This allows air to circulate over the insulation taking away any moisture evaporating upwards or trapped in the insulation fibres.
How to fit roof tile ventilation.
Have a partner hold the ladder steady so you can work safely.
Use two tiles to determine the spacing required for the battens.
Next position your ladder against your home and climb up to your roof.
Replace the drywall around the edge of the hole and seal with caulk.
Apply a bead of asphalt roof cement on the bottom of the vent.
The lower half of the flange sits on top of the shingles.
To remove the tiles lift up the tiles above them and slide the tiles out.
When this is securely in place return to the attic and screw in the plate that holds the vent to the roof.
Only time i have done a sealed roof is when we foam then by current code it is looked as living space.
Choose the location where you re going to install the roof vent.
In my opinion one of the best places to fit roof tile vents is normally the bottom third of a roof just above insulation level.
I m o vents are a must.
A minimum of a 3 inch overlap is required for the tiles.
Use a tall ladder to reach a taller overhang.
I have seen some solar power vents that blend with the tile well.
Once the tiles have been cut install the outside piece of the vent.
Near the top of the roof is ideal for extracting heat from the roof space during summer.
Locate the drill bit.
If you have any electrical work you can also install this now.
This space is where the flashing will be installed.
First head up to your attic and determine where you want to install your roof vent.
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I will forward some installed pics of the jobs in the past we have built with tile that have them.
Remove two tiles that are next to each other.
Make a template using cardboard that s the width of your overhang with a hole the size of the vent cut in it.
After you have determined the distance between the first two battens measure the distance and set battens using that.
Slide the vent under the shingles so they cover the top half of the vent flange.
The size of the rectangle will depend on the size of the vents but.
Drill a hole upward through the middle of the area you desire and leave the drill bit sticking up through the roof so you can find it from the outside.