-- Take care of air barriers, ventilation and vapour barriers before insulating. Check out these three topics in the Search Tab above.-- Don't block the eave vents with insulation.-- Do cover the top of the outside wall.-- Don't put plastic foam on top of porous insulations (batts, loose fill) a...
Ventilation in a Canadian attic does very little to remove moisture when the temperature in the attic is below freezing. During that time, the moisture is in the form of Ice and the passing air simply won't remove it -- whether you have passive vents or power vents. When things warm up, if the ...
Click here for the BP Class Action Suit relating to failing organic based asphalt shingles. Asphalt shingles should be able to take a lot of heat and cold, over and over again. So why do some suddenly curl up, asks Craig from Point-Claire, Quebec?Cold climate shinglesProbably the first thing to u...
Sol, from Sudbury, Ontario, has terrible ice dams, as you can see in the photo. They are directly over his bay window. Take a good look at the house design. The bay window comes right out to the edge of the roof, preventing any possibility of any ventilation up over this area. In addition, be...
If you can see the wasp nest, you can buy special sprays that will allow you to stand about 10 feet away and shoot at them. Make sure to wear protective clothing and goggles, both for the overspray if the wind moves aginst you, and for some angry wasps. The second photo above shows just how far ...
Hector from North Bay, Ontario, tells me that he has just built a new house. He has soffit vents on both side of the house but no gable nor roof top vents. Is this enough?Simply -- NO.If there is a strong wind, you would probably get a little air moving through the attic, but most likely just ...
George from Fort Frances, Ontario has a problem of snow melting off of his new addition. He is trying to pin down the problem because this causes ice formation on the edge of the roof.He had a ridge vent installed, but never checked to see if his soffit vents worked. A ridge vent, without goo...
Ken in cold Saskatoon is worried that adding insulation to his attic will cause problems. The key is to insure that he has good ventilation coming in through the soffits and going out higher up on the roof.In this segment we showed how to go into the attic to see if daylight was visible around t...
Blocking the eve vents with the insulation is one of the most common causes of moisture problems in attics. The insulation should extend over the top of the outer wall and stop short of the vents, not touching the roof in such a way as to block air passages from the vents into the attic.Batt...
Hello Jon,
I have a cathedral ceiling with a shingled roof. If I insulate the roof air tight, will the shingles lift and curl as they do on poorly ventilated roofs?
The other thought is leaving an 1 1/2 inch space between the roof deck and the insulation and installing a ridge vent, which give...
