I built a lean-to shed/greenhouse on to the end of a Marley garage 10 years ago. I'm about to re-felt the roof and read Thermo's advice about using garage grade felt.
Two questions:
1. Do I need both garage felt underlay and garage felt top sheet?
http://www.wilkinsonplus.com/invt/3223340
http://www.wilkinsonplus.com/invt/3222340
2. Where the lean-to joins the garage, trying to seal the felt under the the corrugated garage roof overhang was very difficult. Used roof sealant, no room for flashing.
Want to do a better job, but don't know how. Wondered if this may work. Roof gradient very shallow - only option to accommodate greenhouse dimensions. Run off from garage can be substantial. Want to avoid water blow back in windy weather and capillary action.
Grateful for any ideas.
Two questions:
1. Do I need both garage felt underlay and garage felt top sheet?
http://www.wilkinsonplus.com/invt/3223340
http://www.wilkinsonplus.com/invt/3222340
2. Where the lean-to joins the garage, trying to seal the felt under the the corrugated garage roof overhang was very difficult. Used roof sealant, no room for flashing.
Want to do a better job, but don't know how. Wondered if this may work. Roof gradient very shallow - only option to accommodate greenhouse dimensions. Run off from garage can be substantial. Want to avoid water blow back in windy weather and capillary action.
Grateful for any ideas.