Humidity / Discussions

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 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

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

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'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

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

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

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

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

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 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

What is the best heating and cooling system for a slab on grade home?

...humidity. Based on these factors, what type of heating and cooling system should we be looking into? I feel like if we go with a slab on grade we would almost c...

Posted by Matthew Gioia July 7, 2020, 11:03 p.m. Heating and cooling 3 Responses

Can you create a passive wine cellar by insulating and air sealing a crawl space?

...humidity (under 50%Relative Humidity is important) Another thing that stuck out to me was that it is ventilated. San Francisco is a fairly humid climate, so y...

Posted by JC Wong April 2, 2021, 6:50 p.m. Crawl spaces 2 Responses