Venting a cathedral or low slopped roof is not easy. What you need to accomplish is to have continuous air movement from the soffits up between all the roof joists and somehow out the top. That is what ridge vents were invented to do. But it must be noted that a ridge vent without good open conti...
From top to bottom:
1- Check the spark arrestor or rain cover, whichever you have on your chimney. Its most important function may in fact be to keep animals and birds out of your chimney.
2- The liner needs to be in good shape. Check the part that is visible from above, and occasionally have a...
When placing de-icing cables on a roof which has leaf guards on the rain gutters the layout of the cables need to be modified from traditional installations because the small holes in the leaf guards freeze over very quickly.
Best practice for standard cable installation is to have the cables l...
THE RAIN GUTTER’S PRIMARY JOB
We need rain gutters to collect the rain that falls on a roof and then take it far away from the foundation of the house. That, together with landscaping that slopes away from the house, can solve 80% of all water leakage problems in basements, especially dur...
Often furnace heating and air conditioning duct work is run though an attic and then back down into the house. Personally I think that this is a really bad idea unless there is absolutely no alternative route. Why?
First, most duct work is not sealed where it goes through the ceiling, so a lot o...
"Why do some houses have ice dams on the roof and others do not?"
The overview is below -- for details go to Ice Dams -- for contractors who will really solve this problem, scroll to the bottom of this article.
What causes ice dams and ice cicles?
Ice dams develop when snow is on the roof, ...
As I look at my own database, I see that I have almost 100 answers to specific questions about roofs and roofing. Despite a good search engine, that much scattered information can get confusing. Let me make just a couple of overview statements to help guide you in getting your existing or new r...
This is one of those problems that are not dealt with seriously enough by the building officials in really cold regions. I have opened a blog space at the bottom of this article for you to add in your case history so we can demonstrate that this is a large and continuing problem. Take a look...
Wayland asked: “Does wet Owens Corning Formula Styrofoam ever dry out?”
Extruded polystyrene insulation is generally considered waterproof. In fact it was first invented by Dow Chemical for the US army in WW I to provide unsinkable floating bridges -- and has been used as the flotation eleme...
Example: Styrofoam products by Dow (by the way, Styrofoam is a Dow Chemical brand name and not a generic term for foam insulation).
Colour: Blue (Dow) or Pink (Celfort)
Thermal Resistance: RSI - .035/mm R - 5.0/in. Very high.
Cost: high
Capacity to dry out if wet: Won't get wet
Fire Resistan...
