Recent Q&A

• Using Leftover Vapor Retarder to Air-Seal Crawlspace

  Hi. We have an older 50's era brick home in CT which has been added on to. It is built into a slope allowing a walk-out cellar. We built a…

• Moisture in cathedral ceiling assembly

  Hi. We have a 1951 brick cape which we have been renovating for several years. We have a small area in the valley of two gables that was turned into…

• Attic ventilation: What to do?

  Hi GBA, I have a 1950's brick cape in southern CT (believe zone 5) with an ~5ft tall attic, gable vents only, no ridge vent or fans. Being an old…

• Tricks on insulating an already finished wall

  Hi GBU, Last summer I sought some opinions on whether or not it was worth demoing existing plaster walls while we renovated an upstairs bedroom (the last room of a…

• Crawlspace insulation – do I need to change my plan?

  Hi All, We converted an old closet in a bedroom by demoing it's front wall and installing a header, creating a nook for a desk. Behind the nook WAS an…

• Insulating rafters in this area

  Hi GBA, I am working on insulating a bedroom and down to a few key areas. I have a set of built in shelves made from 3/4" pine flush with…

• Best practice for extending out a wall

  嗨GBA,我有一个gabl二楼e end wall which is constructed of (from outside) brick, air gap, block, air gap, 3/4" plaster/blueboard. There is no framing/insulation in the…

• ROI for insulating 2nd floor walls

  Hello GBA, Fair warning that the answer to my question may be "as you wish" since there are very personal reasons for deciding one way or the other, but I…

• Strategies for internal rigid foam

  Hi, First, thank you for all the great advice on this site and your willingness to help. This is a wonderful resource! I have a brick on 4" cinder block…

• Ideas for insulating cinder block wall interior

  Hi. We are renovating a bathroom on a 1950's brick house in Connecticut, which has one westward facing cinder block and brick wall. It is brick facade, a 3/4" air…