I have two exterior doors that are leaking air, they shut fine and the weather stripping is the original installed when the house was built about 8 years ago (with the exception that I replaced today).
The doors use compression weatherstripping like this: http://www.lowes.com/pd_29415-81-91868_4294929691__?productId=1082127&Ns=p_product_qty_sales_dollar|1&pl=1¤tURL=%3FNs%3Dp_product_qty_sales_dollar|1&facetInfo=
However, it doesn't fill the entire gap. The back door does seal if I press on the door once it's closed (it has to move about 3mm to seal the gap). But I can't figure out how to make it close more tightly. The front door, the door isn't completely square the the gap at the bottom is wider than the strip.
What should I do to seal my doors?