Insulating Flat Roof With Exposed Rafters - Insulation - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Insulation


Thread Tools Display Modes
Old 05-14-2011, 09:47 PM   #1
Join Date: May 2011
Posts: 1
Rewards Points: 10

Insulating flat roof with exposed rafters

I have a 1950's home in Palm Beach County, FL. In an enclosed area that was once a screened porch and Florida room, the roof is 1x6 tongue and groove on 4x6 rafters spaced 24" oc. That is the interior ceiling; no insulation. The area is air conditioned but obviously it gets very hot in the summer. I would like to install insulation in a way that leaves the bottoms of the rafters exposed. One thought is to install 4" EPS block (~R-30) between the rafters with thermoplastic decorative tile below supported by inside corner molding. I've read a number of posts that talk about venting insulated ceilings and wonder if such an unvented installation would be workable. In any case, venting the rafters would be very difficult as one area is an interior room.

I would appreciate any comments indicating whether my idea is workable or not and any suggestions for alternatives, particularly ones that do not require installing a new ceiling on the rafters.


rblevow is offline   Reply With Quote
Old 05-14-2011, 10:00 PM   #2
Join Date: Jan 2011
Posts: 247
Rewards Points: 212

well a picture would be nice but from what im getting, you have got 2 ways to insulate. put insulation on the inside and fur the beams down to keep them exposed or take the roof off and insulate form the outside with foam sheets and leave the inside alone. just my 2 cents


bluebird5 is offline   Reply With Quote

eps , insulate ceiling , insulation

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
will a flat roof always leak............. cappuccino Roofing/Siding 6 04-19-2011 04:16 PM
Flat Roof Resurfacing - Where to start? adamgram Roofing/Siding 9 09-05-2010 09:54 AM
Flat roof repair/replacement questions zmt Roofing/Siding 4 02-23-2010 11:24 AM
Townhouse flat roof - Neighbor's contractor place huge weight of shingles on our roof DIYInCT Roofing/Siding 2 11-23-2008 10:31 AM
Where flat roof meets shingled roof bstyer Roofing/Siding 1 07-07-2005 08:34 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1