Here are some tips to help you keep your temperatures manageable. 1  Do not let your grow room exceed 86Â° F. Keep it between 70Â°-86Â° (21Â°-30Â° C) 2  Heat rises. So place air intake vents as low as possible in the room and exhaust vents as high as possible. 3  Circulate the air in your grow room to keep temperatures even.
Quick Answer. Perms can take between 1 and 2 hours, depending on how long the hair being permed is and what perming technique is implemented by the stylist. Once complete, a perm is not completely settled until about 28 hours have passed. Keep Learning.
Perms, relaxers, previous color can affect. your color results. 1 / Cut a inch wide strand of hair from your. roots (back of head) and tape strand. 2 / Completely cover with the mixture. remaining from the Allergy Test. 3 / Time for 20 minutes (18 minutes for.