Casement window leaking up top - fear of mold?

[giggles]

We have a sun roon with casement windows.  Rain has been every heavy here, and this weekend the gutters were just overloaded.  As the overspilled, it came down on a casement window in our sunroom.  The water leaked through the top of the window and into the sunroom.  Fun!  Nearly filled a 5 gallon bucket with water.

Help!

1.)  We need to add some additional downspots to the gutters on the house.  I am thinking 2 additional downspouts will help the gutters from overflowing. 

2.)  Help on how to fix the casement window?  We have it duct taped shut right now as a temp solution. 

3.)  We just moved into the house, and I am really burning up about this.  Our inspector spotted some water on the floor, but the seller said it they left the window open and water got in.  Clearly, that was not the truth.  I am afraid of mold from the previous owners not treating this problem.  Since the rainstorm, we have had the window in the sunroom closed, and it smells very musty.  The A/C in the room is not working right now, but I am getting paranoid about mold hidden in the walls.  I bought a mold test kit, but it won't be here for a couple of days.  I am picking up some DampRids.   Is is just musty from the hot/rainy weather and no A/C?  Should I be afraid of hidden mold?  I am scared!!

[gdborton]

Before you run off and spend money adding gutters, first check that yours aren't just clogged.  Even with covers they can fill up pretty quickly.

[giggles]

I can see the gutters on the sunroom, and they are clear.  I can't see the ones on the 2nd floor, but they seem to be draining properly.  I will have them checked anyway!

[52cents]

Hard to diagnose without further explanation and photos. Where is the water coming in? between the jamb and the sash?
Damp rid will not do enough to pull moisture out of the room. You would be better off with a dehumidifier or AC unit.
In addition to making sure your gutters are clear, take a look at the roof, how much roof is that gutter serving? Also, check the slope of the gutters. Quite often they are installed level or sloping the wrong way. Also check that the downspouts themselves are not clogged. put a hose down it to see.

[Greg]

Additionally, I'd look carefully at how the window header is flashed.  There should be flashing in place to direct water running down above the window out in front of the window.  The weatherstripping behind the sash is also suspect, and should have been able to prevent the water coming in.