Masonite in garage degrading


Old 03-07-05, 01:01 PM
Visiting Guest
Posts: n/a
Masonite in garage degrading

I have a garage which has been sheathed in masonite (about 3/16" thick cardboard type stuff). House is 50 years old. Garage also has aluminum siding over that. Some of the masonite at the bottom of the walls is degrading/breaking from moisture getting in. Grass is growing in some of those holes INSIDE the garage. I would like to patch up those holes from the inside without taking off the siding. How can I prep 1/2" OSB to make it more water resistant?

Or should I got with treated plywood?

Garage foundation is a slab, and appears to be about level with the surrounding soil. Ideally the slab would be above the soil level, but that's what I have to work with.

Is there any other way of preventing water/snow from making the sheating wet? Like ringing the garage outside, with 10" tall bricks, or something? This would provide a barrier to snow, but rain going down the siding would still affect the sheating somehow.
Sponsored Links
Old 03-07-05, 01:06 PM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 18,389
Received 0 Votes on 0 Posts

Do you have gutters on the garage? That would be the first thing that would help out here.

Old 03-29-05, 08:21 AM
Visiting Guest
Posts: n/a
No gutters on garage.
Old 03-30-05, 07:45 AM
thiggy's Avatar
Join Date: May 2002
Location: Alabama
Posts: 718
Received 0 Votes on 0 Posts
You can't really replace the sheathing from the inside. You will have to remove the siding to get access for proper replacement. Sorry...
Old 03-31-05, 07:06 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 47,650
Received 319 Votes on 283 Posts
If you use osb I would paint it well. The biggest thing you need to do is prevent moisture from getting to it in the first place. That may entail some landscape changes, gutters etc. It is never good to have anything growing right up to non masonary surfaces.
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

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: