Proper Placement Of Dormer Roof Vents? - Roofing/Siding - DIY Home Improvement | DIYChatroom

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


Thread Tools Display Modes
Old 10-03-2012, 12:44 PM   #1
Join Date: Aug 2012
Location: Los Angeles, California
Posts: 19
Rewards Points: 28

Proper placement of dormer roof vents?

Hi all,

Are there any suggested placements for dormer roof vents? I ask because when my mother had her house roof replaced, I noticed that the roofer did not put the dormer roof vents in the same place as where they existed before.

I'm currently trying to determine if they decreased the number of vents too. Currently the house has two vents. One on east side of house (vent faces east) and one on west side of house (vent faces west).

According to old photos, there used to be a vent on the north side of the house (vent facing north)...i assume there was one on south side of house facing south too....

Ever since the new roof, the house seems to retain heat more than before. New roof was the asphalt material..old roof was wood shingles. Newer building code prevented us from installing wood shingles again. House is located in West Los Angeles, 8 miles east of beaches so we do get nice breezes.

So what are some general guidelines for dormer roof placement? and number of vents? The house has sofit vents all along the perimiter of the roof too.

THanks for any input.


withoutapaddle is offline   Reply With Quote
Old 10-03-2012, 02:10 PM   #2
Roofmaster417's Avatar
Join Date: Jun 2010
Location: Springfield and Joplin Missouri
Posts: 981
Rewards Points: 500

Typical vent placement on any part of the roof is about 12"-14" off the ridge line symmetrical.

Removing a vent is never a good idea if it was on the initial blue prints.However depending on the era in which your home was built new technical home construction technique advancements have been made.

If possible post the approximate square footage of attic space along with the roof pitch and it can be determined the amount of ventilation needed.

Why wasn't Ridge Vent installed ? Was it offered ? Ridge Vent and functioning soffit is the best ventilation combination.

Nonetheless its possible to acquire a decent ventilation flow with vents and soffit.As long as there is enough vents in place as required to attain proper ventilation.


Roofmaster417 is offline   Reply With Quote

Thread Tools
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
Insulate Attic. No soffit vents. Roof vents yes. jefsboys Remodeling 14 06-29-2012 11:40 AM
Why Leaking Roof under Dormer / hole in OSB!!! MB1 Roofing/Siding 32 12-15-2011 04:20 PM
Should I add 2 rotary turbine vents to roof to reduce summer heat? pcumming Roofing/Siding 3 09-30-2011 08:26 AM
Roof Turbine Vents vs. Traditional Ridge Vents. One Better? kennykenny Roofing/Siding 2 04-29-2011 09:33 PM
Roof Vents for Very Hot Second Floor somewhatsketchy Roofing/Siding 1 08-11-2010 10:54 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1