Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-25-2010, 08:50 AM   #1
Newbie
 
Join Date: Mar 2010
Posts: 6
Share |
Default

electric roof vents


Is there a fire hazard with electrical thermostatically controlled roof vents? Someone told me whirly bird vents were safer.
iampots is offline   Reply With Quote
Old 03-25-2010, 08:59 AM   #2
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Default

electric roof vents


ANYthing electrical could be considered a 'fire hazard', but I don't think you need to worry if you choose them.
However....using 'whirly' vents is free.

DM
__________________
[SIGPIC][/SIGPIC]Click
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 03-25-2010, 10:56 AM   #3
remodeling pro
 
Join Date: Sep 2006
Posts: 1,399
Default

electric roof vents


I have never heard of any fires being attributed to power vents, but IMO they have always been way over hyped, and I try to avoid them. The motors in them generally do not last more than two summers; and there have been many studies that prove they use more energy to operate than they could possibly ever save. I'd go either whirlybird as suggested, or good old time proven soffit/ridge method. Cooler air in low/hot air out high........can't beat the laws of nature.
troubleseeker is offline   Reply With Quote
Old 03-25-2010, 11:08 AM   #4
Newbie
 
Join Date: Mar 2010
Posts: 6
Default

electric roof vents


Thanks
iampots is offline   Reply With Quote
Old 05-05-2010, 01:44 AM   #5
Totally screwed together
 
Join Date: Dec 2006
Location: Cypress, SoCal
Posts: 325
Default

electric roof vents


"Whirlybirds" are the ugliest thing you could put on your roof. You could put a rusted out wrecked Yugo on your roof next to that vent and people would walk by and say "Man, that vent is ugly... I wonder how they got that car on the roof?"

Those vents don't last either - it's great when they squeak when the wind blows too. You'll loooove that. At least the motor is accessible if it needs to be replaced.
xxPaulCPxx is offline   Reply With Quote
Old 05-05-2010, 10:25 PM   #6
Commercial Roofing
 
AaronB's Avatar
 
Join Date: Jan 2005
Location: Illinois
Posts: 927
Default

electric roof vents


Solar.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Free inspection within 12 miles
Seamless Polyurea Roofing Membranes for Metal Roofing, Roof Leak Repair, Seamless Commercial Spray Foam Insulation, Seamless Commercial Roofing, SPF Roofing, Industrial Insulation, Our trucks are red but our roofing is GREEN!
AaronB is offline   Reply With Quote
Old 05-06-2010, 06:38 AM   #7
Shut in w/o Home
 
seeyou's Avatar
 
Join Date: Dec 2008
Location: Lexington, KY
Posts: 696
Default

electric roof vents


This may be of interest:

http://www.galttech.com/research/hou...ation-cost.php
seeyou is offline   Reply With Quote
Old 05-06-2010, 12:30 PM   #8
Totally screwed together
 
Join Date: Dec 2006
Location: Cypress, SoCal
Posts: 325
Default

electric roof vents


Quote:
Originally Posted by AaronB View Post
Solar.
Solar, really? I'd like a cost justification on that. I see regular powered attic vents going for $70, while Solar vents go for $250.

How would solar pay back the $180?
xxPaulCPxx is offline   Reply With Quote
Old 05-06-2010, 08:26 PM   #9
Commercial Roofing
 
AaronB's Avatar
 
Join Date: Jan 2005
Location: Illinois
Posts: 927
Default

electric roof vents


How much does it cost to get a licensed electrician and a licensed roofer out instead of just a roofer?

Many people claim that the it costs a lot to run an electric fan. Well does it or doesn't it?
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Free inspection within 12 miles
Seamless Polyurea Roofing Membranes for Metal Roofing, Roof Leak Repair, Seamless Commercial Spray Foam Insulation, Seamless Commercial Roofing, SPF Roofing, Industrial Insulation, Our trucks are red but our roofing is GREEN!
AaronB is offline   Reply With Quote
Old 05-06-2010, 08:34 PM   #10
Totally screwed together
 
Join Date: Dec 2006
Location: Cypress, SoCal
Posts: 325
Default

electric roof vents


I think on this site we are starting with the premise that the original poster - unless specificly stating otherwise - is going to be Doing It Yourself... ok that didn't quite work out speaking in the second hand, but you get my point.

