Humidity / Discussions

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

We live in Bellingham WA and our basement was built in the 70's. It has high humidity (70-80%RH) although I don't see any visible damp anywhere. The washer/dry...

Posted by Robert J. Pierson Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

How do you lower winter indoor humidity in a home in Guelph, ON?

...humidity? That is odd, since your humidity isn’t all that high ‘relatively’ speaking. Houses in cold climates should maintain indoor Relative Humidity levels of...

Posted by Gary Luck May 26, 2021, 3:01 p.m. Healthy indoor air quality 1 Responses

How do you solve high humidity issues in a home?

...humidity is frequently in the 70's (yuck!) on the top floor and low 60's on the main floor. Sadly, portable dehumidifer does not seem to help and I am tired of ...

Posted by Megan McIntosh Jan. 6, 2021, 2:18 p.m. Ventilation 0 Responses

How do you fix high humidity levels in a basement?

...humidity inside my home is still high 50-65% . Furthermore, a contractor recommended installing an air purifying system, adding additional insulation in the a...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...humidity pretty static or lower with dehumidification system) met the 3/4 inch plywood subfloor of the outdoor deck. From the inside of this portion of the indo...

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

Should our HRV keep our humidity lower than 40%, even in the cold months?

...humidity, so in your case it's not helping with the humidity, so as long as the air isn't seeming stale I'd cut it back a bit, maybe to whatever you would norma...

Posted by Kim Clement Feb. 8, 2021, 5:43 p.m. Ventilation 5 Responses

How do I get rid of moisture with cement floor crawl space that has a vapour barrier?

...humidity levels? Homes (basements, crawl spaces and the whole shh-bang) are best kept below 60% Relative Humidity to avoid mold and I’m wondering how high above...

Posted by Cindy Chatham 04 chatham Aug. 25, 2020, 4:47 p.m. Crawl spaces 1 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

Should I get an HRV or an ERV?

...humidity is needed in winter and too much humidity in summer. Do I need a HRV or ERV unit...given the fact that I may not have an airtight home? If yes....whi...

Posted by RUPINDER ARORA March 12, 2021, 10:23 a.m. HRV and ERV 1 Responses

Do you need an HRV or ERV in a 68 year old home?

...humidity at 20% in a cold spell and I am going to install a humidifier. I have a merv16 air filter installed. Do I need an HRV or ERV ? Do you think this house ...

Posted by Gary Szymkowski Nov. 1, 2020, 10:11 a.m. Ventilation 0 Responses

Why is there condensation in between 1.5" polyiso board and roxul insulation?

...humidity in my basement is 45%.

Posted by Tyler Norrie Feb. 9, 2021, 2:32 p.m. Basements improvements 0 Responses

What is the best wall for a house by the sea in New Brunswick?

...humidity (often 100%). We have now installed a air heating floor (Legallet), the roof is steel, the windows are from Polytech, and the sidding will be yakisugi....

Posted by Nathalie Lacaille Jan. 6, 2021, 9:36 a.m. Wall assemblies - new construction 0 Responses

What's the best way to seal a crawl space and insulate?

...humidity throughout the home? Will it help with temp in the finished room next to it (split level home). Thanks! This seems to be a multi-part question in a way...

Posted by Steven Johnston Feb. 23, 2021, 12:35 p.m. Crawl spaces 1 Responses

Can you help with passive solar greenhouse exterior wall details?

...humidity inside). Location and type of vapour barrier. 3) best rigid insulation type to create a thermal break / if that rigid insulation should be breathable...

Posted by Rick Carter Aug. 11, 2020, 8:06 a.m. Greenhouses and Sunrooms / Solariums 1 Responses

How do you stop wood stove smoke from entering a home?

...Humidity is 50 per cent or less. Don't want to give up the wood stove. Don. Topsham, ME. You do have a few points here to address, but the first thing I would...

Posted by Don Leaver March 24, 2020, 10:49 a.m. Wood stove and biomass heat 4 Responses

How do you insulate a cottage crawlspace? It's in the Haliburton Highlands

...humidity, c) remove the styrofoam boundary from underneath, and d) spray insulation on entire perimeter of plywood skirting? Would moisture problems under cot...

Posted by Beata Domanska May 25, 2020, 11:38 a.m. Crawl spaces 1 Responses

Should I insulate a crawl space from the outside?

...humidity in the crawlspace was in the 60s. I have since put 6 mil poly down on the floor which has brought the humidity down to a reasonable 38% (within 5% of t...

Posted by Ryan Argente March 7, 2021, 5:07 p.m. Crawl spaces 0 Responses

What is the best foam board insulation under drywall?

...humidity, cold, and snowy environment. Heating only no cooling. Currently have T1-11 siding, tar paper, R13 FB insulation, and the interior finish is 1/4 plywoo...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 1 Responses