Rough wall to paint or frame? - Home Theater Forum and Systems - HomeTheaterShack.com
 
Thread Tools
post #1 of 9 Old 01-16-15, 04:55 AM Thread Starter
Shackster
 
Join Date: Jan 2015
Location: Australia
Posts: 10
Rough wall to paint or frame?

Currently projecting onto the living room wall with the popular Benq W1070 in eco
Screen size is currently ~130" with -1 keystone
Projector is ~4.5m from the wall
seating is 4.5-6m away

I have filled two vent holes and started sanding but the wall is anything but flat with a gentle ~5mm ripple\curve when i hold a long piece of steel across the screen\wall
The top coat of paint is a very rough surface on top of two darker coats


So down to the questions

How bad is it not to have a perfectly flat screen? it doesnt seem to bad since the ripple\curve are gradual with maybe two high points ether side of the middle before dipping back towards the edges but then the paint has a very rough surface maybe this will change and become more annoying with a smoother paint?
So im open to ideas on how best to deal with that if at all

Then the ever popular question what paint to use for somebody in Australia and should i use something different for the first coat
The living room has decent light control with blackout roller blinds but the room itself is pale with cream carpet and a shiny ceiling which the projector does a decent job of lighting up in bright scenes

I would prefer accurate color over deep blacks but obviously there nice to
Used for tv\movies and displaying photos

Cheaper the better naturally but budget is flexible if it seems worthwhile
Thanks

some picks
http://i3.photobucket.com/albums/y83...pse8743dff.jpg
prior to vent removal...
http://i3.photobucket.com/albums/y83...ps5ad18d99.jpg
dasa2 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 01-16-15, 05:19 PM
HTS Senior Moderator
 
Prof.'s Avatar
The Mad Professor
 
Join Date: Oct 2006
Location: Murraylands South Aust
Posts: 8,367
My System
Re: Rough wall to paint or frame?

You can probably get away with some slight curvature in the wall, but I wouldn't project onto a rough surface..
You would get a better result by placing a flat panel on the wall..
Just use battens top and bottom and packed up to provide a flat mounting surface..Then fix your screen to that using screws or french cleats..

Prof..
Home Theatre...the never ending story!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
Prof. is offline  
post #3 of 9 Old 01-16-15, 09:43 PM Thread Starter
Shackster
 
Join Date: Jan 2015
Location: Australia
Posts: 10
Re: Rough wall to paint or frame?

Sanding and a few thick coats of paint should make the surface smooth

If i was to install a flat panel over it im not sure what material i can get for a screen about that size
dasa2 is offline  
 
post #4 of 9 Old 01-17-15, 05:07 PM
HTS Senior Moderator
 
Prof.'s Avatar
The Mad Professor
 
Join Date: Oct 2006
Location: Murraylands South Aust
Posts: 8,367
My System
Re: Rough wall to paint or frame?

If the surface is slightly rough and you can just sand it and then paint, that's fine..
Are you looking at a 16:9 or 2.35:1 screen?

Prof..
Home Theatre...the never ending story!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
Prof. is offline  
post #5 of 9 Old 01-17-15, 05:40 PM Thread Starter
Shackster
 
Join Date: Jan 2015
Location: Australia
Posts: 10
Re: Rough wall to paint or frame?

16:9 seems to fit the wall space fairly well
170cm is the max height i can have have the screen with the current plaster
308cm is the current width im running as shown in those pictures

im planing to stick some black felt to the wall so if i want to run 2.35:1 i can just tilt the projector down set the keystone back to 0 and extend the black felt above the screen
dasa2 is offline  
post #6 of 9 Old 01-19-15, 07:01 PM
Senior Shackster
 
Join Date: Sep 2012
Location: Greece
Posts: 519
Re: Rough wall to paint or frame?

Using the keystone option is worse than a not perfect wall in my opinion. Any chance to turn it off?
Yiannis1970 is offline  
post #7 of 9 Old 01-20-15, 07:14 AM Thread Starter
Shackster
 
Join Date: Jan 2015
Location: Australia
Posts: 10
Re: Rough wall to paint or frame?

yes i can turn it off just the screen will be slightly narrower at the bottom its fairly hard to notice
that or i make the screen a bit smaller so its further down the wall

edit: you weren't kidding the difference between 0 and -1 keystone is huge to the sharpness
dasa2 is offline  
post #8 of 9 Old 01-22-15, 10:22 AM
Senior Shackster
 
Join Date: Sep 2012
Location: Greece
Posts: 519
Re: Rough wall to paint or frame?

No, i was not...keystone is for ban for life!!
Yiannis1970 is offline  
post #9 of 9 Old 01-24-15, 07:00 AM Thread Starter
Shackster
 
Join Date: Jan 2015
Location: Australia
Posts: 10
Re: Rough wall to paint or frame?

after sanding for a bit it seems the wall has had 3 coats of different color paint over the years and a number of patches where things have been changed with renovations in the past
the last coat of paint ist very well stuck in some places and the sander has ripped it off in chunks and other spots it bites in due to edges\curves where the wall changes

i have grabbed 2l of cheap white flat ceiling paint but im not sure how well it will cover small holes one layer of paint deep where the sander has ripped a chunk out from the top coat of paint revealing the darker coat underneath
guess i will find out tomorrow then decide where i go from there
at the very least for now it will be better than it was till i get something better sorted
dasa2 is offline  
Reply

Bookmarks

Tags
frame , paint , rough , wall

Quick Reply
Message:
Options

Register Now




PLEASE COMPLETE ALL REQUIRED FIELDS BELOW... THANKS!

REQUIRED FIELDS ON THIS PAGE
YOU MUST COMPLETE ALL OF THESE

Username
Password
Confirm Password
Email Address
Confirm Email Address
Random Question
Random Question #2




User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

AN INVALID EMAIL ADDRESS WILL CAUSE YOUR ACCOUNT TO BE DELETED!

See our banned email list here: Banned Email List

We DO NOT respond to spamcop, boxtrapper and spamblocker emails... please add @hometheatershack DOT com to your whitelist prior to registering or you will get nowhere on your registration.


Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 is not allowed!
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


For the best viewing experience please update your browser to Google Chrome