I do agree that Solar is easy though, and that might be worth $180 all on it's own.
xxPaulCPxx is offline   Reply With Quote
Old 05-06-2010, 08:44 PM   #11
Shut in w/o Home
 
seeyou's Avatar
 
Join Date: Dec 2008
Location: Lexington, KY
Posts: 696
Default

electric roof vents


Quote:
Originally Posted by AaronB View Post
How much does it cost to get a licensed electrician and a licensed roofer out instead of just a roofer?

Many people claim that the it costs a lot to run an electric fan. Well does it or doesn't it?
My research is telling me that it costs $2-$3/day to run a hardwired roof fan. That's more than I expected and, if true, makes the solar units look more attractive to me. But, I've had two homes with powered attic ventilation. In both cases, the fans continued to run long after the sun set. I wonder how much is being given up there with the solar powered units?
seeyou is offline   Reply With Quote
Old 05-06-2010, 10:01 PM   #12
Commercial Roofing
 
AaronB's Avatar
 
Join Date: Jan 2005
Location: Illinois
Posts: 927
Default

electric roof vents


Quote:
Originally Posted by xxPaulCPxx View Post
I think on this site we are starting with the premise that the original poster - unless specificly stating otherwise - is going to be Doing It Yourself... ok that didn't quite work out speaking in the second hand, but you get my point.

I do agree that Solar is easy though, and that might be worth $180 all on it's own.
Ok, I sometimes forget that this is DIY site. I post on many different forums. Sometimes people also come in here looking for general advice as well.

On that premise, I will look at it from a DIY point of view. As far as fan cost, we will go with your $70 & 250 figures, since those are decent average numbers.

$70 fan
Conduit (how much depends on the distance from the breaker and proficiency of installer
junction box
Conduit connectors
14-3 wire
various fasteners and wire nuts
Seems like about 120-150 bucks
tube of caulk
10-12 roofing nails
monthly electric bill
band aids and defibrillator for electrical burns (lol just kidding, i hope)
How many hours of installation aggravation?

$250 solar fan
10-12 roofing nails
tube of caulk
one hour install for a decent DIY'er

For the average DIY person, electrical work is not DIY. Most of us contractors tend to forget this, but 'tis true.

Let the masses decide.

I think the most important factor is CFM... you want to make sure you're turning the attic air over enough times a day.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Free inspection within 12 miles
Seamless Polyurea Roofing Membranes for Metal Roofing, Roof Leak Repair, Seamless Commercial Spray Foam Insulation, Seamless Commercial Roofing, SPF Roofing, Industrial Insulation, Our trucks are red but our roofing is GREEN!
AaronB is offline   Reply With Quote
Old 05-06-2010, 10:05 PM   #13
Member
 
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Default

electric roof vents


I mainly used one attic fan after it was dark
Once it cooled off at nite I'd run the fan to really cool the attic down
So with a solar fan I'd still want the ability to turn it on at nite
Or I would need a 2nd AC powered fan
Scuba_Dave is offline   Reply With Quote
Old 05-06-2010, 10:10 PM   #14
Commercial Roofing
 
AaronB's Avatar
 
Join Date: Jan 2005
Location: Illinois
Posts: 927
Default

electric roof vents


I still like big huge gable vents the best if at all possible.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Free inspection within 12 miles
Seamless Polyurea Roofing Membranes for Metal Roofing, Roof Leak Repair, Seamless Commercial Spray Foam Insulation, Seamless Commercial Roofing, SPF Roofing, Industrial Insulation, Our trucks are red but our roofing is GREEN!
AaronB is offline   Reply With Quote
Old 05-06-2010, 10:19 PM   #15
Member
 
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Default

electric roof vents


MIL's house has gable vents
Older house & has never had a fan
Keeps fairly cool up there, but I've never been up there on an extremely hot day

This house has 2 gable vents
But when they finished off the 2nd floor that virtually made them useless
Especially without soffit vents
Scuba_Dave is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need opinion on this roof profenx Roofing/Siding 14 10-12-2010 12:56 AM
roof over need vents? jgreaves Roofing/Siding 3 09-25-2009 08:23 PM
help with roof vents chevy71@wowway. Roofing/Siding 5 08-17-2009 08:05 PM
Tile+Asphalt Roll Roof leaking - Opinion on what to do brookbphx Roofing/Siding 5 01-06-2009 06:51 AM
Addition and Roof Replacement lebeld Roofing/Siding 4 01-04-2009 06:11 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.