join Date
    Nov 2008
    Location
    Calgary
    Posts
    1,178
    Rep Power
    12

    Default

    for now I've put in a big floor fan in and am going to run it for a while

  4. #4
    Join Date
    Oct 2003
    Location
    Calgary
    My Ride
    Treg/B7
    Posts
    198
    Rep Power
    0

    Default

    I think many homes have this problem in Calgary and most people never look up there to notice.

    I have the same problem just not enough to actually stain my ceiling. Been in the house 6 years and still no sign of mold. I think the high heat and dryness in summer is enough here to help us completely dry out attics.

    Couple options are, add more insulation, add a fan, make sure soffit areas are clear for air circ, and as said make sure your bathroom vents are connected properly. I will be adding a fan next spring. There are a couple solar power options in the $300 range that get good reviews.

  5. #5
    Join Date
    Sep 2012
    Location
    Calgary, AB
    Posts
    553
    Rep Power
    10

    Default

    You have to seal every hole in your attic. The biggest one by far is your attic hatch. Spray foam behind the trim. Make sure the hatch box is VB'ed properly.

    Go into your attic, spray foam the holes. The main culprits will be electrical line runs. Hopefully your builder was merciful and only made one or two holes for them. Seal around the plumbing vent stack.

    Also go into your basement and plug up any holes in the floor where HVAC, etc intrude. Use batt insulation.

  6. #6
    Join Date
    Sep 2005
    Location
    Calgary
    Posts
    1,300
    Rep Power
    16

    Default

    I had this happen in my old house. The builder came and blew in more insulation and I never had the problem again.

Similar Threads

  1. Airleak and cold in attic

    By Gorilla in forum Home and Garden
    Replies: 1
    Latest Threads: 10-27-2010, 07:24 AM
  2. rain! rain! WTF!

    By jadeboy in forum General
    Replies: 58
    Latest Threads: 09-08-2010, 02:02 PM
  3. attic online shop 40% off

    By aypi in forum General
    Replies: 0
    Latest Threads: 09-25-2009, 10:54 PM
  4. Rain rain and more rain

    By Kloubek in forum General
    Replies: 41
    Latest Threads: 06-14-2008, 01:03 AM
  5. Rain Rain Go Away!

    By Kirbs17 in forum General
    Replies: 16
    Latest Threads: 08-23-2005, 11:57 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •