L Luternau Registered User Messages 1,265 Yesterday at 5:42 PM #1 Building as follows 3 bed semi, standard construction. Brick and render fimish. Drylined internal walls, attic insulation.above ceiling. Double glazing and Gas c/h No BER, assume about D1/C3 What option to improve wall insulation and airtightness?
Building as follows 3 bed semi, standard construction. Brick and render fimish. Drylined internal walls, attic insulation.above ceiling. Double glazing and Gas c/h No BER, assume about D1/C3 What option to improve wall insulation and airtightness?