Patchy walls

[Steerpike]

I'm sure this has been asked before but here goes.
My walls were emulsioned (bright yellow by previous occupant)
I have put on two coats of cheap white emulsion to give a base for new colour. After two coats of the colour (B&Q own make, vinyl matt emulsion) the walls look patchy. There are ovelaps of darker shades and other diferent densities of colour, and brush marks.

I have found it difficult to spread the paint evenly, have tried thick and thin brushes and tried adding water to the paint. I have found it difficult in maintaining a wet edge painting about a 30 inch strip top to bottom. By the time I return to the top the edge is dry. I'm using a 3 in. brush. Didn't fancy a roller because of the mess.

1) will a third or fourth coat solve this problem
2) should I use a bigger/better brush
3) or a roller
4) buy better quality paint.
5) paper walls first then repaint.

Please help this is my least important room (entrance hall/passage) and I need to know what I'm doing wrong before I start on the other rooms.
Thank you

 

[Galena1]

Hi - Use a roller for the main areas and a brush to get a neat finish at the edges.

 

[libby lou lou]

Instead of a 30" stripe, halve it then you'll be back up there in half the time, anyway, that's not needed to paint emulsion, get a better quality paint while your at it, the cheap stuff isn't always the cheapest as youv'e discovered, you now may need to spend more money.

 

[Steerpike]

Are Crown and Dulux better paints? and will the quality of the roller make a difference.

 

[RigidRaider]

For a quality paint I recommend Little Greene Paint Company, sounds poncy I know but their paint is superb and extremely opaque, so it more than repays the extra cost as you only need 2 coats of this to 3 or 4 of a mass-market paint.

Google will find it for you.

 

[Steerpike]

Now that the lighter colour is on I've realised how badly scarred the walls are, so I@M going to repair them line them and start the painting again. Sooo I now have the following questions:

Will finish plaster do for filling in small gouges and hollows?

Should I size these freshly painted walls before lining?

What grade lining paper?

Will the lining paper cover any of the imperfections?

Can I expect a good paint to cover the lining paper in two coats?

Thanks