Vent / Discussions

How you vent a metal roof?

...ventilation as you mention - make sure air can flow and water can drain right below the metal. We don't have a dedicated page I can reference, but here is our p...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

In the winter should you heat a low/dirt floor crawl space with a furnace vent?

...vent mold . But heating a dirt floor crawlspace without taking any steps towards insulating the crawlspace and creating an air seal is going to cost dearly, so ...

Posted by janis hobson Dec. 11, 2019, 3:17 p.m. Crawl spaces 1 Responses

How do you insulate a cathedral ceiling?

...vent or not to vent a cathedral ceiling. I'm leaning towards not venting my cathedral ceiling and using closed-cell spray foam insulation. My walls are double...

Posted by Raoul Lions Oct. 19, 2019, 8:07 a.m. Roof assemblies - new construction 1 Responses

How do I stop a leak from my attic?

...vent, and wiring, insulate the bathroom vent. Any thoughts? Frost buildup in an attic is a result of moisture that can’t escape, and that is caused by the ins...

Posted by Markus Duess Feb. 11, 2019, 12:42 a.m. Roof assemblies - renovation 1 Responses

What is the best way to reduce humidity in a basement?

...vent is fully sealed, there is no actual ventilation in the basement apart from the drafts. There is a sink, the hot water tank with drain off and furnace, and ...

Posted by Frank Cooper Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

Followup to the question How do you install Larsen Trusses on a home in Minneapolis?

...Vent SA wrap, at $569 per 561 sq. ft rolls. Is that the typical price? Alternatives: Henry Blueskin VP-100 wrap is $239 per 400 sq. ft and has perm rating of 33...

Posted by Ken Traefald Feb. 27, 2020, 1:49 p.m. Wall assemblies - renovation 1 Responses

How do you deal with a house under negative pressure?

...vent just outside the bedroom door. But the real solution for properly balanced ventilation in your home, would be to have an HVAC contractor come and look, a...

Posted by Connie Taylor April 16, 2020, 1:41 p.m. Ventilation 1 Responses

Should I install basement drain tile vents?

...vents mold from forming behind finished walls. Does this work or is it only a path for Radon and ground vapors into the basement? I don't fully understand the v...

Posted by gary taube Dec. 11, 2019, 10:14 p.m. Foundation and basement improvements 3 Responses

What is the best way to insulate a crawlspace to keep humidity down and stop odors?

I have a crawlspace with 4' concrete walls and a cement floor, insulation between the floor joists and has 3 - vents to the outside. I am thinking of 1" foam b...

Posted by Dave Bell Oct. 24, 2019, 3:57 p.m. Crawl spaces 3 Responses

How do you install your own DIY radon mitigation system?

Good morning, I'm looking to install radon mitigation (sub-slab suction). I understand it's not too difficult, but there are a few details I'm not sure about...

Posted by Ariel Fridman Jan. 27, 2020, 10:59 a.m. Radon in Homes - Mitigation 1 Responses

How do you attach exterior siding without affecting the air barrier on a passive house?

...Vent SA is too expensive for my project. Any suggestions are welcomed. Many thanks! Hi Anwas, Where you saw us putting pieces of Delta Flexxband where screws ...

Posted by Scott Bowker July 16, 2018, 11:07 p.m. Wall assemblies - new construction 3 Responses

What causes moisture on a ceiling in winter?

...ventilator or energy recovery ventilator) Do you use exhaust fans? (bathroom fan and stove hood) Does your stove hood vent directly outside or does it filte...

Posted by Cheri Banet Jan. 23, 2020, 10:22 p.m. Wall assemblies - renovation 1 Responses

I have many issues with my house where should I start?

...vented at the soffits and with a roof peak vent. You could use Rockwool batts , I don’t believe they still provide a loose fill insulation . Alternatively you c...

Posted by Bryan Squirrell Sept. 29, 2019, 3:08 p.m. Wall assemblies - renovation 1 Responses

Why is there fost on underside of roof deck in overhang?

...ventilation in the soffit (perforated metal strips used in wood soffits) would probably create enough ventilation to prevent the air from hitting the dew point....

Posted by George Paul March 23, 2020, 12:10 p.m. Roof assemblies - renovation 2 Responses

Combo structural sheathing, WRB and thin insulation panel in Ontario?

...ventilation holes (dryer vent, wood stove chimney, bathroom vent, etc) all serve to relieve some of that pressure. Stripping the house from the outside will als...

Posted by Steve Bull Jan. 14, 2020, 6:06 p.m. Walls and Roofs 3 Responses

I want to insulate the outside of my house, which type of insulation do you think is best?

...vent and water to drain, which won’t happen if you install strapping horizontally. We have a page on how to install siding here where that is all explained in d...

Posted by J. Ferguson Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 7 Responses

How do you insulate a crawlspace with dirt floor?

...venting solution and then close the vents. Once you've done that, keep an eye on the humidity levels and keep a dehumidifer running down there if necessary. A...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 1 Responses

Is Condensation on Windows a bad sign?

...vent out? Do have you have (and use) a bathroom fan? And how old is the house - do you know the year it was built?

Posted by Greg Olmstead Dec. 12, 2019, 6:21 a.m. Walls and Roofs 1 Responses