Hodgkisl t1_iy4jssy wrote

Existing home owners can win as well, especially if they desire to leave the desirable cities and move to more rural lower cost areas. Near where I live many retirees from middle class jobs in NYC move here and live like kings off pensions and the value their apartments sold for.

NIMBY are the largest issue in housing costs, the restrictive zoning hurts everyone long term.


Hodgkisl t1_iy4bga3 wrote

Lots of things have changed with the homes, window and door builds, insulation, flooring materials, electrical systems, heating / cooling / hot water systems, appliances, framing systems in many homes, etc…

Often new things are invented with little benefit to gain, but when something offers great benefit they get adopted.


Hodgkisl t1_iu8rx76 wrote

Those would be extension style springs then similar to OP, there are different layouts and sizes of spring. You should insider them for safety cables / ropes, they should go through the middle of the spring and be secured at both ends somewhere beyond the spring.


Hodgkisl t1_iu8jr3l wrote

Looking at your picture, when you replace them run a safety rope or cable through them. When extension springs break they can launch violently. Extension springs are safer for the installer but more dangerous in use if there’s no safety cable.


Hodgkisl t1_iu8jbkz wrote

Roll up doors can use either type of spring, newer roll up doors which weigh more typically have torsion springs as they last longer and are considered safer during use, though more dangerous to instal.

I Have an original 1972 wood roll up with tension springs.