david spaulding
10/19/2014
I have searched extensively on what i think may be a problem. History: I just purchased a home on the bayou, it sits on stilts 10' in the air. Upon purchasing the home I had a contractor come in and remove the old board and batton siding and replace with t1-11. I also demoed the interior bedroom for a make over before i move in. In doing so i believe i have uncovered a problem with the attic and the construction of the metal roof. The home was built by the previous owner and is 20x40 with a 3' peak height. The metal roof was installed over strips of 1x4 nailed directly to the wood trusses. insulation was then installed on the celing I have what appears to be condensation damage to the insulation above the celing, although i have not whitnessed the condensation as the home is not habitable at this point i believe the roof to be condensing. I do not want to refinish the bedroom without ensuring i have solved the condensation issue first. I need to be able to move into the house and "rough it" until i can get to some of the major repairs as the cost to pay to have the house repaired is unbelievable due to the height. I have spent most of my budget on the siding as the board and batton was not taken care of and you could see directly into the home. However i do not want to do something that will end up causing me more work in the long run. I did have a company offer to do spray insulation, but i plan to replace the roof next year. Plan: Remove all current insulation above the celing install insulation (batt) inbetween the joists with the moisture barrier towards the house install insulation (batt) above the celing refinish room with moisture barrier installed prior to wall finish ensure that adequate ventilation from the soffit to the ridge vent next year replace the roof, 1. sheath the roof 2. apply tar paper 3 apply new metal roofing is my plan viable, what else/more can i do to prevent the condensation until the roof can be replaced? thank you dave
Todd Miller
Classic Products, Inc.
10/19/2014
Dave, that sounds like the perfect plan. I really have nothing to add.
Info @windowsonwashington.net
An informed customer is our best customer.
10/20/2014
Sounds like someone has done their homework. I would only add to air seal all the top plates, penetrations, etc. This will keep more of the conditioned air in the home and further lessen the condensation potential.
david spaulding
10/26/2014
Gentleman, Thank you for your reply. In doing a bit more research i happened on a product sold by the big box stores that is essentially like a egg carton made from foam, it can be installed next to the metal roof and allow airflow from the soffit directly to the ridge cap, then insulation batt can be placed on top of this to insulate the attic space. Would this be a worthwile step to install the foam sheets then batt inbetween the trusses next to the roof, then proceed with finishing the room? As i finish the home i intend to run all utilities through the floor of the home, it is easier to access than the roof.
Info @windowsonwashington.net
An informed customer is our best customer.
10/27/2014
Ventilation is preferred if the structure and layout can accommodate it. In that application, I would prefer to make my own baffles of rigid board.

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