Recent Q&A

• Tape House Wrap or Exterior Foam

  I’m planning to install new vinyl siding on my house with 1” xps foam insulation in climate zone 5 with 2x4 walls. The build up will be plywood, house wrap,…

• Insulating top half of basement wall

  Hi I am considering insulating only the top half of my basement foundation wall in the unfinished portion of my basement. The bottom half has waste, vent and water pipes attached…

• 导管导向叶片s

  How do I tell if my galvanized steel rectangular ductwork has turning vanes without taking the ductwork apart?

• Attic – Exposed Mineral Wool

  Hii am in the middle of insulating my attic and have 3” of closed cell insulation on the underside of the roof sheathing. My plan was to install 3 inches…

• Attic Spray Foam UV Protection

  Hii have decided to have 3” of closed cell spray foam and 3” of mineral wool insulation installed at the underside of my roof sheathing and inside of table walls.…

• Clearance in front of minisplit

  I am interested installing a LG Multi F mini split system with a low wall console indoor unit (LQN090HV4). https://lghvac.com/resource-service?filename=EM_MultiF_IDU.pdf The installation instructions have required clearances on the top, bottom…

• Attic – 2nd floor ceiling interface

  I am interested in improving the air sealing and insulation in my house in climate zone 5. The house has an unfinished attic with two dormers. The roof of the house…