This book explains ventilation and insulation... old houses like mine are leaky and get too much insulation in the wind, if you seal a house you should then control the ventilation just right.
formatting link
and Weatherize (Build Like a Pro - Expert Advice from Start to Finish) [Paperback] Bruce Harley
? See the customer review... Like 1316127394 false -1 0 0 0 (0) RRP: £16.95 Price: £15.26 &